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  *                   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         if ((epcm = voice->epcm) == NULL)
  29                 return;
  30         if (epcm->substream == NULL)
  31                 return;
  32 #if 0
  33         dev_dbg(emu->card->dev,
  34                 "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
  35                         epcm->substream->runtime->hw->pointer(emu, epcm->substream),
  36                         snd_pcm_lib_period_bytes(epcm->substream),
  37                         snd_pcm_lib_buffer_bytes(epcm->substream));
  38 #endif
  39         snd_pcm_period_elapsed(epcm->substream);
  40 }
  41
  42 static void snd_emu10k1_pcm_ac97adc_interrupt(struct snd_emu10k1 *emu,
  43                                               unsigned int status)
  44 {
  45 #if 0
  46         if (status & IPR_ADCBUFHALFFULL) {
  47                 if (emu->pcm_capture_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
  48                         return;
  49         }
  50 #endif
  51         snd_pcm_period_elapsed(emu->pcm_capture_substream);
  52 }
  53
  54 static void snd_emu10k1_pcm_ac97mic_interrupt(struct snd_emu10k1 *emu,
  55                                               unsigned int status)
  56 {
  57 #if 0
  58         if (status & IPR_MICBUFHALFFULL) {
  59                 if (emu->pcm_capture_mic_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
  60                         return;
  61         }
  62 #endif
  63         snd_pcm_period_elapsed(emu->pcm_capture_mic_substream);
  64 }
  65
  66 static void snd_emu10k1_pcm_efx_interrupt(struct snd_emu10k1 *emu,
  67                                           unsigned int status)
  68 {
  69 #if 0
  70         if (status & IPR_EFXBUFHALFFULL) {
  71                 if (emu->pcm_capture_efx_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
  72                         return;
  73         }
  74 #endif
  75         snd_pcm_period_elapsed(emu->pcm_capture_efx_substream);
  76 }
  77
  78 static snd_pcm_uframes_t snd_emu10k1_efx_playback_pointer(struct snd_pcm_substream *substream)
  79 {
  80         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
  81         struct snd_pcm_runtime *runtime = substream->runtime;
  82         struct snd_emu10k1_pcm *epcm = runtime->private_data;
  83         unsigned int ptr;
  84
  85         if (!epcm->running)
  86                 return 0;
  87         ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff;
  88         ptr += runtime->buffer_size;
  89         ptr -= epcm->ccca_start_addr;
  90         ptr %= runtime->buffer_size;
  91
  92         return ptr;
  93 }
  94
  95 static int snd_emu10k1_pcm_channel_alloc(struct snd_emu10k1_pcm * epcm, int voices)
  96 {
  97         int err, i;
  98
  99         if (epcm->voices[1] != NULL && voices < 2) {
 100                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
 101                 epcm->voices[1] = NULL;
 102         }
 103         for (i = 0; i < voices; i++) {
 104                 if (epcm->voices[i] == NULL)
 105                         break;
 106         }
 107         if (i == voices)
 108                 return 0; /* already allocated */
 109
 110         for (i = 0; i < ARRAY_SIZE(epcm->voices); i++) {
 111                 if (epcm->voices[i]) {
 112                         snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
 113                         epcm->voices[i] = NULL;
 114                 }
 115         }
 116         err = snd_emu10k1_voice_alloc(epcm->emu,
 117                                       epcm->type == PLAYBACK_EMUVOICE ? EMU10K1_PCM : EMU10K1_EFX,
 118                                       voices,
 119                                       &epcm->voices[0]);
 120
 121         if (err < 0)
 122                 return err;
 123         epcm->voices[0]->epcm = epcm;
 124         if (voices > 1) {
 125                 for (i = 1; i < voices; i++) {
 126                         epcm->voices[i] = &epcm->emu->voices[epcm->voices[0]->number + i];
 127                         epcm->voices[i]->epcm = epcm;
 128                 }
 129         }
 130         if (epcm->extra == NULL) {
 131                 err = snd_emu10k1_voice_alloc(epcm->emu,
 132                                               epcm->type == PLAYBACK_EMUVOICE ? EMU10K1_PCM : EMU10K1_EFX,
 133                                               1,
 134                                               &epcm->extra);
 135                 if (err < 0) {
 136                         /*
 137                         dev_dbg(emu->card->dev, "pcm_channel_alloc: "
 138                                "failed extra: voices=%d, frame=%d\n",
 139                                voices, frame);
 140                         */
 141                         for (i = 0; i < voices; i++) {
 142                                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
 143                                 epcm->voices[i] = NULL;
 144                         }
 145                         return err;
 146                 }
 147                 epcm->extra->epcm = epcm;
 148                 epcm->extra->interrupt = snd_emu10k1_pcm_interrupt;
 149         }
 150         return 0;
 151 }
 152
 153 static const unsigned int capture_period_sizes[31] = {
 154         384,    448,    512,    640,
 155         384*2,  448*2,  512*2,  640*2,
 156         384*4,  448*4,  512*4,  640*4,
 157         384*8,  448*8,  512*8,  640*8,
 158         384*16, 448*16, 512*16, 640*16,
 159         384*32, 448*32, 512*32, 640*32,
 160         384*64, 448*64, 512*64, 640*64,
 161         384*128,448*128,512*128
 162 };
 163
 164 static const struct snd_pcm_hw_constraint_list hw_constraints_capture_period_sizes = {
 165         .count = 31,
 166         .list = capture_period_sizes,
 167         .mask = 0
 168 };
 169
 170 static const unsigned int capture_rates[8] = {
 171         8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000
 172 };
 173
 174 static const struct snd_pcm_hw_constraint_list hw_constraints_capture_rates = {
 175         .count = 8,
 176         .list = capture_rates,
 177         .mask = 0
 178 };
 179
 180 static unsigned int snd_emu10k1_capture_rate_reg(unsigned int rate)
 181 {
 182         switch (rate) {
 183         case 8000:      return ADCCR_SAMPLERATE_8;
 184         case 11025:     return ADCCR_SAMPLERATE_11;
 185         case 16000:     return ADCCR_SAMPLERATE_16;
 186         case 22050:     return ADCCR_SAMPLERATE_22;
 187         case 24000:     return ADCCR_SAMPLERATE_24;
 188         case 32000:     return ADCCR_SAMPLERATE_32;
 189         case 44100:     return ADCCR_SAMPLERATE_44;
 190         case 48000:     return ADCCR_SAMPLERATE_48;
 191         default:
 192                         snd_BUG();
 193                         return ADCCR_SAMPLERATE_8;
 194         }
 195 }
 196
 197 static unsigned int snd_emu10k1_audigy_capture_rate_reg(unsigned int rate)
 198 {
 199         switch (rate) {
 200         case 8000:      return A_ADCCR_SAMPLERATE_8;
 201         case 11025:     return A_ADCCR_SAMPLERATE_11;
 202         case 12000:     return A_ADCCR_SAMPLERATE_12; /* really supported? */
 203         case 16000:     return ADCCR_SAMPLERATE_16;
 204         case 22050:     return ADCCR_SAMPLERATE_22;
 205         case 24000:     return ADCCR_SAMPLERATE_24;
 206         case 32000:     return ADCCR_SAMPLERATE_32;
 207         case 44100:     return ADCCR_SAMPLERATE_44;
 208         case 48000:     return ADCCR_SAMPLERATE_48;
 209         default:
 210                         snd_BUG();
 211                         return A_ADCCR_SAMPLERATE_8;
 212         }
 213 }
 214
 215 static unsigned int emu10k1_calc_pitch_target(unsigned int rate)
 216 {
 217         unsigned int pitch_target;
 218
 219         pitch_target = (rate << 8) / 375;
 220         pitch_target = (pitch_target >> 1) + (pitch_target & 1);
 221         return pitch_target;
 222 }
 223
 224 #define PITCH_48000 0x00004000
 225 #define PITCH_96000 0x00008000
 226 #define PITCH_85000 0x00007155
 227 #define PITCH_80726 0x00006ba2
 228 #define PITCH_67882 0x00005a82
 229 #define PITCH_57081 0x00004c1c
 230
 231 static unsigned int emu10k1_select_interprom(unsigned int pitch_target)
 232 {
 233         if (pitch_target == PITCH_48000)
 234                 return CCCA_INTERPROM_0;
 235         else if (pitch_target < PITCH_48000)
 236                 return CCCA_INTERPROM_1;
 237         else if (pitch_target >= PITCH_96000)
 238                 return CCCA_INTERPROM_0;
 239         else if (pitch_target >= PITCH_85000)
 240                 return CCCA_INTERPROM_6;
 241         else if (pitch_target >= PITCH_80726)
 242                 return CCCA_INTERPROM_5;
 243         else if (pitch_target >= PITCH_67882)
 244                 return CCCA_INTERPROM_4;
 245         else if (pitch_target >= PITCH_57081)
 246                 return CCCA_INTERPROM_3;
 247         else
 248                 return CCCA_INTERPROM_2;
 249 }
 250
 251 /*
 252  * calculate cache invalidate size
 253  *
 254  * stereo: channel is stereo
 255  * w_16: using 16bit samples
 256  *
 257  * returns: cache invalidate size in samples
 258  */
 259 static inline int emu10k1_ccis(int stereo, int w_16)
 260 {
 261         if (w_16) {
 262                 return stereo ? 24 : 26;
 263         } else {
 264                 return stereo ? 24*2 : 26*2;
 265         }
 266 }
 267
 268 static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu,
 269                                        int master, int extra,
 270                                        struct snd_emu10k1_voice *evoice,
 271                                        unsigned int start_addr,
 272                                        unsigned int end_addr,
 273                                        struct snd_emu10k1_pcm_mixer *mix)
 274 {
 275         struct snd_pcm_substream *substream = evoice->epcm->substream;
 276         struct snd_pcm_runtime *runtime = substream->runtime;
 277         unsigned int silent_page, tmp;
 278         int voice, stereo, w_16;
 279         unsigned char send_amount[8];
 280         unsigned char send_routing[8];
 281         unsigned long flags;
 282         unsigned int pitch_target;
 283         unsigned int ccis;
 284
 285         voice = evoice->number;
 286         stereo = runtime->channels == 2;
 287         w_16 = snd_pcm_format_width(runtime->format) == 16;
 288
 289         if (!extra && stereo) {
 290                 start_addr >>= 1;
 291                 end_addr >>= 1;
 292         }
 293         if (w_16) {
 294                 start_addr >>= 1;
 295                 end_addr >>= 1;
 296         }
 297
 298         spin_lock_irqsave(&emu->reg_lock, flags);
 299
 300         /* volume parameters */
 301         if (extra) {
 302                 memset(send_routing, 0, sizeof(send_routing));
 303                 send_routing[0] = 0;
 304                 send_routing[1] = 1;
 305                 send_routing[2] = 2;
 306                 send_routing[3] = 3;
 307                 memset(send_amount, 0, sizeof(send_amount));
 308         } else {
 309                 /* mono, left, right (master voice = left) */
 310                 tmp = stereo ? (master ? 1 : 2) : 0;
 311                 memcpy(send_routing, &mix->send_routing[tmp][0], 8);
 312                 memcpy(send_amount, &mix->send_volume[tmp][0], 8);
 313         }
 314
 315         ccis = emu10k1_ccis(stereo, w_16);
 316
 317         if (master) {
 318                 evoice->epcm->ccca_start_addr = start_addr + ccis;
 319                 if (extra) {
 320                         start_addr += ccis;
 321                         end_addr += ccis + emu->delay_pcm_irq;
 322                 }
 323                 if (stereo && !extra) {
 324                         snd_emu10k1_ptr_write(emu, CPF, voice, CPF_STEREO_MASK);
 325                         snd_emu10k1_ptr_write(emu, CPF, (voice + 1), CPF_STEREO_MASK);
 326                 } else {
 327                         snd_emu10k1_ptr_write(emu, CPF, voice, 0);
 328                 }
 329         }
 330
 331         /* setup routing */
 332         if (emu->audigy) {
 333                 snd_emu10k1_ptr_write(emu, A_FXRT1, voice,
 334                                       snd_emu10k1_compose_audigy_fxrt1(send_routing));
 335                 snd_emu10k1_ptr_write(emu, A_FXRT2, voice,
 336                                       snd_emu10k1_compose_audigy_fxrt2(send_routing));
 337                 snd_emu10k1_ptr_write(emu, A_SENDAMOUNTS, voice,
 338                                       ((unsigned int)send_amount[4] << 24) |
 339                                       ((unsigned int)send_amount[5] << 16) |
 340                                       ((unsigned int)send_amount[6] << 8) |
 341                                       (unsigned int)send_amount[7]);
 342         } else
 343                 snd_emu10k1_ptr_write(emu, FXRT, voice,
 344                                       snd_emu10k1_compose_send_routing(send_routing));
 345         /* Stop CA */
 346         /* Assumption that PT is already 0 so no harm overwriting */
 347         snd_emu10k1_ptr_write(emu, PTRX, voice, (send_amount[0] << 8) | send_amount[1]);
 348         snd_emu10k1_ptr_write(emu, DSL, voice, end_addr | (send_amount[3] << 24));
 349         snd_emu10k1_ptr_write(emu, PSST, voice,
 350                         (start_addr + (extra ? emu->delay_pcm_irq : 0)) |
 351                         (send_amount[2] << 24));
 352         if (emu->card_capabilities->emu_model)
 353                 pitch_target = PITCH_48000; /* Disable interpolators on emu1010 card */
 354         else
 355                 pitch_target = emu10k1_calc_pitch_target(runtime->rate);
 356         if (extra)
 357                 snd_emu10k1_ptr_write(emu, CCCA, voice, start_addr |
 358                               emu10k1_select_interprom(pitch_target) |
 359                               (w_16 ? 0 : CCCA_8BITSELECT));
 360         else
 361                 snd_emu10k1_ptr_write(emu, CCCA, voice, (start_addr + ccis) |
 362                               emu10k1_select_interprom(pitch_target) |
 363                               (w_16 ? 0 : CCCA_8BITSELECT));
 364         /* Clear filter delay memory */
 365         snd_emu10k1_ptr_write(emu, Z1, voice, 0);
 366         snd_emu10k1_ptr_write(emu, Z2, voice, 0);
 367         /* invalidate maps */
 368         silent_page = ((unsigned int)emu->silent_page.addr << emu->address_mode) | (emu->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0);
 369         snd_emu10k1_ptr_write(emu, MAPA, voice, silent_page);
 370         snd_emu10k1_ptr_write(emu, MAPB, voice, silent_page);
 371         /* modulation envelope */
 372         snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
 373         snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
 374         snd_emu10k1_ptr_write(emu, ATKHLDM, voice, 0);
 375         snd_emu10k1_ptr_write(emu, DCYSUSM, voice, 0x007f);
 376         snd_emu10k1_ptr_write(emu, LFOVAL1, voice, 0x8000);
 377         snd_emu10k1_ptr_write(emu, LFOVAL2, voice, 0x8000);
 378         snd_emu10k1_ptr_write(emu, FMMOD, voice, 0);
 379         snd_emu10k1_ptr_write(emu, TREMFRQ, voice, 0);
 380         snd_emu10k1_ptr_write(emu, FM2FRQ2, voice, 0);
 381         snd_emu10k1_ptr_write(emu, ENVVAL, voice, 0x8000);
 382         /* volume envelope */
 383         snd_emu10k1_ptr_write(emu, ATKHLDV, voice, 0x7f7f);
 384         snd_emu10k1_ptr_write(emu, ENVVOL, voice, 0x0000);
 385         /* filter envelope */
 386         snd_emu10k1_ptr_write(emu, PEFE_FILTERAMOUNT, voice, 0x7f);
 387         /* pitch envelope */
 388         snd_emu10k1_ptr_write(emu, PEFE_PITCHAMOUNT, voice, 0);
 389
 390         spin_unlock_irqrestore(&emu->reg_lock, flags);
 391 }
 392
 393 static int snd_emu10k1_playback_hw_params(struct snd_pcm_substream *substream,
 394                                           struct snd_pcm_hw_params *hw_params)
 395 {
 396         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 397         struct snd_pcm_runtime *runtime = substream->runtime;
 398         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 399         size_t alloc_size;
 400         int err;
 401
 402         if ((err = snd_emu10k1_pcm_channel_alloc(epcm, params_channels(hw_params))) < 0)
 403                 return err;
 404
 405         alloc_size = params_buffer_bytes(hw_params);
 406         if (emu->iommu_workaround)
 407                 alloc_size += EMUPAGESIZE;
 408         err = snd_pcm_lib_malloc_pages(substream, alloc_size);
 409         if (err < 0)
 410                 return err;
 411         if (emu->iommu_workaround && runtime->dma_bytes >= EMUPAGESIZE)
 412                 runtime->dma_bytes -= EMUPAGESIZE;
 413         if (err > 0) {  /* change */
 414                 int mapped;
 415                 if (epcm->memblk != NULL)
 416                         snd_emu10k1_free_pages(emu, epcm->memblk);
 417                 epcm->memblk = snd_emu10k1_alloc_pages(emu, substream);
 418                 epcm->start_addr = 0;
 419                 if (! epcm->memblk)
 420                         return -ENOMEM;
 421                 mapped = ((struct snd_emu10k1_memblk *)epcm->memblk)->mapped_page;
 422                 if (mapped < 0)
 423                         return -ENOMEM;
 424                 epcm->start_addr = mapped << PAGE_SHIFT;
 425         }
 426         return 0;
 427 }
 428
 429 static int snd_emu10k1_playback_hw_free(struct snd_pcm_substream *substream)
 430 {
 431         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 432         struct snd_pcm_runtime *runtime = substream->runtime;
 433         struct snd_emu10k1_pcm *epcm;
 434
 435         if (runtime->private_data == NULL)
 436                 return 0;
 437         epcm = runtime->private_data;
 438         if (epcm->extra) {
 439                 snd_emu10k1_voice_free(epcm->emu, epcm->extra);
 440                 epcm->extra = NULL;
 441         }
 442         if (epcm->voices[1]) {
 443                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
 444                 epcm->voices[1] = NULL;
 445         }
 446         if (epcm->voices[0]) {
 447                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[0]);
 448                 epcm->voices[0] = NULL;
 449         }
 450         if (epcm->memblk) {
 451                 snd_emu10k1_free_pages(emu, epcm->memblk);
 452                 epcm->memblk = NULL;
 453                 epcm->start_addr = 0;
 454         }
 455         snd_pcm_lib_free_pages(substream);
 456         return 0;
 457 }
 458
 459 static int snd_emu10k1_efx_playback_hw_free(struct snd_pcm_substream *substream)
 460 {
 461         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 462         struct snd_pcm_runtime *runtime = substream->runtime;
 463         struct snd_emu10k1_pcm *epcm;
 464         int i;
 465
 466         if (runtime->private_data == NULL)
 467                 return 0;
 468         epcm = runtime->private_data;
 469         if (epcm->extra) {
 470                 snd_emu10k1_voice_free(epcm->emu, epcm->extra);
 471                 epcm->extra = NULL;
 472         }
 473         for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
 474                 if (epcm->voices[i]) {
 475                         snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
 476                         epcm->voices[i] = NULL;
 477                 }
 478         }
 479         if (epcm->memblk) {
 480                 snd_emu10k1_free_pages(emu, epcm->memblk);
 481                 epcm->memblk = NULL;
 482                 epcm->start_addr = 0;
 483         }
 484         snd_pcm_lib_free_pages(substream);
 485         return 0;
 486 }
 487
 488 static int snd_emu10k1_playback_prepare(struct snd_pcm_substream *substream)
 489 {
 490         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 491         struct snd_pcm_runtime *runtime = substream->runtime;
 492         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 493         unsigned int start_addr, end_addr;
 494
 495         start_addr = epcm->start_addr;
 496         end_addr = snd_pcm_lib_period_bytes(substream);
 497         if (runtime->channels == 2) {
 498                 start_addr >>= 1;
 499                 end_addr >>= 1;
 500         }
 501         end_addr += start_addr;
 502         snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
 503                                    start_addr, end_addr, NULL);
 504         start_addr = epcm->start_addr;
 505         end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream);
 506         snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
 507                                    start_addr, end_addr,
 508                                    &emu->pcm_mixer[substream->number]);
 509         if (epcm->voices[1])
 510                 snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[1],
 511                                            start_addr, end_addr,
 512                                            &emu->pcm_mixer[substream->number]);
 513         return 0;
 514 }
 515
 516 static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream)
 517 {
 518         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 519         struct snd_pcm_runtime *runtime = substream->runtime;
 520         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 521         unsigned int start_addr, end_addr;
 522         unsigned int channel_size;
 523         int i;
 524
 525         start_addr = epcm->start_addr;
 526         end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream);
 527
 528         /*
 529          * the kX driver leaves some space between voices
 530          */
 531         channel_size = ( end_addr - start_addr ) / NUM_EFX_PLAYBACK;
 532
 533         snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
 534                                    start_addr, start_addr + (channel_size / 2), NULL);
 535
 536         /* only difference with the master voice is we use it for the pointer */
 537         snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
 538                                    start_addr, start_addr + channel_size,
 539                                    &emu->efx_pcm_mixer[0]);
 540
 541         start_addr += channel_size;
 542         for (i = 1; i < NUM_EFX_PLAYBACK; i++) {
 543                 snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[i],
 544                                            start_addr, start_addr + channel_size,
 545                                            &emu->efx_pcm_mixer[i]);
 546                 start_addr += channel_size;
 547         }
 548
 549         return 0;
 550 }
 551
 552 static const struct snd_pcm_hardware snd_emu10k1_efx_playback =
 553 {
 554         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_NONINTERLEAVED |
 555                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 556                                  SNDRV_PCM_INFO_RESUME |
 557                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
 558         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 559         .rates =                SNDRV_PCM_RATE_48000,
 560         .rate_min =             48000,
 561         .rate_max =             48000,
 562         .channels_min =         NUM_EFX_PLAYBACK,
 563         .channels_max =         NUM_EFX_PLAYBACK,
 564         .buffer_bytes_max =     (64*1024),
 565         .period_bytes_min =     64,
 566         .period_bytes_max =     (64*1024),
 567         .periods_min =          2,
 568         .periods_max =          2,
 569         .fifo_size =            0,
 570 };
 571
 572 static int snd_emu10k1_capture_hw_params(struct snd_pcm_substream *substream,
 573                                          struct snd_pcm_hw_params *hw_params)
 574 {
 575         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 576 }
 577
 578 static int snd_emu10k1_capture_hw_free(struct snd_pcm_substream *substream)
 579 {
 580         return snd_pcm_lib_free_pages(substream);
 581 }
 582
 583 static int snd_emu10k1_capture_prepare(struct snd_pcm_substream *substream)
 584 {
 585         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 586         struct snd_pcm_runtime *runtime = substream->runtime;
 587         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 588         int idx;
 589
 590         /* zeroing the buffer size will stop capture */
 591         snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
 592         switch (epcm->type) {
 593         case CAPTURE_AC97ADC:
 594                 snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
 595                 break;
 596         case CAPTURE_EFX:
 597                 if (emu->audigy) {
 598                         snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
 599                         snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
 600                 } else
 601                         snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
 602                 break;
 603         default:
 604                 break;
 605         }
 606         snd_emu10k1_ptr_write(emu, epcm->capture_ba_reg, 0, runtime->dma_addr);
 607         epcm->capture_bufsize = snd_pcm_lib_buffer_bytes(substream);
 608         epcm->capture_bs_val = 0;
 609         for (idx = 0; idx < 31; idx++) {
 610                 if (capture_period_sizes[idx] == epcm->capture_bufsize) {
 611                         epcm->capture_bs_val = idx + 1;
 612                         break;
 613                 }
 614         }
 615         if (epcm->capture_bs_val == 0) {
 616                 snd_BUG();
 617                 epcm->capture_bs_val++;
 618         }
 619         if (epcm->type == CAPTURE_AC97ADC) {
 620                 epcm->capture_cr_val = emu->audigy ? A_ADCCR_LCHANENABLE : ADCCR_LCHANENABLE;
 621                 if (runtime->channels > 1)
 622                         epcm->capture_cr_val |= emu->audigy ? A_ADCCR_RCHANENABLE : ADCCR_RCHANENABLE;
 623                 epcm->capture_cr_val |= emu->audigy ?
 624                         snd_emu10k1_audigy_capture_rate_reg(runtime->rate) :
 625                         snd_emu10k1_capture_rate_reg(runtime->rate);
 626         }
 627         return 0;
 628 }
 629
 630 static void snd_emu10k1_playback_invalidate_cache(struct snd_emu10k1 *emu, int extra, struct snd_emu10k1_voice *evoice)
 631 {
 632         struct snd_pcm_runtime *runtime;
 633         unsigned int voice, stereo, i, ccis, cra = 64, cs, sample;
 634
 635         if (evoice == NULL)
 636                 return;
 637         runtime = evoice->epcm->substream->runtime;
 638         voice = evoice->number;
 639         stereo = (!extra && runtime->channels == 2);
 640         sample = snd_pcm_format_width(runtime->format) == 16 ? 0 : 0x80808080;
 641         ccis = emu10k1_ccis(stereo, sample == 0);
 642         /* set cs to 2 * number of cache registers beside the invalidated */
 643         cs = (sample == 0) ? (32-ccis) : (64-ccis+1) >> 1;
 644         if (cs > 16) cs = 16;
 645         for (i = 0; i < cs; i++) {
 646                 snd_emu10k1_ptr_write(emu, CD0 + i, voice, sample);
 647                 if (stereo) {
 648                         snd_emu10k1_ptr_write(emu, CD0 + i, voice + 1, sample);
 649                 }
 650         }
 651         /* reset cache */
 652         snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, 0);
 653         snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice, cra);
 654         if (stereo) {
 655                 snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice + 1, 0);
 656                 snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice + 1, cra);
 657         }
 658         /* fill cache */
 659         snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, ccis);
 660         if (stereo) {
 661                 snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice+1, ccis);
 662         }
 663 }
 664
 665 static void snd_emu10k1_playback_prepare_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice,
 666                                                int master, int extra,
 667                                                struct snd_emu10k1_pcm_mixer *mix)
 668 {
 669         struct snd_pcm_substream *substream;
 670         struct snd_pcm_runtime *runtime;
 671         unsigned int attn, vattn;
 672         unsigned int voice, tmp;
 673
 674         if (evoice == NULL)     /* skip second voice for mono */
 675                 return;
 676         substream = evoice->epcm->substream;
 677         runtime = substream->runtime;
 678         voice = evoice->number;
 679
 680         attn = extra ? 0 : 0x00ff;
 681         tmp = runtime->channels == 2 ? (master ? 1 : 2) : 0;
 682         vattn = mix != NULL ? (mix->attn[tmp] << 16) : 0;
 683         snd_emu10k1_ptr_write(emu, IFATN, voice, attn);
 684         snd_emu10k1_ptr_write(emu, VTFT, voice, vattn | 0xffff);
 685         snd_emu10k1_ptr_write(emu, CVCF, voice, vattn | 0xffff);
 686         snd_emu10k1_ptr_write(emu, DCYSUSV, voice, 0x7f7f);
 687         snd_emu10k1_voice_clear_loop_stop(emu, voice);
 688 }
 689
 690 static void snd_emu10k1_playback_trigger_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice, int master, int extra)
 691 {
 692         struct snd_pcm_substream *substream;
 693         struct snd_pcm_runtime *runtime;
 694         unsigned int voice, pitch, pitch_target;
 695
 696         if (evoice == NULL)     /* skip second voice for mono */
 697                 return;
 698         substream = evoice->epcm->substream;
 699         runtime = substream->runtime;
 700         voice = evoice->number;
 701
 702         pitch = snd_emu10k1_rate_to_pitch(runtime->rate) >> 8;
 703         if (emu->card_capabilities->emu_model)
 704                 pitch_target = PITCH_48000; /* Disable interpolators on emu1010 card */
 705         else
 706                 pitch_target = emu10k1_calc_pitch_target(runtime->rate);
 707         snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, pitch_target);
 708         if (master || evoice->epcm->type == PLAYBACK_EFX)
 709                 snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, pitch_target);
 710         snd_emu10k1_ptr_write(emu, IP, voice, pitch);
 711         if (extra)
 712                 snd_emu10k1_voice_intr_enable(emu, voice);
 713 }
 714
 715 static void snd_emu10k1_playback_stop_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice)
 716 {
 717         unsigned int voice;
 718
 719         if (evoice == NULL)
 720                 return;
 721         voice = evoice->number;
 722         snd_emu10k1_voice_intr_disable(emu, voice);
 723         snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, 0);
 724         snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, 0);
 725         snd_emu10k1_ptr_write(emu, IFATN, voice, 0xffff);
 726         snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
 727         snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
 728         snd_emu10k1_ptr_write(emu, IP, voice, 0);
 729 }
 730
 731 static inline void snd_emu10k1_playback_mangle_extra(struct snd_emu10k1 *emu,
 732                 struct snd_emu10k1_pcm *epcm,
 733                 struct snd_pcm_substream *substream,
 734                 struct snd_pcm_runtime *runtime)
 735 {
 736         unsigned int ptr, period_pos;
 737
 738         /* try to sychronize the current position for the interrupt
 739            source voice */
 740         period_pos = runtime->status->hw_ptr - runtime->hw_ptr_interrupt;
 741         period_pos %= runtime->period_size;
 742         ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->extra->number);
 743         ptr &= ~0x00ffffff;
 744         ptr |= epcm->ccca_start_addr + period_pos;
 745         snd_emu10k1_ptr_write(emu, CCCA, epcm->extra->number, ptr);
 746 }
 747
 748 static int snd_emu10k1_playback_trigger(struct snd_pcm_substream *substream,
 749                                         int cmd)
 750 {
 751         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 752         struct snd_pcm_runtime *runtime = substream->runtime;
 753         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 754         struct snd_emu10k1_pcm_mixer *mix;
 755         int result = 0;
 756
 757         /*
 758         dev_dbg(emu->card->dev,
 759                 "trigger - emu10k1 = 0x%x, cmd = %i, pointer = %i\n",
 760                (int)emu, cmd, substream->ops->pointer(substream))
 761         */
 762         spin_lock(&emu->reg_lock);
 763         switch (cmd) {
 764         case SNDRV_PCM_TRIGGER_START:
 765                 snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra);     /* do we need this? */
 766                 snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[0]);
 767                 /* fall through */
 768         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 769         case SNDRV_PCM_TRIGGER_RESUME:
 770                 if (cmd == SNDRV_PCM_TRIGGER_PAUSE_RELEASE)
 771                         snd_emu10k1_playback_mangle_extra(emu, epcm, substream, runtime);
 772                 mix = &emu->pcm_mixer[substream->number];
 773                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 1, 0, mix);
 774                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[1], 0, 0, mix);
 775                 snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
 776                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 1, 0);
 777                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[1], 0, 0);
 778                 snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
 779                 epcm->running = 1;
 780                 break;
 781         case SNDRV_PCM_TRIGGER_STOP:
 782         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 783         case SNDRV_PCM_TRIGGER_SUSPEND:
 784                 epcm->running = 0;
 785                 snd_emu10k1_playback_stop_voice(emu, epcm->voices[0]);
 786                 snd_emu10k1_playback_stop_voice(emu, epcm->voices[1]);
 787                 snd_emu10k1_playback_stop_voice(emu, epcm->extra);
 788                 break;
 789         default:
 790                 result = -EINVAL;
 791                 break;
 792         }
 793         spin_unlock(&emu->reg_lock);
 794         return result;
 795 }
 796
 797 static int snd_emu10k1_capture_trigger(struct snd_pcm_substream *substream,
 798                                        int cmd)
 799 {
 800         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 801         struct snd_pcm_runtime *runtime = substream->runtime;
 802         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 803         int result = 0;
 804
 805         spin_lock(&emu->reg_lock);
 806         switch (cmd) {
 807         case SNDRV_PCM_TRIGGER_START:
 808         case SNDRV_PCM_TRIGGER_RESUME:
 809                 /* hmm this should cause full and half full interrupt to be raised? */
 810                 outl(epcm->capture_ipr, emu->port + IPR);
 811                 snd_emu10k1_intr_enable(emu, epcm->capture_inte);
 812                 /*
 813                 dev_dbg(emu->card->dev, "adccr = 0x%x, adcbs = 0x%x\n",
 814                        epcm->adccr, epcm->adcbs);
 815                 */
 816                 switch (epcm->type) {
 817                 case CAPTURE_AC97ADC:
 818                         snd_emu10k1_ptr_write(emu, ADCCR, 0, epcm->capture_cr_val);
 819                         break;
 820                 case CAPTURE_EFX:
 821                         if (emu->audigy) {
 822                                 snd_emu10k1_ptr_write(emu, A_FXWC1, 0, epcm->capture_cr_val);
 823                                 snd_emu10k1_ptr_write(emu, A_FXWC2, 0, epcm->capture_cr_val2);
 824                                 dev_dbg(emu->card->dev,
 825                                         "cr_val=0x%x, cr_val2=0x%x\n",
 826                                         epcm->capture_cr_val,
 827                                         epcm->capture_cr_val2);
 828                         } else
 829                                 snd_emu10k1_ptr_write(emu, FXWC, 0, epcm->capture_cr_val);
 830                         break;
 831                 default:
 832                         break;
 833                 }
 834                 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, epcm->capture_bs_val);
 835                 epcm->running = 1;
 836                 epcm->first_ptr = 1;
 837                 break;
 838         case SNDRV_PCM_TRIGGER_STOP:
 839         case SNDRV_PCM_TRIGGER_SUSPEND:
 840                 epcm->running = 0;
 841                 snd_emu10k1_intr_disable(emu, epcm->capture_inte);
 842                 outl(epcm->capture_ipr, emu->port + IPR);
 843                 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
 844                 switch (epcm->type) {
 845                 case CAPTURE_AC97ADC:
 846                         snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
 847                         break;
 848                 case CAPTURE_EFX:
 849                         if (emu->audigy) {
 850                                 snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
 851                                 snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
 852                         } else
 853                                 snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
 854                         break;
 855                 default:
 856                         break;
 857                 }
 858                 break;
 859         default:
 860                 result = -EINVAL;
 861         }
 862         spin_unlock(&emu->reg_lock);
 863         return result;
 864 }
 865
 866 static snd_pcm_uframes_t snd_emu10k1_playback_pointer(struct snd_pcm_substream *substream)
 867 {
 868         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 869         struct snd_pcm_runtime *runtime = substream->runtime;
 870         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 871         unsigned int ptr;
 872
 873         if (!epcm->running)
 874                 return 0;
 875         ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff;
 876 #if 0   /* Perex's code */
 877         ptr += runtime->buffer_size;
 878         ptr -= epcm->ccca_start_addr;
 879         ptr %= runtime->buffer_size;
 880 #else   /* EMU10K1 Open Source code from Creative */
 881         if (ptr < epcm->ccca_start_addr)
 882                 ptr += runtime->buffer_size - epcm->ccca_start_addr;
 883         else {
 884                 ptr -= epcm->ccca_start_addr;
 885                 if (ptr >= runtime->buffer_size)
 886                         ptr -= runtime->buffer_size;
 887         }
 888 #endif
 889         /*
 890         dev_dbg(emu->card->dev,
 891                "ptr = 0x%lx, buffer_size = 0x%lx, period_size = 0x%lx\n",
 892                (long)ptr, (long)runtime->buffer_size,
 893                (long)runtime->period_size);
 894         */
 895         return ptr;
 896 }
 897
 898
 899 static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream,
 900                                         int cmd)
 901 {
 902         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 903         struct snd_pcm_runtime *runtime = substream->runtime;
 904         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 905         int i;
 906         int result = 0;
 907
 908         spin_lock(&emu->reg_lock);
 909         switch (cmd) {
 910         case SNDRV_PCM_TRIGGER_START:
 911                 /* prepare voices */
 912                 for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
 913                         snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[i]);
 914                 }
 915                 snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra);
 916
 917                 /* fall through */
 918         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 919         case SNDRV_PCM_TRIGGER_RESUME:
 920                 snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
 921                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 0, 0,
 922                                                    &emu->efx_pcm_mixer[0]);
 923                 for (i = 1; i < NUM_EFX_PLAYBACK; i++)
 924                         snd_emu10k1_playback_prepare_voice(emu, epcm->voices[i], 0, 0,
 925                                                            &emu->efx_pcm_mixer[i]);
 926                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 0, 0);
 927                 snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
 928                 for (i = 1; i < NUM_EFX_PLAYBACK; i++)
 929                         snd_emu10k1_playback_trigger_voice(emu, epcm->voices[i], 0, 0);
 930                 epcm->running = 1;
 931                 break;
 932         case SNDRV_PCM_TRIGGER_SUSPEND:
 933         case SNDRV_PCM_TRIGGER_STOP:
 934         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 935                 epcm->running = 0;
 936                 for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
 937                         snd_emu10k1_playback_stop_voice(emu, epcm->voices[i]);
 938                 }
 939                 snd_emu10k1_playback_stop_voice(emu, epcm->extra);
 940                 break;
 941         default:
 942                 result = -EINVAL;
 943                 break;
 944         }
 945         spin_unlock(&emu->reg_lock);
 946         return result;
 947 }
 948
 949
 950 static snd_pcm_uframes_t snd_emu10k1_capture_pointer(struct snd_pcm_substream *substream)
 951 {
 952         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 953         struct snd_pcm_runtime *runtime = substream->runtime;
 954         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 955         unsigned int ptr;
 956
 957         if (!epcm->running)
 958                 return 0;
 959         if (epcm->first_ptr) {
 960                 udelay(50);     /* hack, it takes awhile until capture is started */
 961                 epcm->first_ptr = 0;
 962         }
 963         ptr = snd_emu10k1_ptr_read(emu, epcm->capture_idx_reg, 0) & 0x0000ffff;
 964         return bytes_to_frames(runtime, ptr);
 965 }
 966
 967 /*
 968  *  Playback support device description
 969  */
 970
 971 static const struct snd_pcm_hardware snd_emu10k1_playback =
 972 {
 973         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 974                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 975                                  SNDRV_PCM_INFO_RESUME |
 976                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
 977         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 978         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_96000,
 979         .rate_min =             4000,
 980         .rate_max =             96000,
 981         .channels_min =         1,
 982         .channels_max =         2,
 983         .buffer_bytes_max =     (128*1024),
 984         .period_bytes_min =     64,
 985         .period_bytes_max =     (128*1024),
 986         .periods_min =          1,
 987         .periods_max =          1024,
 988         .fifo_size =            0,
 989 };
 990
 991 /*
 992  *  Capture support device description
 993  */
 994
 995 static const struct snd_pcm_hardware snd_emu10k1_capture =
 996 {
 997         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 998                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 999                                  SNDRV_PCM_INFO_RESUME |
1000                                  SNDRV_PCM_INFO_MMAP_VALID),
1001         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1002         .rates =                SNDRV_PCM_RATE_8000_48000,
1003         .rate_min =             8000,
1004         .rate_max =             48000,
1005         .channels_min =         1,
1006         .channels_max =         2,
1007         .buffer_bytes_max =     (64*1024),
1008         .period_bytes_min =     384,
1009         .period_bytes_max =     (64*1024),
1010         .periods_min =          2,
1011         .periods_max =          2,
1012         .fifo_size =            0,
1013 };
1014
1015 static const struct snd_pcm_hardware snd_emu10k1_capture_efx =
1016 {
1017         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1018                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1019                                  SNDRV_PCM_INFO_RESUME |
1020                                  SNDRV_PCM_INFO_MMAP_VALID),
1021         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1022         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
1023                                  SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
1024                                  SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
1025         .rate_min =             44100,
1026         .rate_max =             192000,
1027         .channels_min =         8,
1028         .channels_max =         8,
1029         .buffer_bytes_max =     (64*1024),
1030         .period_bytes_min =     384,
1031         .period_bytes_max =     (64*1024),
1032         .periods_min =          2,
1033         .periods_max =          2,
1034         .fifo_size =            0,
1035 };
1036
1037 /*
1038  *
1039  */
1040
1041 static void snd_emu10k1_pcm_mixer_notify1(struct snd_emu10k1 *emu, struct snd_kcontrol *kctl, int idx, int activate)
1042 {
1043         struct snd_ctl_elem_id id;
1044
1045         if (! kctl)
1046                 return;
1047         if (activate)
1048                 kctl->vd[idx].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1049         else
1050                 kctl->vd[idx].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1051         snd_ctl_notify(emu->card, SNDRV_CTL_EVENT_MASK_VALUE |
1052                        SNDRV_CTL_EVENT_MASK_INFO,
1053                        snd_ctl_build_ioff(&id, kctl, idx));
1054 }
1055
1056 static void snd_emu10k1_pcm_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
1057 {
1058         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_routing, idx, activate);
1059         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_volume, idx, activate);
1060         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_attn, idx, activate);
1061 }
1062
1063 static void snd_emu10k1_pcm_efx_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
1064 {
1065         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_routing, idx, activate);
1066         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_volume, idx, activate);
1067         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_attn, idx, activate);
1068 }
1069
1070 static void snd_emu10k1_pcm_free_substream(struct snd_pcm_runtime *runtime)
1071 {
1072         kfree(runtime->private_data);
1073 }
1074
1075 static int snd_emu10k1_efx_playback_close(struct snd_pcm_substream *substream)
1076 {
1077         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1078         struct snd_emu10k1_pcm_mixer *mix;
1079         int i;
1080
1081         for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
1082                 mix = &emu->efx_pcm_mixer[i];
1083                 mix->epcm = NULL;
1084                 snd_emu10k1_pcm_efx_mixer_notify(emu, i, 0);
1085         }
1086         return 0;
1087 }
1088
1089 static int snd_emu10k1_efx_playback_open(struct snd_pcm_substream *substream)
1090 {
1091         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1092         struct snd_emu10k1_pcm *epcm;
1093         struct snd_emu10k1_pcm_mixer *mix;
1094         struct snd_pcm_runtime *runtime = substream->runtime;
1095         int i;
1096
1097         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1098         if (epcm == NULL)
1099                 return -ENOMEM;
1100         epcm->emu = emu;
1101         epcm->type = PLAYBACK_EFX;
1102         epcm->substream = substream;
1103
1104         emu->pcm_playback_efx_substream = substream;
1105
1106         runtime->private_data = epcm;
1107         runtime->private_free = snd_emu10k1_pcm_free_substream;
1108         runtime->hw = snd_emu10k1_efx_playback;
1109
1110         for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
1111                 mix = &emu->efx_pcm_mixer[i];
1112                 mix->send_routing[0][0] = i;
1113                 memset(&mix->send_volume, 0, sizeof(mix->send_volume));
1114                 mix->send_volume[0][0] = 255;
1115                 mix->attn[0] = 0xffff;
1116                 mix->epcm = epcm;
1117                 snd_emu10k1_pcm_efx_mixer_notify(emu, i, 1);
1118         }
1119         return 0;
1120 }
1121
1122 static int snd_emu10k1_playback_open(struct snd_pcm_substream *substream)
1123 {
1124         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1125         struct snd_emu10k1_pcm *epcm;
1126         struct snd_emu10k1_pcm_mixer *mix;
1127         struct snd_pcm_runtime *runtime = substream->runtime;
1128         int i, err, sample_rate;
1129
1130         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1131         if (epcm == NULL)
1132                 return -ENOMEM;
1133         epcm->emu = emu;
1134         epcm->type = PLAYBACK_EMUVOICE;
1135         epcm->substream = substream;
1136         runtime->private_data = epcm;
1137         runtime->private_free = snd_emu10k1_pcm_free_substream;
1138         runtime->hw = snd_emu10k1_playback;
1139         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
1140                 kfree(epcm);
1141                 return err;
1142         }
1143         if ((err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX)) < 0) {
1144                 kfree(epcm);
1145                 return err;
1146         }
1147         if (emu->card_capabilities->emu_model && emu->emu1010.internal_clock == 0)
1148                 sample_rate = 44100;
1149         else
1150                 sample_rate = 48000;
1151         err = snd_pcm_hw_rule_noresample(runtime, sample_rate);
1152         if (err < 0) {
1153                 kfree(epcm);
1154                 return err;
1155         }
1156         mix = &emu->pcm_mixer[substream->number];
1157         for (i = 0; i < 4; i++)
1158                 mix->send_routing[0][i] = mix->send_routing[1][i] = mix->send_routing[2][i] = i;
1159         memset(&mix->send_volume, 0, sizeof(mix->send_volume));
1160         mix->send_volume[0][0] = mix->send_volume[0][1] =
1161         mix->send_volume[1][0] = mix->send_volume[2][1] = 255;
1162         mix->attn[0] = mix->attn[1] = mix->attn[2] = 0xffff;
1163         mix->epcm = epcm;
1164         snd_emu10k1_pcm_mixer_notify(emu, substream->number, 1);
1165         return 0;
1166 }
1167
1168 static int snd_emu10k1_playback_close(struct snd_pcm_substream *substream)
1169 {
1170         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1171         struct snd_emu10k1_pcm_mixer *mix = &emu->pcm_mixer[substream->number];
1172
1173         mix->epcm = NULL;
1174         snd_emu10k1_pcm_mixer_notify(emu, substream->number, 0);
1175         return 0;
1176 }
1177
1178 static int snd_emu10k1_capture_open(struct snd_pcm_substream *substream)
1179 {
1180         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1181         struct snd_pcm_runtime *runtime = substream->runtime;
1182         struct snd_emu10k1_pcm *epcm;
1183
1184         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1185         if (epcm == NULL)
1186                 return -ENOMEM;
1187         epcm->emu = emu;
1188         epcm->type = CAPTURE_AC97ADC;
1189         epcm->substream = substream;
1190         epcm->capture_ipr = IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL;
1191         epcm->capture_inte = INTE_ADCBUFENABLE;
1192         epcm->capture_ba_reg = ADCBA;
1193         epcm->capture_bs_reg = ADCBS;
1194         epcm->capture_idx_reg = emu->audigy ? A_ADCIDX : ADCIDX;
1195         runtime->private_data = epcm;
1196         runtime->private_free = snd_emu10k1_pcm_free_substream;
1197         runtime->hw = snd_emu10k1_capture;
1198         emu->capture_interrupt = snd_emu10k1_pcm_ac97adc_interrupt;
1199         emu->pcm_capture_substream = substream;
1200         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1201         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_capture_rates);
1202         return 0;
1203 }
1204
1205 static int snd_emu10k1_capture_close(struct snd_pcm_substream *substream)
1206 {
1207         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1208
1209         emu->capture_interrupt = NULL;
1210         emu->pcm_capture_substream = NULL;
1211         return 0;
1212 }
1213
1214 static int snd_emu10k1_capture_mic_open(struct snd_pcm_substream *substream)
1215 {
1216         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1217         struct snd_emu10k1_pcm *epcm;
1218         struct snd_pcm_runtime *runtime = substream->runtime;
1219
1220         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1221         if (epcm == NULL)
1222                 return -ENOMEM;
1223         epcm->emu = emu;
1224         epcm->type = CAPTURE_AC97MIC;
1225         epcm->substream = substream;
1226         epcm->capture_ipr = IPR_MICBUFFULL|IPR_MICBUFHALFFULL;
1227         epcm->capture_inte = INTE_MICBUFENABLE;
1228         epcm->capture_ba_reg = MICBA;
1229         epcm->capture_bs_reg = MICBS;
1230         epcm->capture_idx_reg = emu->audigy ? A_MICIDX : MICIDX;
1231         substream->runtime->private_data = epcm;
1232         substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1233         runtime->hw = snd_emu10k1_capture;
1234         runtime->hw.rates = SNDRV_PCM_RATE_8000;
1235         runtime->hw.rate_min = runtime->hw.rate_max = 8000;
1236         runtime->hw.channels_min = 1;
1237         emu->capture_mic_interrupt = snd_emu10k1_pcm_ac97mic_interrupt;
1238         emu->pcm_capture_mic_substream = substream;
1239         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1240         return 0;
1241 }
1242
1243 static int snd_emu10k1_capture_mic_close(struct snd_pcm_substream *substream)
1244 {
1245         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1246
1247         emu->capture_interrupt = NULL;
1248         emu->pcm_capture_mic_substream = NULL;
1249         return 0;
1250 }
1251
1252 static int snd_emu10k1_capture_efx_open(struct snd_pcm_substream *substream)
1253 {
1254         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1255         struct snd_emu10k1_pcm *epcm;
1256         struct snd_pcm_runtime *runtime = substream->runtime;
1257         int nefx = emu->audigy ? 64 : 32;
1258         int idx;
1259
1260         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1261         if (epcm == NULL)
1262                 return -ENOMEM;
1263         epcm->emu = emu;
1264         epcm->type = CAPTURE_EFX;
1265         epcm->substream = substream;
1266         epcm->capture_ipr = IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL;
1267         epcm->capture_inte = INTE_EFXBUFENABLE;
1268         epcm->capture_ba_reg = FXBA;
1269         epcm->capture_bs_reg = FXBS;
1270         epcm->capture_idx_reg = FXIDX;
1271         substream->runtime->private_data = epcm;
1272         substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1273         runtime->hw = snd_emu10k1_capture_efx;
1274         runtime->hw.rates = SNDRV_PCM_RATE_48000;
1275         runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1276         spin_lock_irq(&emu->reg_lock);
1277         if (emu->card_capabilities->emu_model) {
1278                 /*  Nb. of channels has been increased to 16 */
1279                 /* TODO
1280                  * SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE
1281                  * SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
1282                  * SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
1283                  * SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000
1284                  * rate_min = 44100,
1285                  * rate_max = 192000,
1286                  * channels_min = 16,
1287                  * channels_max = 16,
1288                  * Need to add mixer control to fix sample rate
1289                  *
1290                  * There are 32 mono channels of 16bits each.
1291                  * 24bit Audio uses 2x channels over 16bit
1292                  * 96kHz uses 2x channels over 48kHz
1293                  * 192kHz uses 4x channels over 48kHz
1294                  * So, for 48kHz 24bit, one has 16 channels
1295                  * for 96kHz 24bit, one has 8 channels
1296                  * for 192kHz 24bit, one has 4 channels
1297                  *
1298                  */
1299 #if 1
1300                 switch (emu->emu1010.internal_clock) {
1301                 case 0:
1302                         /* For 44.1kHz */
1303                         runtime->hw.rates = SNDRV_PCM_RATE_44100;
1304                         runtime->hw.rate_min = runtime->hw.rate_max = 44100;
1305                         runtime->hw.channels_min =
1306                                 runtime->hw.channels_max = 16;
1307                         break;
1308                 case 1:
1309                         /* For 48kHz */
1310                         runtime->hw.rates = SNDRV_PCM_RATE_48000;
1311                         runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1312                         runtime->hw.channels_min =
1313                                 runtime->hw.channels_max = 16;
1314                         break;
1315                 }
1316 #endif
1317 #if 0
1318                 /* For 96kHz */
1319                 runtime->hw.rates = SNDRV_PCM_RATE_96000;
1320                 runtime->hw.rate_min = runtime->hw.rate_max = 96000;
1321                 runtime->hw.channels_min = runtime->hw.channels_max = 4;
1322 #endif
1323 #if 0
1324                 /* For 192kHz */
1325                 runtime->hw.rates = SNDRV_PCM_RATE_192000;
1326                 runtime->hw.rate_min = runtime->hw.rate_max = 192000;
1327                 runtime->hw.channels_min = runtime->hw.channels_max = 2;
1328 #endif
1329                 runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;
1330                 /* efx_voices_mask[0] is expected to be zero
1331                  * efx_voices_mask[1] is expected to have 32bits set
1332                  */
1333         } else {
1334                 runtime->hw.channels_min = runtime->hw.channels_max = 0;
1335                 for (idx = 0; idx < nefx; idx++) {
1336                         if (emu->efx_voices_mask[idx/32] & (1 << (idx%32))) {
1337                                 runtime->hw.channels_min++;
1338                                 runtime->hw.channels_max++;
1339                         }
1340                 }
1341         }
1342         epcm->capture_cr_val = emu->efx_voices_mask[0];
1343         epcm->capture_cr_val2 = emu->efx_voices_mask[1];
1344         spin_unlock_irq(&emu->reg_lock);
1345         emu->capture_efx_interrupt = snd_emu10k1_pcm_efx_interrupt;
1346         emu->pcm_capture_efx_substream = substream;
1347         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1348         return 0;
1349 }
1350
1351 static int snd_emu10k1_capture_efx_close(struct snd_pcm_substream *substream)
1352 {
1353         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1354
1355         emu->capture_interrupt = NULL;
1356         emu->pcm_capture_efx_substream = NULL;
1357         return 0;
1358 }
1359
1360 static const struct snd_pcm_ops snd_emu10k1_playback_ops = {
1361         .open =                 snd_emu10k1_playback_open,
1362         .close =                snd_emu10k1_playback_close,
1363         .ioctl =                snd_pcm_lib_ioctl,
1364         .hw_params =            snd_emu10k1_playback_hw_params,
1365         .hw_free =              snd_emu10k1_playback_hw_free,
1366         .prepare =              snd_emu10k1_playback_prepare,
1367         .trigger =              snd_emu10k1_playback_trigger,
1368         .pointer =              snd_emu10k1_playback_pointer,
1369 };
1370
1371 static const struct snd_pcm_ops snd_emu10k1_capture_ops = {
1372         .open =                 snd_emu10k1_capture_open,
1373         .close =                snd_emu10k1_capture_close,
1374         .ioctl =                snd_pcm_lib_ioctl,
1375         .hw_params =            snd_emu10k1_capture_hw_params,
1376         .hw_free =              snd_emu10k1_capture_hw_free,
1377         .prepare =              snd_emu10k1_capture_prepare,
1378         .trigger =              snd_emu10k1_capture_trigger,
1379         .pointer =              snd_emu10k1_capture_pointer,
1380 };
1381
1382 /* EFX playback */
1383 static const struct snd_pcm_ops snd_emu10k1_efx_playback_ops = {
1384         .open =                 snd_emu10k1_efx_playback_open,
1385         .close =                snd_emu10k1_efx_playback_close,
1386         .ioctl =                snd_pcm_lib_ioctl,
1387         .hw_params =            snd_emu10k1_playback_hw_params,
1388         .hw_free =              snd_emu10k1_efx_playback_hw_free,
1389         .prepare =              snd_emu10k1_efx_playback_prepare,
1390         .trigger =              snd_emu10k1_efx_playback_trigger,
1391         .pointer =              snd_emu10k1_efx_playback_pointer,
1392 };
1393
1394 int snd_emu10k1_pcm(struct snd_emu10k1 *emu, int device)
1395 {
1396         struct snd_pcm *pcm;
1397         struct snd_pcm_substream *substream;
1398         int err;
1399
1400         if ((err = snd_pcm_new(emu->card, "emu10k1", device, 32, 1, &pcm)) < 0)
1401                 return err;
1402
1403         pcm->private_data = emu;
1404
1405         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_playback_ops);
1406         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_ops);
1407
1408         pcm->info_flags = 0;
1409         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1410         strcpy(pcm->name, "ADC Capture/Standard PCM Playback");
1411         emu->pcm = pcm;
1412
1413         for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1414                 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG,
1415                                               snd_dma_pci_data(emu->pci),
1416                                               64*1024, 64*1024);
1417
1418         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substream->next)
1419                 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV,
1420                                               snd_dma_pci_data(emu->pci),
1421                                               64*1024, 64*1024);
1422
1423         return 0;
1424 }
1425
1426 int snd_emu10k1_pcm_multi(struct snd_emu10k1 *emu, int device)
1427 {
1428         struct snd_pcm *pcm;
1429         struct snd_pcm_substream *substream;
1430         int err;
1431
1432         if ((err = snd_pcm_new(emu->card, "emu10k1", device, 1, 0, &pcm)) < 0)
1433                 return err;
1434
1435         pcm->private_data = emu;
1436
1437         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_efx_playback_ops);
1438
1439         pcm->info_flags = 0;
1440         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1441         strcpy(pcm->name, "Multichannel Playback");
1442         emu->pcm_multi = pcm;
1443
1444         for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1445                 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG,
1446                                               snd_dma_pci_data(emu->pci),
1447                                               64*1024, 64*1024);
1448
1449         return 0;
1450 }
1451
1452
1453 static const struct snd_pcm_ops snd_emu10k1_capture_mic_ops = {
1454         .open =                 snd_emu10k1_capture_mic_open,
1455         .close =                snd_emu10k1_capture_mic_close,
1456         .ioctl =                snd_pcm_lib_ioctl,
1457         .hw_params =            snd_emu10k1_capture_hw_params,
1458         .hw_free =              snd_emu10k1_capture_hw_free,
1459         .prepare =              snd_emu10k1_capture_prepare,
1460         .trigger =              snd_emu10k1_capture_trigger,
1461         .pointer =              snd_emu10k1_capture_pointer,
1462 };
1463
1464 int snd_emu10k1_pcm_mic(struct snd_emu10k1 *emu, int device)
1465 {
1466         struct snd_pcm *pcm;
1467         int err;
1468
1469         if ((err = snd_pcm_new(emu->card, "emu10k1 mic", device, 0, 1, &pcm)) < 0)
1470                 return err;
1471
1472         pcm->private_data = emu;
1473
1474         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_mic_ops);
1475
1476         pcm->info_flags = 0;
1477         strcpy(pcm->name, "Mic Capture");
1478         emu->pcm_mic = pcm;
1479
1480         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1481                                               snd_dma_pci_data(emu->pci),
1482                                               64*1024, 64*1024);
1483
1484         return 0;
1485 }
1486
1487 static int snd_emu10k1_pcm_efx_voices_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1488 {
1489         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1490         int nefx = emu->audigy ? 64 : 32;
1491         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1492         uinfo->count = nefx;
1493         uinfo->value.integer.min = 0;
1494         uinfo->value.integer.max = 1;
1495         return 0;
1496 }
1497
1498 static int snd_emu10k1_pcm_efx_voices_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1499 {
1500         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1501         int nefx = emu->audigy ? 64 : 32;
1502         int idx;
1503
1504         spin_lock_irq(&emu->reg_lock);
1505         for (idx = 0; idx < nefx; idx++)
1506                 ucontrol->value.integer.value[idx] = (emu->efx_voices_mask[idx / 32] & (1 << (idx % 32))) ? 1 : 0;
1507         spin_unlock_irq(&emu->reg_lock);
1508         return 0;
1509 }
1510
1511 static int snd_emu10k1_pcm_efx_voices_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1512 {
1513         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1514         unsigned int nval[2], bits;
1515         int nefx = emu->audigy ? 64 : 32;
1516         int nefxb = emu->audigy ? 7 : 6;
1517         int change, idx;
1518
1519         nval[0] = nval[1] = 0;
1520         for (idx = 0, bits = 0; idx < nefx; idx++)
1521                 if (ucontrol->value.integer.value[idx]) {
1522                         nval[idx / 32] |= 1 << (idx % 32);
1523                         bits++;
1524                 }
1525
1526         for (idx = 0; idx < nefxb; idx++)
1527                 if (1 << idx == bits)
1528                         break;
1529
1530         if (idx >= nefxb)
1531                 return -EINVAL;
1532
1533         spin_lock_irq(&emu->reg_lock);
1534         change = (nval[0] != emu->efx_voices_mask[0]) ||
1535                 (nval[1] != emu->efx_voices_mask[1]);
1536         emu->efx_voices_mask[0] = nval[0];
1537         emu->efx_voices_mask[1] = nval[1];
1538         spin_unlock_irq(&emu->reg_lock);
1539         return change;
1540 }
1541
1542 static const struct snd_kcontrol_new snd_emu10k1_pcm_efx_voices_mask = {
1543         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1544         .name = "Captured FX8010 Outputs",
1545         .info = snd_emu10k1_pcm_efx_voices_mask_info,
1546         .get = snd_emu10k1_pcm_efx_voices_mask_get,
1547         .put = snd_emu10k1_pcm_efx_voices_mask_put
1548 };
1549
1550 static const struct snd_pcm_ops snd_emu10k1_capture_efx_ops = {
1551         .open =                 snd_emu10k1_capture_efx_open,
1552         .close =                snd_emu10k1_capture_efx_close,
1553         .ioctl =                snd_pcm_lib_ioctl,
1554         .hw_params =            snd_emu10k1_capture_hw_params,
1555         .hw_free =              snd_emu10k1_capture_hw_free,
1556         .prepare =              snd_emu10k1_capture_prepare,
1557         .trigger =              snd_emu10k1_capture_trigger,
1558         .pointer =              snd_emu10k1_capture_pointer,
1559 };
1560
1561
1562 /* EFX playback */
1563
1564 #define INITIAL_TRAM_SHIFT     14
1565 #define INITIAL_TRAM_POS(size) ((((size) / 2) - INITIAL_TRAM_SHIFT) - 1)
1566
1567 static void snd_emu10k1_fx8010_playback_irq(struct snd_emu10k1 *emu, void *private_data)
1568 {
1569         struct snd_pcm_substream *substream = private_data;
1570         snd_pcm_period_elapsed(substream);
1571 }
1572
1573 static void snd_emu10k1_fx8010_playback_tram_poke1(unsigned short *dst_left,
1574                                                    unsigned short *dst_right,
1575                                                    unsigned short *src,
1576                                                    unsigned int count,
1577                                                    unsigned int tram_shift)
1578 {
1579         /*
1580         dev_dbg(emu->card->dev,
1581                 "tram_poke1: dst_left = 0x%p, dst_right = 0x%p, "
1582                "src = 0x%p, count = 0x%x\n",
1583                dst_left, dst_right, src, count);
1584         */
1585         if ((tram_shift & 1) == 0) {
1586                 while (count--) {
1587                         *dst_left-- = *src++;
1588                         *dst_right-- = *src++;
1589                 }
1590         } else {
1591                 while (count--) {
1592                         *dst_right-- = *src++;
1593                         *dst_left-- = *src++;
1594                 }
1595         }
1596 }
1597
1598 static void fx8010_pb_trans_copy(struct snd_pcm_substream *substream,
1599                                  struct snd_pcm_indirect *rec, size_t bytes)
1600 {
1601         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1602         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1603         unsigned int tram_size = pcm->buffer_size;
1604         unsigned short *src = (unsigned short *)(substream->runtime->dma_area + rec->sw_data);
1605         unsigned int frames = bytes >> 2, count;
1606         unsigned int tram_pos = pcm->tram_pos;
1607         unsigned int tram_shift = pcm->tram_shift;
1608
1609         while (frames > tram_pos) {
1610                 count = tram_pos + 1;
1611                 snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1612                                                        (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1613                                                        src, count, tram_shift);
1614                 src += count * 2;
1615                 frames -= count;
1616                 tram_pos = (tram_size / 2) - 1;
1617                 tram_shift++;
1618         }
1619         snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1620                                                (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1621                                                src, frames, tram_shift);
1622         tram_pos -= frames;
1623         pcm->tram_pos = tram_pos;
1624         pcm->tram_shift = tram_shift;
1625 }
1626
1627 static int snd_emu10k1_fx8010_playback_transfer(struct snd_pcm_substream *substream)
1628 {
1629         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1630         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1631
1632         return snd_pcm_indirect_playback_transfer(substream, &pcm->pcm_rec,
1633                                                   fx8010_pb_trans_copy);
1634 }
1635
1636 static int snd_emu10k1_fx8010_playback_hw_params(struct snd_pcm_substream *substream,
1637                                                  struct snd_pcm_hw_params *hw_params)
1638 {
1639         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1640 }
1641
1642 static int snd_emu10k1_fx8010_playback_hw_free(struct snd_pcm_substream *substream)
1643 {
1644         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1645         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1646         unsigned int i;
1647
1648         for (i = 0; i < pcm->channels; i++)
1649                 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, 0);
1650         snd_pcm_lib_free_pages(substream);
1651         return 0;
1652 }
1653
1654 static int snd_emu10k1_fx8010_playback_prepare(struct snd_pcm_substream *substream)
1655 {
1656         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1657         struct snd_pcm_runtime *runtime = substream->runtime;
1658         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1659         unsigned int i;
1660
1661         /*
1662         dev_dbg(emu->card->dev, "prepare: etram_pages = 0x%p, dma_area = 0x%x, "
1663                "buffer_size = 0x%x (0x%x)\n",
1664                emu->fx8010.etram_pages, runtime->dma_area,
1665                runtime->buffer_size, runtime->buffer_size << 2);
1666         */
1667         memset(&pcm->pcm_rec, 0, sizeof(pcm->pcm_rec));
1668         pcm->pcm_rec.hw_buffer_size = pcm->buffer_size * 2; /* byte size */
1669         pcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1670         pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1671         pcm->tram_shift = 0;
1672         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_running, 0, 0);     /* reset */
1673         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);     /* reset */
1674         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_size, 0, runtime->buffer_size);
1675         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_ptr, 0, 0);         /* reset ptr number */
1676         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_count, 0, runtime->period_size);
1677         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_tmpcount, 0, runtime->period_size);
1678         for (i = 0; i < pcm->channels; i++)
1679                 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, (TANKMEMADDRREG_READ|TANKMEMADDRREG_ALIGN) + i * (runtime->buffer_size / pcm->channels));
1680         return 0;
1681 }
1682
1683 static int snd_emu10k1_fx8010_playback_trigger(struct snd_pcm_substream *substream, int cmd)
1684 {
1685         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1686         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1687         int result = 0;
1688
1689         spin_lock(&emu->reg_lock);
1690         switch (cmd) {
1691         case SNDRV_PCM_TRIGGER_START:
1692                 /* follow thru */
1693         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1694         case SNDRV_PCM_TRIGGER_RESUME:
1695 #ifdef EMU10K1_SET_AC3_IEC958
1696         {
1697                 int i;
1698                 for (i = 0; i < 3; i++) {
1699                         unsigned int bits;
1700                         bits = SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1701                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | SPCS_GENERATIONSTATUS |
1702                                0x00001200 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT | SPCS_NOTAUDIODATA;
1703                         snd_emu10k1_ptr_write(emu, SPCS0 + i, 0, bits);
1704                 }
1705         }
1706 #endif
1707                 result = snd_emu10k1_fx8010_register_irq_handler(emu, snd_emu10k1_fx8010_playback_irq, pcm->gpr_running, substream, &pcm->irq);
1708                 if (result < 0)
1709                         goto __err;
1710                 snd_emu10k1_fx8010_playback_transfer(substream);        /* roll the ball */
1711                 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 1);
1712                 break;
1713         case SNDRV_PCM_TRIGGER_STOP:
1714         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1715         case SNDRV_PCM_TRIGGER_SUSPEND:
1716                 snd_emu10k1_fx8010_unregister_irq_handler(emu, &pcm->irq);
1717                 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);
1718                 pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1719                 pcm->tram_shift = 0;
1720                 break;
1721         default:
1722                 result = -EINVAL;
1723                 break;
1724         }
1725       __err:
1726         spin_unlock(&emu->reg_lock);
1727         return result;
1728 }
1729
1730 static snd_pcm_uframes_t snd_emu10k1_fx8010_playback_pointer(struct snd_pcm_substream *substream)
1731 {
1732         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1733         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1734         size_t ptr; /* byte pointer */
1735
1736         if (!snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_trigger, 0))
1737                 return 0;
1738         ptr = snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_ptr, 0) << 2;
1739         return snd_pcm_indirect_playback_pointer(substream, &pcm->pcm_rec, ptr);
1740 }
1741
1742 static const struct snd_pcm_hardware snd_emu10k1_fx8010_playback =
1743 {
1744         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1745                                  SNDRV_PCM_INFO_RESUME |
1746                                  /* SNDRV_PCM_INFO_MMAP_VALID | */ SNDRV_PCM_INFO_PAUSE |
1747                                  SNDRV_PCM_INFO_SYNC_APPLPTR),
1748         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1749         .rates =                SNDRV_PCM_RATE_48000,
1750         .rate_min =             48000,
1751         .rate_max =             48000,
1752         .channels_min =         1,
1753         .channels_max =         1,
1754         .buffer_bytes_max =     (128*1024),
1755         .period_bytes_min =     1024,
1756         .period_bytes_max =     (128*1024),
1757         .periods_min =          2,
1758         .periods_max =          1024,
1759         .fifo_size =            0,
1760 };
1761
1762 static int snd_emu10k1_fx8010_playback_open(struct snd_pcm_substream *substream)
1763 {
1764         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1765         struct snd_pcm_runtime *runtime = substream->runtime;
1766         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1767
1768         runtime->hw = snd_emu10k1_fx8010_playback;
1769         runtime->hw.channels_min = runtime->hw.channels_max = pcm->channels;
1770         runtime->hw.period_bytes_max = (pcm->buffer_size * 2) / 2;
1771         spin_lock_irq(&emu->reg_lock);
1772         if (pcm->valid == 0) {
1773                 spin_unlock_irq(&emu->reg_lock);
1774                 return -ENODEV;
1775         }
1776         pcm->opened = 1;
1777         spin_unlock_irq(&emu->reg_lock);
1778         return 0;
1779 }
1780
1781 static int snd_emu10k1_fx8010_playback_close(struct snd_pcm_substream *substream)
1782 {
1783         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1784         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1785
1786         spin_lock_irq(&emu->reg_lock);
1787         pcm->opened = 0;
1788         spin_unlock_irq(&emu->reg_lock);
1789         return 0;
1790 }
1791
1792 static const struct snd_pcm_ops snd_emu10k1_fx8010_playback_ops = {
1793         .open =                 snd_emu10k1_fx8010_playback_open,
1794         .close =                snd_emu10k1_fx8010_playback_close,
1795         .ioctl =                snd_pcm_lib_ioctl,
1796         .hw_params =            snd_emu10k1_fx8010_playback_hw_params,
1797         .hw_free =              snd_emu10k1_fx8010_playback_hw_free,
1798         .prepare =              snd_emu10k1_fx8010_playback_prepare,
1799         .trigger =              snd_emu10k1_fx8010_playback_trigger,
1800         .pointer =              snd_emu10k1_fx8010_playback_pointer,
1801         .ack =                  snd_emu10k1_fx8010_playback_transfer,
1802 };
1803
1804 int snd_emu10k1_pcm_efx(struct snd_emu10k1 *emu, int device)
1805 {
1806         struct snd_pcm *pcm;
1807         struct snd_kcontrol *kctl;
1808         int err;
1809
1810         if ((err = snd_pcm_new(emu->card, "emu10k1 efx", device, 8, 1, &pcm)) < 0)
1811                 return err;
1812
1813         pcm->private_data = emu;
1814
1815         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_fx8010_playback_ops);
1816         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_efx_ops);
1817
1818         pcm->info_flags = 0;
1819         strcpy(pcm->name, "Multichannel Capture/PT Playback");
1820         emu->pcm_efx = pcm;
1821
1822         /* EFX capture - record the "FXBUS2" channels, by default we connect the EXTINs
1823          * to these
1824          */
1825
1826         /* emu->efx_voices_mask[0] = FXWC_DEFAULTROUTE_C | FXWC_DEFAULTROUTE_A; */
1827         if (emu->audigy) {
1828                 emu->efx_voices_mask[0] = 0;
1829                 if (emu->card_capabilities->emu_model)
1830                         /* Pavel Hofman - 32 voices will be used for
1831                          * capture (write mode) -
1832                          * each bit = corresponding voice
1833                          */
1834                         emu->efx_voices_mask[1] = 0xffffffff;
1835                 else
1836                         emu->efx_voices_mask[1] = 0xffff;
1837         } else {
1838                 emu->efx_voices_mask[0] = 0xffff0000;
1839                 emu->efx_voices_mask[1] = 0;
1840         }
1841         /* For emu1010, the control has to set 32 upper bits (voices)
1842          * out of the 64 bits (voices) to true for the 16-channels capture
1843          * to work correctly. Correct A_FXWC2 initial value (0xffffffff)
1844          * is already defined but the snd_emu10k1_pcm_efx_voices_mask
1845          * control can override this register's value.
1846          */
1847         kctl = snd_ctl_new1(&snd_emu10k1_pcm_efx_voices_mask, emu);
1848         if (!kctl)
1849                 return -ENOMEM;
1850         kctl->id.device = device;
1851         err = snd_ctl_add(emu->card, kctl);
1852         if (err < 0)
1853                 return err;
1854
1855         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1856                                               snd_dma_pci_data(emu->pci),
1857                                               64*1024, 64*1024);
1858
1859         return 0;
1860 }