sound/pci/emu10k1/emupcm.c

   1 /*
   2  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
   3  *                   Creative Labs, Inc.
   4  *  Routines for control of EMU10K1 chips / PCM routines
   5  *  Multichannel PCM support Copyright (c) Lee Revell <rlrevell@joe-job.com>
   6  *
   7  *  BUGS:
   8  *    --
   9  *
  10  *  TODO:
  11  *    --
  12  *
  13  *   This program is free software; you can redistribute it and/or modify
  14  *   it under the terms of the GNU General Public License as published by
  15  *   the Free Software Foundation; either version 2 of the License, or
  16  *   (at your option) any later version.
  17  *
  18  *   This program is distributed in the hope that it will be useful,
  19  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  *   GNU General Public License for more details.
  22  *
  23  *   You should have received a copy of the GNU General Public License
  24  *   along with this program; if not, write to the Free Software
  25  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  26  *
  27  */
  28
  29 #include <sound/driver.h>
  30 #include <linux/pci.h>
  31 #include <linux/delay.h>
  32 #include <linux/slab.h>
  33 #include <linux/time.h>
  34 #include <linux/init.h>
  35 #include <sound/core.h>
  36 #include <sound/emu10k1.h>
  37
  38 static void snd_emu10k1_pcm_interrupt(struct snd_emu10k1 *emu,
  39                                       struct snd_emu10k1_voice *voice)
  40 {
  41         struct snd_emu10k1_pcm *epcm;
  42
  43         if ((epcm = voice->epcm) == NULL)
  44                 return;
  45         if (epcm->substream == NULL)
  46                 return;
  47 #if 0
  48         printk("IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
  49                         epcm->substream->runtime->hw->pointer(emu, epcm->substream),
  50                         snd_pcm_lib_period_bytes(epcm->substream),
  51                         snd_pcm_lib_buffer_bytes(epcm->substream));
  52 #endif
  53         snd_pcm_period_elapsed(epcm->substream);
  54 }
  55
  56 static void snd_emu10k1_pcm_ac97adc_interrupt(struct snd_emu10k1 *emu,
  57                                               unsigned int status)
  58 {
  59 #if 0
  60         if (status & IPR_ADCBUFHALFFULL) {
  61                 if (emu->pcm_capture_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
  62                         return;
  63         }
  64 #endif
  65         snd_pcm_period_elapsed(emu->pcm_capture_substream);
  66 }
  67
  68 static void snd_emu10k1_pcm_ac97mic_interrupt(struct snd_emu10k1 *emu,
  69                                               unsigned int status)
  70 {
  71 #if 0
  72         if (status & IPR_MICBUFHALFFULL) {
  73                 if (emu->pcm_capture_mic_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
  74                         return;
  75         }
  76 #endif
  77         snd_pcm_period_elapsed(emu->pcm_capture_mic_substream);
  78 }
  79
  80 static void snd_emu10k1_pcm_efx_interrupt(struct snd_emu10k1 *emu,
  81                                           unsigned int status)
  82 {
  83 #if 0
  84         if (status & IPR_EFXBUFHALFFULL) {
  85                 if (emu->pcm_capture_efx_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
  86                         return;
  87         }
  88 #endif
  89         snd_pcm_period_elapsed(emu->pcm_capture_efx_substream);
  90 }
  91
  92 static snd_pcm_uframes_t snd_emu10k1_efx_playback_pointer(struct snd_pcm_substream *substream)
  93 {
  94         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
  95         struct snd_pcm_runtime *runtime = substream->runtime;
  96         struct snd_emu10k1_pcm *epcm = runtime->private_data;
  97         unsigned int ptr;
  98
  99         if (!epcm->running)
 100                 return 0;
 101         ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff;
 102         ptr += runtime->buffer_size;
 103         ptr -= epcm->ccca_start_addr;
 104         ptr %= runtime->buffer_size;
 105
 106         return ptr;
 107 }
 108
 109 static int snd_emu10k1_pcm_channel_alloc(struct snd_emu10k1_pcm * epcm, int voices)
 110 {
 111         int err, i;
 112
 113         if (epcm->voices[1] != NULL && voices < 2) {
 114                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
 115                 epcm->voices[1] = NULL;
 116         }
 117         for (i = 0; i < voices; i++) {
 118                 if (epcm->voices[i] == NULL)
 119                         break;
 120         }
 121         if (i == voices)
 122                 return 0; /* already allocated */
 123
 124         for (i = 0; i < ARRAY_SIZE(epcm->voices); i++) {
 125                 if (epcm->voices[i]) {
 126                         snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
 127                         epcm->voices[i] = NULL;
 128                 }
 129         }
 130         err = snd_emu10k1_voice_alloc(epcm->emu,
 131                                       epcm->type == PLAYBACK_EMUVOICE ? EMU10K1_PCM : EMU10K1_EFX,
 132                                       voices,
 133                                       &epcm->voices[0]);
 134
 135         if (err < 0)
 136                 return err;
 137         epcm->voices[0]->epcm = epcm;
 138         if (voices > 1) {
 139                 for (i = 1; i < voices; i++) {
 140                         epcm->voices[i] = &epcm->emu->voices[epcm->voices[0]->number + i];
 141                         epcm->voices[i]->epcm = epcm;
 142                 }
 143         }
 144         if (epcm->extra == NULL) {
 145                 err = snd_emu10k1_voice_alloc(epcm->emu,
 146                                               epcm->type == PLAYBACK_EMUVOICE ? EMU10K1_PCM : EMU10K1_EFX,
 147                                               1,
 148                                               &epcm->extra);
 149                 if (err < 0) {
 150                         // printk("pcm_channel_alloc: failed extra: voices=%d, frame=%d\n", voices, frame);
 151                         for (i = 0; i < voices; i++) {
 152                                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
 153                                 epcm->voices[i] = NULL;
 154                         }
 155                         return err;
 156                 }
 157                 epcm->extra->epcm = epcm;
 158                 epcm->extra->interrupt = snd_emu10k1_pcm_interrupt;
 159         }
 160         return 0;
 161 }
 162
 163 static unsigned int capture_period_sizes[31] = {
 164         384,    448,    512,    640,
 165         384*2,  448*2,  512*2,  640*2,
 166         384*4,  448*4,  512*4,  640*4,
 167         384*8,  448*8,  512*8,  640*8,
 168         384*16, 448*16, 512*16, 640*16,
 169         384*32, 448*32, 512*32, 640*32,
 170         384*64, 448*64, 512*64, 640*64,
 171         384*128,448*128,512*128
 172 };
 173
 174 static struct snd_pcm_hw_constraint_list hw_constraints_capture_period_sizes = {
 175         .count = 31,
 176         .list = capture_period_sizes,
 177         .mask = 0
 178 };
 179
 180 static unsigned int capture_rates[8] = {
 181         8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000
 182 };
 183
 184 static struct snd_pcm_hw_constraint_list hw_constraints_capture_rates = {
 185         .count = 8,
 186         .list = capture_rates,
 187         .mask = 0
 188 };
 189
 190 static unsigned int snd_emu10k1_capture_rate_reg(unsigned int rate)
 191 {
 192         switch (rate) {
 193         case 8000:      return ADCCR_SAMPLERATE_8;
 194         case 11025:     return ADCCR_SAMPLERATE_11;
 195         case 16000:     return ADCCR_SAMPLERATE_16;
 196         case 22050:     return ADCCR_SAMPLERATE_22;
 197         case 24000:     return ADCCR_SAMPLERATE_24;
 198         case 32000:     return ADCCR_SAMPLERATE_32;
 199         case 44100:     return ADCCR_SAMPLERATE_44;
 200         case 48000:     return ADCCR_SAMPLERATE_48;
 201         default:
 202                         snd_BUG();
 203                         return ADCCR_SAMPLERATE_8;
 204         }
 205 }
 206
 207 static unsigned int snd_emu10k1_audigy_capture_rate_reg(unsigned int rate)
 208 {
 209         switch (rate) {
 210         case 8000:      return A_ADCCR_SAMPLERATE_8;
 211         case 11025:     return A_ADCCR_SAMPLERATE_11;
 212         case 12000:     return A_ADCCR_SAMPLERATE_12; /* really supported? */
 213         case 16000:     return ADCCR_SAMPLERATE_16;
 214         case 22050:     return ADCCR_SAMPLERATE_22;
 215         case 24000:     return ADCCR_SAMPLERATE_24;
 216         case 32000:     return ADCCR_SAMPLERATE_32;
 217         case 44100:     return ADCCR_SAMPLERATE_44;
 218         case 48000:     return ADCCR_SAMPLERATE_48;
 219         default:
 220                         snd_BUG();
 221                         return A_ADCCR_SAMPLERATE_8;
 222         }
 223 }
 224
 225 static unsigned int emu10k1_calc_pitch_target(unsigned int rate)
 226 {
 227         unsigned int pitch_target;
 228
 229         pitch_target = (rate << 8) / 375;
 230         pitch_target = (pitch_target >> 1) + (pitch_target & 1);
 231         return pitch_target;
 232 }
 233
 234 #define PITCH_48000 0x00004000
 235 #define PITCH_96000 0x00008000
 236 #define PITCH_85000 0x00007155
 237 #define PITCH_80726 0x00006ba2
 238 #define PITCH_67882 0x00005a82
 239 #define PITCH_57081 0x00004c1c
 240
 241 static unsigned int emu10k1_select_interprom(unsigned int pitch_target)
 242 {
 243         if (pitch_target == PITCH_48000)
 244                 return CCCA_INTERPROM_0;
 245         else if (pitch_target < PITCH_48000)
 246                 return CCCA_INTERPROM_1;
 247         else if (pitch_target >= PITCH_96000)
 248                 return CCCA_INTERPROM_0;
 249         else if (pitch_target >= PITCH_85000)
 250                 return CCCA_INTERPROM_6;
 251         else if (pitch_target >= PITCH_80726)
 252                 return CCCA_INTERPROM_5;
 253         else if (pitch_target >= PITCH_67882)
 254                 return CCCA_INTERPROM_4;
 255         else if (pitch_target >= PITCH_57081)
 256                 return CCCA_INTERPROM_3;
 257         else
 258                 return CCCA_INTERPROM_2;
 259 }
 260
 261 /*
 262  * calculate cache invalidate size
 263  *
 264  * stereo: channel is stereo
 265  * w_16: using 16bit samples
 266  *
 267  * returns: cache invalidate size in samples
 268  */
 269 static inline int emu10k1_ccis(int stereo, int w_16)
 270 {
 271         if (w_16) {
 272                 return stereo ? 24 : 26;
 273         } else {
 274                 return stereo ? 24*2 : 26*2;
 275         }
 276 }
 277
 278 static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu,
 279                                        int master, int extra,
 280                                        struct snd_emu10k1_voice *evoice,
 281                                        unsigned int start_addr,
 282                                        unsigned int end_addr,
 283                                        struct snd_emu10k1_pcm_mixer *mix)
 284 {
 285         struct snd_pcm_substream *substream = evoice->epcm->substream;
 286         struct snd_pcm_runtime *runtime = substream->runtime;
 287         unsigned int silent_page, tmp;
 288         int voice, stereo, w_16;
 289         unsigned char attn, send_amount[8];
 290         unsigned char send_routing[8];
 291         unsigned long flags;
 292         unsigned int pitch_target;
 293         unsigned int ccis;
 294
 295         voice = evoice->number;
 296         stereo = runtime->channels == 2;
 297         w_16 = snd_pcm_format_width(runtime->format) == 16;
 298
 299         if (!extra && stereo) {
 300                 start_addr >>= 1;
 301                 end_addr >>= 1;
 302         }
 303         if (w_16) {
 304                 start_addr >>= 1;
 305                 end_addr >>= 1;
 306         }
 307
 308         spin_lock_irqsave(&emu->reg_lock, flags);
 309
 310         /* volume parameters */
 311         if (extra) {
 312                 attn = 0;
 313                 memset(send_routing, 0, sizeof(send_routing));
 314                 send_routing[0] = 0;
 315                 send_routing[1] = 1;
 316                 send_routing[2] = 2;
 317                 send_routing[3] = 3;
 318                 memset(send_amount, 0, sizeof(send_amount));
 319         } else {
 320                 /* mono, left, right (master voice = left) */
 321                 tmp = stereo ? (master ? 1 : 2) : 0;
 322                 memcpy(send_routing, &mix->send_routing[tmp][0], 8);
 323                 memcpy(send_amount, &mix->send_volume[tmp][0], 8);
 324         }
 325
 326         ccis = emu10k1_ccis(stereo, w_16);
 327
 328         if (master) {
 329                 evoice->epcm->ccca_start_addr = start_addr + ccis;
 330                 if (extra) {
 331                         start_addr += ccis;
 332                         end_addr += ccis;
 333                 }
 334                 if (stereo && !extra) {
 335                         snd_emu10k1_ptr_write(emu, CPF, voice, CPF_STEREO_MASK);
 336                         snd_emu10k1_ptr_write(emu, CPF, (voice + 1), CPF_STEREO_MASK);
 337                 } else {
 338                         snd_emu10k1_ptr_write(emu, CPF, voice, 0);
 339                 }
 340         }
 341
 342         // setup routing
 343         if (emu->audigy) {
 344                 snd_emu10k1_ptr_write(emu, A_FXRT1, voice,
 345                                       snd_emu10k1_compose_audigy_fxrt1(send_routing));
 346                 snd_emu10k1_ptr_write(emu, A_FXRT2, voice,
 347                                       snd_emu10k1_compose_audigy_fxrt2(send_routing));
 348                 snd_emu10k1_ptr_write(emu, A_SENDAMOUNTS, voice,
 349                                       ((unsigned int)send_amount[4] << 24) |
 350                                       ((unsigned int)send_amount[5] << 16) |
 351                                       ((unsigned int)send_amount[6] << 8) |
 352                                       (unsigned int)send_amount[7]);
 353         } else
 354                 snd_emu10k1_ptr_write(emu, FXRT, voice,
 355                                       snd_emu10k1_compose_send_routing(send_routing));
 356         // Stop CA
 357         // Assumption that PT is already 0 so no harm overwriting
 358         snd_emu10k1_ptr_write(emu, PTRX, voice, (send_amount[0] << 8) | send_amount[1]);
 359         snd_emu10k1_ptr_write(emu, DSL, voice, end_addr | (send_amount[3] << 24));
 360         snd_emu10k1_ptr_write(emu, PSST, voice, start_addr | (send_amount[2] << 24));
 361         pitch_target = emu10k1_calc_pitch_target(runtime->rate);
 362         if (extra)
 363                 snd_emu10k1_ptr_write(emu, CCCA, voice, start_addr |
 364                               emu10k1_select_interprom(pitch_target) |
 365                               (w_16 ? 0 : CCCA_8BITSELECT));
 366         else
 367                 snd_emu10k1_ptr_write(emu, CCCA, voice, (start_addr + ccis) |
 368                               emu10k1_select_interprom(pitch_target) |
 369                               (w_16 ? 0 : CCCA_8BITSELECT));
 370         // Clear filter delay memory
 371         snd_emu10k1_ptr_write(emu, Z1, voice, 0);
 372         snd_emu10k1_ptr_write(emu, Z2, voice, 0);
 373         // invalidate maps
 374         silent_page = ((unsigned int)emu->silent_page.addr << 1) | MAP_PTI_MASK;
 375         snd_emu10k1_ptr_write(emu, MAPA, voice, silent_page);
 376         snd_emu10k1_ptr_write(emu, MAPB, voice, silent_page);
 377         // modulation envelope
 378         snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
 379         snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
 380         snd_emu10k1_ptr_write(emu, ATKHLDM, voice, 0);
 381         snd_emu10k1_ptr_write(emu, DCYSUSM, voice, 0x007f);
 382         snd_emu10k1_ptr_write(emu, LFOVAL1, voice, 0x8000);
 383         snd_emu10k1_ptr_write(emu, LFOVAL2, voice, 0x8000);
 384         snd_emu10k1_ptr_write(emu, FMMOD, voice, 0);
 385         snd_emu10k1_ptr_write(emu, TREMFRQ, voice, 0);
 386         snd_emu10k1_ptr_write(emu, FM2FRQ2, voice, 0);
 387         snd_emu10k1_ptr_write(emu, ENVVAL, voice, 0x8000);
 388         // volume envelope
 389         snd_emu10k1_ptr_write(emu, ATKHLDV, voice, 0x7f7f);
 390         snd_emu10k1_ptr_write(emu, ENVVOL, voice, 0x0000);
 391         // filter envelope
 392         snd_emu10k1_ptr_write(emu, PEFE_FILTERAMOUNT, voice, 0x7f);
 393         // pitch envelope
 394         snd_emu10k1_ptr_write(emu, PEFE_PITCHAMOUNT, voice, 0);
 395
 396         spin_unlock_irqrestore(&emu->reg_lock, flags);
 397 }
 398
 399 static int snd_emu10k1_playback_hw_params(struct snd_pcm_substream *substream,
 400                                           struct snd_pcm_hw_params *hw_params)
 401 {
 402         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 403         struct snd_pcm_runtime *runtime = substream->runtime;
 404         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 405         int err;
 406
 407         if ((err = snd_emu10k1_pcm_channel_alloc(epcm, params_channels(hw_params))) < 0)
 408                 return err;
 409         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 410                 return err;
 411         if (err > 0) {  /* change */
 412                 int mapped;
 413                 if (epcm->memblk != NULL)
 414                         snd_emu10k1_free_pages(emu, epcm->memblk);
 415                 epcm->memblk = snd_emu10k1_alloc_pages(emu, substream);
 416                 epcm->start_addr = 0;
 417                 if (! epcm->memblk)
 418                         return -ENOMEM;
 419                 mapped = ((struct snd_emu10k1_memblk *)epcm->memblk)->mapped_page;
 420                 if (mapped < 0)
 421                         return -ENOMEM;
 422                 epcm->start_addr = mapped << PAGE_SHIFT;
 423         }
 424         return 0;
 425 }
 426
 427 static int snd_emu10k1_playback_hw_free(struct snd_pcm_substream *substream)
 428 {
 429         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 430         struct snd_pcm_runtime *runtime = substream->runtime;
 431         struct snd_emu10k1_pcm *epcm;
 432
 433         if (runtime->private_data == NULL)
 434                 return 0;
 435         epcm = runtime->private_data;
 436         if (epcm->extra) {
 437                 snd_emu10k1_voice_free(epcm->emu, epcm->extra);
 438                 epcm->extra = NULL;
 439         }
 440         if (epcm->voices[1]) {
 441                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
 442                 epcm->voices[1] = NULL;
 443         }
 444         if (epcm->voices[0]) {
 445                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[0]);
 446                 epcm->voices[0] = NULL;
 447         }
 448         if (epcm->memblk) {
 449                 snd_emu10k1_free_pages(emu, epcm->memblk);
 450                 epcm->memblk = NULL;
 451                 epcm->start_addr = 0;
 452         }
 453         snd_pcm_lib_free_pages(substream);
 454         return 0;
 455 }
 456
 457 static int snd_emu10k1_efx_playback_hw_free(struct snd_pcm_substream *substream)
 458 {
 459         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 460         struct snd_pcm_runtime *runtime = substream->runtime;
 461         struct snd_emu10k1_pcm *epcm;
 462         int i;
 463
 464         if (runtime->private_data == NULL)
 465                 return 0;
 466         epcm = runtime->private_data;
 467         if (epcm->extra) {
 468                 snd_emu10k1_voice_free(epcm->emu, epcm->extra);
 469                 epcm->extra = NULL;
 470         }
 471         for (i=0; i < NUM_EFX_PLAYBACK; i++) {
 472                 if (epcm->voices[i]) {
 473                         snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
 474                         epcm->voices[i] = NULL;
 475                 }
 476         }
 477         if (epcm->memblk) {
 478                 snd_emu10k1_free_pages(emu, epcm->memblk);
 479                 epcm->memblk = NULL;
 480                 epcm->start_addr = 0;
 481         }
 482         snd_pcm_lib_free_pages(substream);
 483         return 0;
 484 }
 485
 486 static int snd_emu10k1_playback_prepare(struct snd_pcm_substream *substream)
 487 {
 488         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 489         struct snd_pcm_runtime *runtime = substream->runtime;
 490         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 491         unsigned int start_addr, end_addr;
 492
 493         start_addr = epcm->start_addr;
 494         end_addr = snd_pcm_lib_period_bytes(substream);
 495         if (runtime->channels == 2) {
 496                 start_addr >>= 1;
 497                 end_addr >>= 1;
 498         }
 499         end_addr += start_addr;
 500         snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
 501                                    start_addr, end_addr, NULL);
 502         start_addr = epcm->start_addr;
 503         end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream);
 504         snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
 505                                    start_addr, end_addr,
 506                                    &emu->pcm_mixer[substream->number]);
 507         if (epcm->voices[1])
 508                 snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[1],
 509                                            start_addr, end_addr,
 510                                            &emu->pcm_mixer[substream->number]);
 511         return 0;
 512 }
 513
 514 static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream)
 515 {
 516         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 517         struct snd_pcm_runtime *runtime = substream->runtime;
 518         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 519         unsigned int start_addr, end_addr;
 520         unsigned int channel_size;
 521         int i;
 522
 523         start_addr = epcm->start_addr;
 524         end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream);
 525
 526         /*
 527          * the kX driver leaves some space between voices
 528          */
 529         channel_size = ( end_addr - start_addr ) / NUM_EFX_PLAYBACK;
 530
 531         snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
 532                                    start_addr, start_addr + (channel_size / 2), NULL);
 533
 534         /* only difference with the master voice is we use it for the pointer */
 535         snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
 536                                    start_addr, start_addr + channel_size,
 537                                    &emu->efx_pcm_mixer[0]);
 538
 539         start_addr += channel_size;
 540         for (i = 1; i < NUM_EFX_PLAYBACK; i++) {
 541                 snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[i],
 542                                            start_addr, start_addr + channel_size,
 543                                            &emu->efx_pcm_mixer[i]);
 544                 start_addr += channel_size;
 545         }
 546
 547         return 0;
 548 }
 549
 550 static struct snd_pcm_hardware snd_emu10k1_efx_playback =
 551 {
 552         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_NONINTERLEAVED |
 553                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 554                                  SNDRV_PCM_INFO_RESUME |
 555                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
 556         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 557         .rates =                SNDRV_PCM_RATE_48000,
 558         .rate_min =             48000,
 559         .rate_max =             48000,
 560         .channels_min =         NUM_EFX_PLAYBACK,
 561         .channels_max =         NUM_EFX_PLAYBACK,
 562         .buffer_bytes_max =     (64*1024),
 563         .period_bytes_min =     64,
 564         .period_bytes_max =     (64*1024),
 565         .periods_min =          2,
 566         .periods_max =          2,
 567         .fifo_size =            0,
 568 };
 569
 570 static int snd_emu10k1_capture_hw_params(struct snd_pcm_substream *substream,
 571                                          struct snd_pcm_hw_params *hw_params)
 572 {
 573         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 574 }
 575
 576 static int snd_emu10k1_capture_hw_free(struct snd_pcm_substream *substream)
 577 {
 578         return snd_pcm_lib_free_pages(substream);
 579 }
 580
 581 static int snd_emu10k1_capture_prepare(struct snd_pcm_substream *substream)
 582 {
 583         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 584         struct snd_pcm_runtime *runtime = substream->runtime;
 585         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 586         int idx;
 587
 588         /* zeroing the buffer size will stop capture */
 589         snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
 590         switch (epcm->type) {
 591         case CAPTURE_AC97ADC:
 592                 snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
 593                 break;
 594         case CAPTURE_EFX:
 595                 if (emu->audigy) {
 596                         snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
 597                         snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
 598                 } else
 599                         snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
 600                 break;
 601         default:
 602                 break;
 603         }
 604         snd_emu10k1_ptr_write(emu, epcm->capture_ba_reg, 0, runtime->dma_addr);
 605         epcm->capture_bufsize = snd_pcm_lib_buffer_bytes(substream);
 606         epcm->capture_bs_val = 0;
 607         for (idx = 0; idx < 31; idx++) {
 608                 if (capture_period_sizes[idx] == epcm->capture_bufsize) {
 609                         epcm->capture_bs_val = idx + 1;
 610                         break;
 611                 }
 612         }
 613         if (epcm->capture_bs_val == 0) {
 614                 snd_BUG();
 615                 epcm->capture_bs_val++;
 616         }
 617         if (epcm->type == CAPTURE_AC97ADC) {
 618                 epcm->capture_cr_val = emu->audigy ? A_ADCCR_LCHANENABLE : ADCCR_LCHANENABLE;
 619                 if (runtime->channels > 1)
 620                         epcm->capture_cr_val |= emu->audigy ? A_ADCCR_RCHANENABLE : ADCCR_RCHANENABLE;
 621                 epcm->capture_cr_val |= emu->audigy ?
 622                         snd_emu10k1_audigy_capture_rate_reg(runtime->rate) :
 623                         snd_emu10k1_capture_rate_reg(runtime->rate);
 624         }
 625         return 0;
 626 }
 627
 628 static void snd_emu10k1_playback_invalidate_cache(struct snd_emu10k1 *emu, int extra, struct snd_emu10k1_voice *evoice)
 629 {
 630         struct snd_pcm_runtime *runtime;
 631         unsigned int voice, stereo, i, ccis, cra = 64, cs, sample;
 632
 633         if (evoice == NULL)
 634                 return;
 635         runtime = evoice->epcm->substream->runtime;
 636         voice = evoice->number;
 637         stereo = (!extra && runtime->channels == 2);
 638         sample = snd_pcm_format_width(runtime->format) == 16 ? 0 : 0x80808080;
 639         ccis = emu10k1_ccis(stereo, sample == 0);
 640         // set cs to 2 * number of cache registers beside the invalidated
 641         cs = (sample == 0) ? (32-ccis) : (64-ccis+1) >> 1;
 642         if (cs > 16) cs = 16;
 643         for (i = 0; i < cs; i++) {
 644                 snd_emu10k1_ptr_write(emu, CD0 + i, voice, sample);
 645                 if (stereo) {
 646                         snd_emu10k1_ptr_write(emu, CD0 + i, voice + 1, sample);
 647                 }
 648         }
 649         // reset cache
 650         snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, 0);
 651         snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice, cra);
 652         if (stereo) {
 653                 snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice + 1, 0);
 654                 snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice + 1, cra);
 655         }
 656         // fill cache
 657         snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, ccis);
 658         if (stereo) {
 659                 snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice+1, ccis);
 660         }
 661 }
 662
 663 static void snd_emu10k1_playback_prepare_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice,
 664                                                int master, int extra,
 665                                                struct snd_emu10k1_pcm_mixer *mix)
 666 {
 667         struct snd_pcm_substream *substream;
 668         struct snd_pcm_runtime *runtime;
 669         unsigned int attn, vattn;
 670         unsigned int voice, tmp;
 671
 672         if (evoice == NULL)     /* skip second voice for mono */
 673                 return;
 674         substream = evoice->epcm->substream;
 675         runtime = substream->runtime;
 676         voice = evoice->number;
 677
 678         attn = extra ? 0 : 0x00ff;
 679         tmp = runtime->channels == 2 ? (master ? 1 : 2) : 0;
 680         vattn = mix != NULL ? (mix->attn[tmp] << 16) : 0;
 681         snd_emu10k1_ptr_write(emu, IFATN, voice, attn);
 682         snd_emu10k1_ptr_write(emu, VTFT, voice, vattn | 0xffff);
 683         snd_emu10k1_ptr_write(emu, CVCF, voice, vattn | 0xffff);
 684         snd_emu10k1_ptr_write(emu, DCYSUSV, voice, 0x7f7f);
 685         snd_emu10k1_voice_clear_loop_stop(emu, voice);
 686 }
 687
 688 static void snd_emu10k1_playback_trigger_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice, int master, int extra)
 689 {
 690         struct snd_pcm_substream *substream;
 691         struct snd_pcm_runtime *runtime;
 692         unsigned int voice, pitch, pitch_target;
 693
 694         if (evoice == NULL)     /* skip second voice for mono */
 695                 return;
 696         substream = evoice->epcm->substream;
 697         runtime = substream->runtime;
 698         voice = evoice->number;
 699
 700         pitch = snd_emu10k1_rate_to_pitch(runtime->rate) >> 8;
 701         pitch_target = emu10k1_calc_pitch_target(runtime->rate);
 702         snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, pitch_target);
 703         if (master || evoice->epcm->type == PLAYBACK_EFX)
 704                 snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, pitch_target);
 705         snd_emu10k1_ptr_write(emu, IP, voice, pitch);
 706         if (extra)
 707                 snd_emu10k1_voice_intr_enable(emu, voice);
 708 }
 709
 710 static void snd_emu10k1_playback_stop_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice)
 711 {
 712         unsigned int voice;
 713
 714         if (evoice == NULL)
 715                 return;
 716         voice = evoice->number;
 717         snd_emu10k1_voice_intr_disable(emu, voice);
 718         snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, 0);
 719         snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, 0);
 720         snd_emu10k1_ptr_write(emu, IFATN, voice, 0xffff);
 721         snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
 722         snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
 723         snd_emu10k1_ptr_write(emu, IP, voice, 0);
 724 }
 725
 726 static int snd_emu10k1_playback_trigger(struct snd_pcm_substream *substream,
 727                                         int cmd)
 728 {
 729         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 730         struct snd_pcm_runtime *runtime = substream->runtime;
 731         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 732         struct snd_emu10k1_pcm_mixer *mix;
 733         int result = 0;
 734
 735         // printk("trigger - emu10k1 = 0x%x, cmd = %i, pointer = %i\n", (int)emu, cmd, substream->ops->pointer(substream));
 736         spin_lock(&emu->reg_lock);
 737         switch (cmd) {
 738         case SNDRV_PCM_TRIGGER_START:
 739                 snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra);     /* do we need this? */
 740                 snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[0]);
 741                 /* follow thru */
 742         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 743         case SNDRV_PCM_TRIGGER_RESUME:
 744                 mix = &emu->pcm_mixer[substream->number];
 745                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 1, 0, mix);
 746                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[1], 0, 0, mix);
 747                 snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
 748                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 1, 0);
 749                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[1], 0, 0);
 750                 snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
 751                 epcm->running = 1;
 752                 break;
 753         case SNDRV_PCM_TRIGGER_STOP:
 754         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 755         case SNDRV_PCM_TRIGGER_SUSPEND:
 756                 epcm->running = 0;
 757                 snd_emu10k1_playback_stop_voice(emu, epcm->voices[0]);
 758                 snd_emu10k1_playback_stop_voice(emu, epcm->voices[1]);
 759                 snd_emu10k1_playback_stop_voice(emu, epcm->extra);
 760                 break;
 761         default:
 762                 result = -EINVAL;
 763                 break;
 764         }
 765         spin_unlock(&emu->reg_lock);
 766         return result;
 767 }
 768
 769 static int snd_emu10k1_capture_trigger(struct snd_pcm_substream *substream,
 770                                        int cmd)
 771 {
 772         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 773         struct snd_pcm_runtime *runtime = substream->runtime;
 774         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 775         int result = 0;
 776
 777         spin_lock(&emu->reg_lock);
 778         switch (cmd) {
 779         case SNDRV_PCM_TRIGGER_START:
 780         case SNDRV_PCM_TRIGGER_RESUME:
 781                 // hmm this should cause full and half full interrupt to be raised?
 782                 outl(epcm->capture_ipr, emu->port + IPR);
 783                 snd_emu10k1_intr_enable(emu, epcm->capture_inte);
 784                 // printk("adccr = 0x%x, adcbs = 0x%x\n", epcm->adccr, epcm->adcbs);
 785                 switch (epcm->type) {
 786                 case CAPTURE_AC97ADC:
 787                         snd_emu10k1_ptr_write(emu, ADCCR, 0, epcm->capture_cr_val);
 788                         break;
 789                 case CAPTURE_EFX:
 790                         if (emu->audigy) {
 791                                 snd_emu10k1_ptr_write(emu, A_FXWC1, 0, epcm->capture_cr_val);
 792                                 snd_emu10k1_ptr_write(emu, A_FXWC2, 0, epcm->capture_cr_val2);
 793                         } else
 794                                 snd_emu10k1_ptr_write(emu, FXWC, 0, epcm->capture_cr_val);
 795                         break;
 796                 default:
 797                         break;
 798                 }
 799                 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, epcm->capture_bs_val);
 800                 epcm->running = 1;
 801                 epcm->first_ptr = 1;
 802                 break;
 803         case SNDRV_PCM_TRIGGER_STOP:
 804         case SNDRV_PCM_TRIGGER_SUSPEND:
 805                 epcm->running = 0;
 806                 snd_emu10k1_intr_disable(emu, epcm->capture_inte);
 807                 outl(epcm->capture_ipr, emu->port + IPR);
 808                 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
 809                 switch (epcm->type) {
 810                 case CAPTURE_AC97ADC:
 811                         snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
 812                         break;
 813                 case CAPTURE_EFX:
 814                         if (emu->audigy) {
 815                                 snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
 816                                 snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
 817                         } else
 818                                 snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
 819                         break;
 820                 default:
 821                         break;
 822                 }
 823                 break;
 824         default:
 825                 result = -EINVAL;
 826         }
 827         spin_unlock(&emu->reg_lock);
 828         return result;
 829 }
 830
 831 static snd_pcm_uframes_t snd_emu10k1_playback_pointer(struct snd_pcm_substream *substream)
 832 {
 833         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 834         struct snd_pcm_runtime *runtime = substream->runtime;
 835         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 836         unsigned int ptr;
 837
 838         if (!epcm->running)
 839                 return 0;
 840         ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff;
 841 #if 0   /* Perex's code */
 842         ptr += runtime->buffer_size;
 843         ptr -= epcm->ccca_start_addr;
 844         ptr %= runtime->buffer_size;
 845 #else   /* EMU10K1 Open Source code from Creative */
 846         if (ptr < epcm->ccca_start_addr)
 847                 ptr += runtime->buffer_size - epcm->ccca_start_addr;
 848         else {
 849                 ptr -= epcm->ccca_start_addr;
 850                 if (ptr >= runtime->buffer_size)
 851                         ptr -= runtime->buffer_size;
 852         }
 853 #endif
 854         // printk("ptr = 0x%x, buffer_size = 0x%x, period_size = 0x%x\n", ptr, runtime->buffer_size, runtime->period_size);
 855         return ptr;
 856 }
 857
 858
 859 static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream,
 860                                         int cmd)
 861 {
 862         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 863         struct snd_pcm_runtime *runtime = substream->runtime;
 864         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 865         int i;
 866         int result = 0;
 867
 868         spin_lock(&emu->reg_lock);
 869         switch (cmd) {
 870         case SNDRV_PCM_TRIGGER_START:
 871                 // prepare voices
 872                 for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
 873                         snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[i]);
 874                 }
 875                 snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra);
 876
 877                 /* follow thru */
 878         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 879         case SNDRV_PCM_TRIGGER_RESUME:
 880                 snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
 881                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 0, 0,
 882                                                    &emu->efx_pcm_mixer[0]);
 883                 for (i = 1; i < NUM_EFX_PLAYBACK; i++)
 884                         snd_emu10k1_playback_prepare_voice(emu, epcm->voices[i], 0, 0,
 885                                                            &emu->efx_pcm_mixer[i]);
 886                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 0, 0);
 887                 snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
 888                 for (i = 1; i < NUM_EFX_PLAYBACK; i++)
 889                         snd_emu10k1_playback_trigger_voice(emu, epcm->voices[i], 0, 0);
 890                 epcm->running = 1;
 891                 break;
 892         case SNDRV_PCM_TRIGGER_SUSPEND:
 893         case SNDRV_PCM_TRIGGER_STOP:
 894         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 895                 epcm->running = 0;
 896                 for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
 897                         snd_emu10k1_playback_stop_voice(emu, epcm->voices[i]);
 898                 }
 899                 snd_emu10k1_playback_stop_voice(emu, epcm->extra);
 900                 break;
 901         default:
 902                 result = -EINVAL;
 903                 break;
 904         }
 905         spin_unlock(&emu->reg_lock);
 906         return result;
 907 }
 908
 909
 910 static snd_pcm_uframes_t snd_emu10k1_capture_pointer(struct snd_pcm_substream *substream)
 911 {
 912         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 913         struct snd_pcm_runtime *runtime = substream->runtime;
 914         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 915         unsigned int ptr;
 916
 917         if (!epcm->running)
 918                 return 0;
 919         if (epcm->first_ptr) {
 920                 udelay(50);     // hack, it takes awhile until capture is started
 921                 epcm->first_ptr = 0;
 922         }
 923         ptr = snd_emu10k1_ptr_read(emu, epcm->capture_idx_reg, 0) & 0x0000ffff;
 924         return bytes_to_frames(runtime, ptr);
 925 }
 926
 927 /*
 928  *  Playback support device description
 929  */
 930
 931 static struct snd_pcm_hardware snd_emu10k1_playback =
 932 {
 933         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 934                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 935                                  SNDRV_PCM_INFO_RESUME |
 936                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
 937         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 938         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_96000,
 939         .rate_min =             4000,
 940         .rate_max =             96000,
 941         .channels_min =         1,
 942         .channels_max =         2,
 943         .buffer_bytes_max =     (128*1024),
 944         .period_bytes_min =     64,
 945         .period_bytes_max =     (128*1024),
 946         .periods_min =          1,
 947         .periods_max =          1024,
 948         .fifo_size =            0,
 949 };
 950
 951 /*
 952  *  Capture support device description
 953  */
 954
 955 static struct snd_pcm_hardware snd_emu10k1_capture =
 956 {
 957         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 958                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 959                                  SNDRV_PCM_INFO_RESUME |
 960                                  SNDRV_PCM_INFO_MMAP_VALID),
 961         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 962         .rates =                SNDRV_PCM_RATE_8000_48000,
 963         .rate_min =             8000,
 964         .rate_max =             48000,
 965         .channels_min =         1,
 966         .channels_max =         2,
 967         .buffer_bytes_max =     (64*1024),
 968         .period_bytes_min =     384,
 969         .period_bytes_max =     (64*1024),
 970         .periods_min =          2,
 971         .periods_max =          2,
 972         .fifo_size =            0,
 973 };
 974
 975 /*
 976  *
 977  */
 978
 979 static void snd_emu10k1_pcm_mixer_notify1(struct snd_emu10k1 *emu, struct snd_kcontrol *kctl, int idx, int activate)
 980 {
 981         struct snd_ctl_elem_id id;
 982
 983         if (! kctl)
 984                 return;
 985         if (activate)
 986                 kctl->vd[idx].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 987         else
 988                 kctl->vd[idx].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 989         snd_ctl_notify(emu->card, SNDRV_CTL_EVENT_MASK_VALUE |
 990                        SNDRV_CTL_EVENT_MASK_INFO,
 991                        snd_ctl_build_ioff(&id, kctl, idx));
 992 }
 993
 994 static void snd_emu10k1_pcm_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
 995 {
 996         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_routing, idx, activate);
 997         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_volume, idx, activate);
 998         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_attn, idx, activate);
 999 }
1000
1001 static void snd_emu10k1_pcm_efx_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
1002 {
1003         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_routing, idx, activate);
1004         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_volume, idx, activate);
1005         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_attn, idx, activate);
1006 }
1007
1008 static void snd_emu10k1_pcm_free_substream(struct snd_pcm_runtime *runtime)
1009 {
1010         kfree(runtime->private_data);
1011 }
1012
1013 static int snd_emu10k1_efx_playback_close(struct snd_pcm_substream *substream)
1014 {
1015         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1016         struct snd_emu10k1_pcm_mixer *mix;
1017         int i;
1018
1019         for (i=0; i < NUM_EFX_PLAYBACK; i++) {
1020                 mix = &emu->efx_pcm_mixer[i];
1021                 mix->epcm = NULL;
1022                 snd_emu10k1_pcm_efx_mixer_notify(emu, i, 0);
1023         }
1024         return 0;
1025 }
1026
1027 static int snd_emu10k1_efx_playback_open(struct snd_pcm_substream *substream)
1028 {
1029         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1030         struct snd_emu10k1_pcm *epcm;
1031         struct snd_emu10k1_pcm_mixer *mix;
1032         struct snd_pcm_runtime *runtime = substream->runtime;
1033         int i;
1034
1035         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1036         if (epcm == NULL)
1037                 return -ENOMEM;
1038         epcm->emu = emu;
1039         epcm->type = PLAYBACK_EFX;
1040         epcm->substream = substream;
1041
1042         emu->pcm_playback_efx_substream = substream;
1043
1044         runtime->private_data = epcm;
1045         runtime->private_free = snd_emu10k1_pcm_free_substream;
1046         runtime->hw = snd_emu10k1_efx_playback;
1047
1048         for (i=0; i < NUM_EFX_PLAYBACK; i++) {
1049                 mix = &emu->efx_pcm_mixer[i];
1050                 mix->send_routing[0][0] = i;
1051                 memset(&mix->send_volume, 0, sizeof(mix->send_volume));
1052                 mix->send_volume[0][0] = 255;
1053                 mix->attn[0] = 0xffff;
1054                 mix->epcm = epcm;
1055                 snd_emu10k1_pcm_efx_mixer_notify(emu, i, 1);
1056         }
1057         return 0;
1058 }
1059
1060 static int snd_emu10k1_playback_open(struct snd_pcm_substream *substream)
1061 {
1062         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1063         struct snd_emu10k1_pcm *epcm;
1064         struct snd_emu10k1_pcm_mixer *mix;
1065         struct snd_pcm_runtime *runtime = substream->runtime;
1066         int i, err;
1067
1068         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1069         if (epcm == NULL)
1070                 return -ENOMEM;
1071         epcm->emu = emu;
1072         epcm->type = PLAYBACK_EMUVOICE;
1073         epcm->substream = substream;
1074         runtime->private_data = epcm;
1075         runtime->private_free = snd_emu10k1_pcm_free_substream;
1076         runtime->hw = snd_emu10k1_playback;
1077         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
1078                 kfree(epcm);
1079                 return err;
1080         }
1081         if ((err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX)) < 0) {
1082                 kfree(epcm);
1083                 return err;
1084         }
1085         mix = &emu->pcm_mixer[substream->number];
1086         for (i = 0; i < 4; i++)
1087                 mix->send_routing[0][i] = mix->send_routing[1][i] = mix->send_routing[2][i] = i;
1088         memset(&mix->send_volume, 0, sizeof(mix->send_volume));
1089         mix->send_volume[0][0] = mix->send_volume[0][1] =
1090         mix->send_volume[1][0] = mix->send_volume[2][1] = 255;
1091         mix->attn[0] = mix->attn[1] = mix->attn[2] = 0xffff;
1092         mix->epcm = epcm;
1093         snd_emu10k1_pcm_mixer_notify(emu, substream->number, 1);
1094         return 0;
1095 }
1096
1097 static int snd_emu10k1_playback_close(struct snd_pcm_substream *substream)
1098 {
1099         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1100         struct snd_emu10k1_pcm_mixer *mix = &emu->pcm_mixer[substream->number];
1101
1102         mix->epcm = NULL;
1103         snd_emu10k1_pcm_mixer_notify(emu, substream->number, 0);
1104         return 0;
1105 }
1106
1107 static int snd_emu10k1_capture_open(struct snd_pcm_substream *substream)
1108 {
1109         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1110         struct snd_pcm_runtime *runtime = substream->runtime;
1111         struct snd_emu10k1_pcm *epcm;
1112
1113         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1114         if (epcm == NULL)
1115                 return -ENOMEM;
1116         epcm->emu = emu;
1117         epcm->type = CAPTURE_AC97ADC;
1118         epcm->substream = substream;
1119         epcm->capture_ipr = IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL;
1120         epcm->capture_inte = INTE_ADCBUFENABLE;
1121         epcm->capture_ba_reg = ADCBA;
1122         epcm->capture_bs_reg = ADCBS;
1123         epcm->capture_idx_reg = emu->audigy ? A_ADCIDX : ADCIDX;
1124         runtime->private_data = epcm;
1125         runtime->private_free = snd_emu10k1_pcm_free_substream;
1126         runtime->hw = snd_emu10k1_capture;
1127         emu->capture_interrupt = snd_emu10k1_pcm_ac97adc_interrupt;
1128         emu->pcm_capture_substream = substream;
1129         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1130         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_capture_rates);
1131         return 0;
1132 }
1133
1134 static int snd_emu10k1_capture_close(struct snd_pcm_substream *substream)
1135 {
1136         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1137
1138         emu->capture_interrupt = NULL;
1139         emu->pcm_capture_substream = NULL;
1140         return 0;
1141 }
1142
1143 static int snd_emu10k1_capture_mic_open(struct snd_pcm_substream *substream)
1144 {
1145         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1146         struct snd_emu10k1_pcm *epcm;
1147         struct snd_pcm_runtime *runtime = substream->runtime;
1148
1149         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1150         if (epcm == NULL)
1151                 return -ENOMEM;
1152         epcm->emu = emu;
1153         epcm->type = CAPTURE_AC97MIC;
1154         epcm->substream = substream;
1155         epcm->capture_ipr = IPR_MICBUFFULL|IPR_MICBUFHALFFULL;
1156         epcm->capture_inte = INTE_MICBUFENABLE;
1157         epcm->capture_ba_reg = MICBA;
1158         epcm->capture_bs_reg = MICBS;
1159         epcm->capture_idx_reg = emu->audigy ? A_MICIDX : MICIDX;
1160         substream->runtime->private_data = epcm;
1161         substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1162         runtime->hw = snd_emu10k1_capture;
1163         runtime->hw.rates = SNDRV_PCM_RATE_8000;
1164         runtime->hw.rate_min = runtime->hw.rate_max = 8000;
1165         runtime->hw.channels_min = 1;
1166         emu->capture_mic_interrupt = snd_emu10k1_pcm_ac97mic_interrupt;
1167         emu->pcm_capture_mic_substream = substream;
1168         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1169         return 0;
1170 }
1171
1172 static int snd_emu10k1_capture_mic_close(struct snd_pcm_substream *substream)
1173 {
1174         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1175
1176         emu->capture_interrupt = NULL;
1177         emu->pcm_capture_mic_substream = NULL;
1178         return 0;
1179 }
1180
1181 static int snd_emu10k1_capture_efx_open(struct snd_pcm_substream *substream)
1182 {
1183         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1184         struct snd_emu10k1_pcm *epcm;
1185         struct snd_pcm_runtime *runtime = substream->runtime;
1186         int nefx = emu->audigy ? 64 : 32;
1187         int idx;
1188
1189         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1190         if (epcm == NULL)
1191                 return -ENOMEM;
1192         epcm->emu = emu;
1193         epcm->type = CAPTURE_EFX;
1194         epcm->substream = substream;
1195         epcm->capture_ipr = IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL;
1196         epcm->capture_inte = INTE_EFXBUFENABLE;
1197         epcm->capture_ba_reg = FXBA;
1198         epcm->capture_bs_reg = FXBS;
1199         epcm->capture_idx_reg = FXIDX;
1200         substream->runtime->private_data = epcm;
1201         substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1202         runtime->hw = snd_emu10k1_capture;
1203         runtime->hw.rates = SNDRV_PCM_RATE_48000;
1204         runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1205         spin_lock_irq(&emu->reg_lock);
1206         runtime->hw.channels_min = runtime->hw.channels_max = 0;
1207         for (idx = 0; idx < nefx; idx++) {
1208                 if (emu->efx_voices_mask[idx/32] & (1 << (idx%32))) {
1209                         runtime->hw.channels_min++;
1210                         runtime->hw.channels_max++;
1211                 }
1212         }
1213         epcm->capture_cr_val = emu->efx_voices_mask[0];
1214         epcm->capture_cr_val2 = emu->efx_voices_mask[1];
1215         spin_unlock_irq(&emu->reg_lock);
1216         emu->capture_efx_interrupt = snd_emu10k1_pcm_efx_interrupt;
1217         emu->pcm_capture_efx_substream = substream;
1218         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1219         return 0;
1220 }
1221
1222 static int snd_emu10k1_capture_efx_close(struct snd_pcm_substream *substream)
1223 {
1224         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1225
1226         emu->capture_interrupt = NULL;
1227         emu->pcm_capture_efx_substream = NULL;
1228         return 0;
1229 }
1230
1231 static struct snd_pcm_ops snd_emu10k1_playback_ops = {
1232         .open =                 snd_emu10k1_playback_open,
1233         .close =                snd_emu10k1_playback_close,
1234         .ioctl =                snd_pcm_lib_ioctl,
1235         .hw_params =            snd_emu10k1_playback_hw_params,
1236         .hw_free =              snd_emu10k1_playback_hw_free,
1237         .prepare =              snd_emu10k1_playback_prepare,
1238         .trigger =              snd_emu10k1_playback_trigger,
1239         .pointer =              snd_emu10k1_playback_pointer,
1240         .page =                 snd_pcm_sgbuf_ops_page,
1241 };
1242
1243 static struct snd_pcm_ops snd_emu10k1_capture_ops = {
1244         .open =                 snd_emu10k1_capture_open,
1245         .close =                snd_emu10k1_capture_close,
1246         .ioctl =                snd_pcm_lib_ioctl,
1247         .hw_params =            snd_emu10k1_capture_hw_params,
1248         .hw_free =              snd_emu10k1_capture_hw_free,
1249         .prepare =              snd_emu10k1_capture_prepare,
1250         .trigger =              snd_emu10k1_capture_trigger,
1251         .pointer =              snd_emu10k1_capture_pointer,
1252 };
1253
1254 /* EFX playback */
1255 static struct snd_pcm_ops snd_emu10k1_efx_playback_ops = {
1256         .open =                 snd_emu10k1_efx_playback_open,
1257         .close =                snd_emu10k1_efx_playback_close,
1258         .ioctl =                snd_pcm_lib_ioctl,
1259         .hw_params =            snd_emu10k1_playback_hw_params,
1260         .hw_free =              snd_emu10k1_efx_playback_hw_free,
1261         .prepare =              snd_emu10k1_efx_playback_prepare,
1262         .trigger =              snd_emu10k1_efx_playback_trigger,
1263         .pointer =              snd_emu10k1_efx_playback_pointer,
1264         .page =                 snd_pcm_sgbuf_ops_page,
1265 };
1266
1267 int __devinit snd_emu10k1_pcm(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1268 {
1269         struct snd_pcm *pcm;
1270         struct snd_pcm_substream *substream;
1271         int err;
1272
1273         if (rpcm)
1274                 *rpcm = NULL;
1275
1276         if ((err = snd_pcm_new(emu->card, "emu10k1", device, 32, 1, &pcm)) < 0)
1277                 return err;
1278
1279         pcm->private_data = emu;
1280
1281         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_playback_ops);
1282         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_ops);
1283
1284         pcm->info_flags = 0;
1285         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1286         strcpy(pcm->name, "ADC Capture/Standard PCM Playback");
1287         emu->pcm = pcm;
1288
1289         for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1290                 if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
1291                         return err;
1292
1293         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substream->next)
1294                 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1295
1296         if (rpcm)
1297                 *rpcm = pcm;
1298
1299         return 0;
1300 }
1301
1302 int __devinit snd_emu10k1_pcm_multi(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1303 {
1304         struct snd_pcm *pcm;
1305         struct snd_pcm_substream *substream;
1306         int err;
1307
1308         if (rpcm)
1309                 *rpcm = NULL;
1310
1311         if ((err = snd_pcm_new(emu->card, "emu10k1", device, 1, 0, &pcm)) < 0)
1312                 return err;
1313
1314         pcm->private_data = emu;
1315
1316         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_efx_playback_ops);
1317
1318         pcm->info_flags = 0;
1319         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1320         strcpy(pcm->name, "Multichannel Playback");
1321         emu->pcm_multi = pcm;
1322
1323         for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1324                 if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
1325                         return err;
1326
1327         if (rpcm)
1328                 *rpcm = pcm;
1329
1330         return 0;
1331 }
1332
1333
1334 static struct snd_pcm_ops snd_emu10k1_capture_mic_ops = {
1335         .open =                 snd_emu10k1_capture_mic_open,
1336         .close =                snd_emu10k1_capture_mic_close,
1337         .ioctl =                snd_pcm_lib_ioctl,
1338         .hw_params =            snd_emu10k1_capture_hw_params,
1339         .hw_free =              snd_emu10k1_capture_hw_free,
1340         .prepare =              snd_emu10k1_capture_prepare,
1341         .trigger =              snd_emu10k1_capture_trigger,
1342         .pointer =              snd_emu10k1_capture_pointer,
1343 };
1344
1345 int __devinit snd_emu10k1_pcm_mic(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1346 {
1347         struct snd_pcm *pcm;
1348         int err;
1349
1350         if (rpcm)
1351                 *rpcm = NULL;
1352
1353         if ((err = snd_pcm_new(emu->card, "emu10k1 mic", device, 0, 1, &pcm)) < 0)
1354                 return err;
1355
1356         pcm->private_data = emu;
1357
1358         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_mic_ops);
1359
1360         pcm->info_flags = 0;
1361         strcpy(pcm->name, "Mic Capture");
1362         emu->pcm_mic = pcm;
1363
1364         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1365
1366         if (rpcm)
1367                 *rpcm = pcm;
1368         return 0;
1369 }
1370
1371 static int snd_emu10k1_pcm_efx_voices_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1372 {
1373         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1374         int nefx = emu->audigy ? 64 : 32;
1375         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1376         uinfo->count = nefx;
1377         uinfo->value.integer.min = 0;
1378         uinfo->value.integer.max = 1;
1379         return 0;
1380 }
1381
1382 static int snd_emu10k1_pcm_efx_voices_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1383 {
1384         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1385         int nefx = emu->audigy ? 64 : 32;
1386         int idx;
1387
1388         spin_lock_irq(&emu->reg_lock);
1389         for (idx = 0; idx < nefx; idx++)
1390                 ucontrol->value.integer.value[idx] = (emu->efx_voices_mask[idx / 32] & (1 << (idx % 32))) ? 1 : 0;
1391         spin_unlock_irq(&emu->reg_lock);
1392         return 0;
1393 }
1394
1395 static int snd_emu10k1_pcm_efx_voices_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1396 {
1397         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1398         unsigned int nval[2], bits;
1399         int nefx = emu->audigy ? 64 : 32;
1400         int nefxb = emu->audigy ? 7 : 6;
1401         int change, idx;
1402
1403         nval[0] = nval[1] = 0;
1404         for (idx = 0, bits = 0; idx < nefx; idx++)
1405                 if (ucontrol->value.integer.value[idx]) {
1406                         nval[idx / 32] |= 1 << (idx % 32);
1407                         bits++;
1408                 }
1409
1410         for (idx = 0; idx < nefxb; idx++)
1411                 if (1 << idx == bits)
1412                         break;
1413
1414         if (idx >= nefxb)
1415                 return -EINVAL;
1416
1417         spin_lock_irq(&emu->reg_lock);
1418         change = (nval[0] != emu->efx_voices_mask[0]) ||
1419                 (nval[1] != emu->efx_voices_mask[1]);
1420         emu->efx_voices_mask[0] = nval[0];
1421         emu->efx_voices_mask[1] = nval[1];
1422         spin_unlock_irq(&emu->reg_lock);
1423         return change;
1424 }
1425
1426 static struct snd_kcontrol_new snd_emu10k1_pcm_efx_voices_mask = {
1427         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1428         .name = "Captured FX8010 Outputs",
1429         .info = snd_emu10k1_pcm_efx_voices_mask_info,
1430         .get = snd_emu10k1_pcm_efx_voices_mask_get,
1431         .put = snd_emu10k1_pcm_efx_voices_mask_put
1432 };
1433
1434 static struct snd_pcm_ops snd_emu10k1_capture_efx_ops = {
1435         .open =                 snd_emu10k1_capture_efx_open,
1436         .close =                snd_emu10k1_capture_efx_close,
1437         .ioctl =                snd_pcm_lib_ioctl,
1438         .hw_params =            snd_emu10k1_capture_hw_params,
1439         .hw_free =              snd_emu10k1_capture_hw_free,
1440         .prepare =              snd_emu10k1_capture_prepare,
1441         .trigger =              snd_emu10k1_capture_trigger,
1442         .pointer =              snd_emu10k1_capture_pointer,
1443 };
1444
1445
1446 /* EFX playback */
1447
1448 #define INITIAL_TRAM_SHIFT     14
1449 #define INITIAL_TRAM_POS(size) ((((size) / 2) - INITIAL_TRAM_SHIFT) - 1)
1450
1451 static void snd_emu10k1_fx8010_playback_irq(struct snd_emu10k1 *emu, void *private_data)
1452 {
1453         struct snd_pcm_substream *substream = private_data;
1454         snd_pcm_period_elapsed(substream);
1455 }
1456
1457 static void snd_emu10k1_fx8010_playback_tram_poke1(unsigned short *dst_left,
1458                                                    unsigned short *dst_right,
1459                                                    unsigned short *src,
1460                                                    unsigned int count,
1461                                                    unsigned int tram_shift)
1462 {
1463         // printk("tram_poke1: dst_left = 0x%p, dst_right = 0x%p, src = 0x%p, count = 0x%x\n", dst_left, dst_right, src, count);
1464         if ((tram_shift & 1) == 0) {
1465                 while (count--) {
1466                         *dst_left-- = *src++;
1467                         *dst_right-- = *src++;
1468                 }
1469         } else {
1470                 while (count--) {
1471                         *dst_right-- = *src++;
1472                         *dst_left-- = *src++;
1473                 }
1474         }
1475 }
1476
1477 static void fx8010_pb_trans_copy(struct snd_pcm_substream *substream,
1478                                  struct snd_pcm_indirect *rec, size_t bytes)
1479 {
1480         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1481         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1482         unsigned int tram_size = pcm->buffer_size;
1483         unsigned short *src = (unsigned short *)(substream->runtime->dma_area + rec->sw_data);
1484         unsigned int frames = bytes >> 2, count;
1485         unsigned int tram_pos = pcm->tram_pos;
1486         unsigned int tram_shift = pcm->tram_shift;
1487
1488         while (frames > tram_pos) {
1489                 count = tram_pos + 1;
1490                 snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1491                                                        (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1492                                                        src, count, tram_shift);
1493                 src += count * 2;
1494                 frames -= count;
1495                 tram_pos = (tram_size / 2) - 1;
1496                 tram_shift++;
1497         }
1498         snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1499                                                (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1500                                                src, frames, tram_shift);
1501         tram_pos -= frames;
1502         pcm->tram_pos = tram_pos;
1503         pcm->tram_shift = tram_shift;
1504 }
1505
1506 static int snd_emu10k1_fx8010_playback_transfer(struct snd_pcm_substream *substream)
1507 {
1508         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1509         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1510
1511         snd_pcm_indirect_playback_transfer(substream, &pcm->pcm_rec, fx8010_pb_trans_copy);
1512         return 0;
1513 }
1514
1515 static int snd_emu10k1_fx8010_playback_hw_params(struct snd_pcm_substream *substream,
1516                                                  struct snd_pcm_hw_params *hw_params)
1517 {
1518         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1519 }
1520
1521 static int snd_emu10k1_fx8010_playback_hw_free(struct snd_pcm_substream *substream)
1522 {
1523         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1524         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1525         unsigned int i;
1526
1527         for (i = 0; i < pcm->channels; i++)
1528                 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, 0);
1529         snd_pcm_lib_free_pages(substream);
1530         return 0;
1531 }
1532
1533 static int snd_emu10k1_fx8010_playback_prepare(struct snd_pcm_substream *substream)
1534 {
1535         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1536         struct snd_pcm_runtime *runtime = substream->runtime;
1537         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1538         unsigned int i;
1539
1540         // printk("prepare: etram_pages = 0x%p, dma_area = 0x%x, buffer_size = 0x%x (0x%x)\n", emu->fx8010.etram_pages, runtime->dma_area, runtime->buffer_size, runtime->buffer_size << 2);
1541         memset(&pcm->pcm_rec, 0, sizeof(pcm->pcm_rec));
1542         pcm->pcm_rec.hw_buffer_size = pcm->buffer_size * 2; /* byte size */
1543         pcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1544         pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1545         pcm->tram_shift = 0;
1546         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_running, 0, 0);     /* reset */
1547         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);     /* reset */
1548         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_size, 0, runtime->buffer_size);
1549         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_ptr, 0, 0);         /* reset ptr number */
1550         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_count, 0, runtime->period_size);
1551         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_tmpcount, 0, runtime->period_size);
1552         for (i = 0; i < pcm->channels; i++)
1553                 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, (TANKMEMADDRREG_READ|TANKMEMADDRREG_ALIGN) + i * (runtime->buffer_size / pcm->channels));
1554         return 0;
1555 }
1556
1557 static int snd_emu10k1_fx8010_playback_trigger(struct snd_pcm_substream *substream, int cmd)
1558 {
1559         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1560         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1561         int result = 0;
1562
1563         spin_lock(&emu->reg_lock);
1564         switch (cmd) {
1565         case SNDRV_PCM_TRIGGER_START:
1566                 /* follow thru */
1567         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1568         case SNDRV_PCM_TRIGGER_RESUME:
1569 #ifdef EMU10K1_SET_AC3_IEC958
1570         {
1571                 int i;
1572                 for (i = 0; i < 3; i++) {
1573                         unsigned int bits;
1574                         bits = SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1575                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | SPCS_GENERATIONSTATUS |
1576                                0x00001200 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT | SPCS_NOTAUDIODATA;
1577                         snd_emu10k1_ptr_write(emu, SPCS0 + i, 0, bits);
1578                 }
1579         }
1580 #endif
1581                 result = snd_emu10k1_fx8010_register_irq_handler(emu, snd_emu10k1_fx8010_playback_irq, pcm->gpr_running, substream, &pcm->irq);
1582                 if (result < 0)
1583                         goto __err;
1584                 snd_emu10k1_fx8010_playback_transfer(substream);        /* roll the ball */
1585                 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 1);
1586                 break;
1587         case SNDRV_PCM_TRIGGER_STOP:
1588         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1589         case SNDRV_PCM_TRIGGER_SUSPEND:
1590                 snd_emu10k1_fx8010_unregister_irq_handler(emu, pcm->irq); pcm->irq = NULL;
1591                 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);
1592                 pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1593                 pcm->tram_shift = 0;
1594                 break;
1595         default:
1596                 result = -EINVAL;
1597                 break;
1598         }
1599       __err:
1600         spin_unlock(&emu->reg_lock);
1601         return result;
1602 }
1603
1604 static snd_pcm_uframes_t snd_emu10k1_fx8010_playback_pointer(struct snd_pcm_substream *substream)
1605 {
1606         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1607         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1608         size_t ptr; /* byte pointer */
1609
1610         if (!snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_trigger, 0))
1611                 return 0;
1612         ptr = snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_ptr, 0) << 2;
1613         return snd_pcm_indirect_playback_pointer(substream, &pcm->pcm_rec, ptr);
1614 }
1615
1616 static struct snd_pcm_hardware snd_emu10k1_fx8010_playback =
1617 {
1618         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1619                                  SNDRV_PCM_INFO_RESUME |
1620                                  /* SNDRV_PCM_INFO_MMAP_VALID | */ SNDRV_PCM_INFO_PAUSE),
1621         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1622         .rates =                SNDRV_PCM_RATE_48000,
1623         .rate_min =             48000,
1624         .rate_max =             48000,
1625         .channels_min =         1,
1626         .channels_max =         1,
1627         .buffer_bytes_max =     (128*1024),
1628         .period_bytes_min =     1024,
1629         .period_bytes_max =     (128*1024),
1630         .periods_min =          1,
1631         .periods_max =          1024,
1632         .fifo_size =            0,
1633 };
1634
1635 static int snd_emu10k1_fx8010_playback_open(struct snd_pcm_substream *substream)
1636 {
1637         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1638         struct snd_pcm_runtime *runtime = substream->runtime;
1639         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1640
1641         runtime->hw = snd_emu10k1_fx8010_playback;
1642         runtime->hw.channels_min = runtime->hw.channels_max = pcm->channels;
1643         runtime->hw.period_bytes_max = (pcm->buffer_size * 2) / 2;
1644         spin_lock_irq(&emu->reg_lock);
1645         if (pcm->valid == 0) {
1646                 spin_unlock_irq(&emu->reg_lock);
1647                 return -ENODEV;
1648         }
1649         pcm->opened = 1;
1650         spin_unlock_irq(&emu->reg_lock);
1651         return 0;
1652 }
1653
1654 static int snd_emu10k1_fx8010_playback_close(struct snd_pcm_substream *substream)
1655 {
1656         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1657         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1658
1659         spin_lock_irq(&emu->reg_lock);
1660         pcm->opened = 0;
1661         spin_unlock_irq(&emu->reg_lock);
1662         return 0;
1663 }
1664
1665 static struct snd_pcm_ops snd_emu10k1_fx8010_playback_ops = {
1666         .open =                 snd_emu10k1_fx8010_playback_open,
1667         .close =                snd_emu10k1_fx8010_playback_close,
1668         .ioctl =                snd_pcm_lib_ioctl,
1669         .hw_params =            snd_emu10k1_fx8010_playback_hw_params,
1670         .hw_free =              snd_emu10k1_fx8010_playback_hw_free,
1671         .prepare =              snd_emu10k1_fx8010_playback_prepare,
1672         .trigger =              snd_emu10k1_fx8010_playback_trigger,
1673         .pointer =              snd_emu10k1_fx8010_playback_pointer,
1674         .ack =                  snd_emu10k1_fx8010_playback_transfer,
1675 };
1676
1677 int __devinit snd_emu10k1_pcm_efx(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1678 {
1679         struct snd_pcm *pcm;
1680         struct snd_kcontrol *kctl;
1681         int err;
1682
1683         if (rpcm)
1684                 *rpcm = NULL;
1685
1686         if ((err = snd_pcm_new(emu->card, "emu10k1 efx", device, 8, 1, &pcm)) < 0)
1687                 return err;
1688
1689         pcm->private_data = emu;
1690
1691         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_fx8010_playback_ops);
1692         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_efx_ops);
1693
1694         pcm->info_flags = 0;
1695         strcpy(pcm->name, "Multichannel Capture/PT Playback");
1696         emu->pcm_efx = pcm;
1697         if (rpcm)
1698                 *rpcm = pcm;
1699
1700         /* EFX capture - record the "FXBUS2" channels, by default we connect the EXTINs
1701          * to these
1702          */
1703
1704         /* emu->efx_voices_mask[0] = FXWC_DEFAULTROUTE_C | FXWC_DEFAULTROUTE_A; */
1705         if (emu->audigy) {
1706                 emu->efx_voices_mask[0] = 0;
1707                 emu->efx_voices_mask[1] = 0xffff;
1708         } else {
1709                 emu->efx_voices_mask[0] = 0xffff0000;
1710                 emu->efx_voices_mask[1] = 0;
1711         }
1712         kctl = snd_ctl_new1(&snd_emu10k1_pcm_efx_voices_mask, emu);
1713         if (!kctl)
1714                 return -ENOMEM;
1715         kctl->id.device = device;
1716         snd_ctl_add(emu->card, kctl);
1717
1718         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1719
1720         return 0;
1721 }