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_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
 555         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 556         .rates =                SNDRV_PCM_RATE_48000,
 557         .rate_min =             48000,
 558         .rate_max =             48000,
 559         .channels_min =         NUM_EFX_PLAYBACK,
 560         .channels_max =         NUM_EFX_PLAYBACK,
 561         .buffer_bytes_max =     (64*1024),
 562         .period_bytes_min =     64,
 563         .period_bytes_max =     (64*1024),
 564         .periods_min =          2,
 565         .periods_max =          2,
 566         .fifo_size =            0,
 567 };
 568
 569 static int snd_emu10k1_capture_hw_params(struct snd_pcm_substream *substream,
 570                                          struct snd_pcm_hw_params *hw_params)
 571 {
 572         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 573 }
 574
 575 static int snd_emu10k1_capture_hw_free(struct snd_pcm_substream *substream)
 576 {
 577         return snd_pcm_lib_free_pages(substream);
 578 }
 579
 580 static int snd_emu10k1_capture_prepare(struct snd_pcm_substream *substream)
 581 {
 582         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 583         struct snd_pcm_runtime *runtime = substream->runtime;
 584         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 585         int idx;
 586
 587         /* zeroing the buffer size will stop capture */
 588         snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
 589         switch (epcm->type) {
 590         case CAPTURE_AC97ADC:
 591                 snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
 592                 break;
 593         case CAPTURE_EFX:
 594                 if (emu->audigy) {
 595                         snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
 596                         snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
 597                 } else
 598                         snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
 599                 break;
 600         default:
 601                 break;
 602         }
 603         snd_emu10k1_ptr_write(emu, epcm->capture_ba_reg, 0, runtime->dma_addr);
 604         epcm->capture_bufsize = snd_pcm_lib_buffer_bytes(substream);
 605         epcm->capture_bs_val = 0;
 606         for (idx = 0; idx < 31; idx++) {
 607                 if (capture_period_sizes[idx] == epcm->capture_bufsize) {
 608                         epcm->capture_bs_val = idx + 1;
 609                         break;
 610                 }
 611         }
 612         if (epcm->capture_bs_val == 0) {
 613                 snd_BUG();
 614                 epcm->capture_bs_val++;
 615         }
 616         if (epcm->type == CAPTURE_AC97ADC) {
 617                 epcm->capture_cr_val = emu->audigy ? A_ADCCR_LCHANENABLE : ADCCR_LCHANENABLE;
 618                 if (runtime->channels > 1)
 619                         epcm->capture_cr_val |= emu->audigy ? A_ADCCR_RCHANENABLE : ADCCR_RCHANENABLE;
 620                 epcm->capture_cr_val |= emu->audigy ?
 621                         snd_emu10k1_audigy_capture_rate_reg(runtime->rate) :
 622                         snd_emu10k1_capture_rate_reg(runtime->rate);
 623         }
 624         return 0;
 625 }
 626
 627 static void snd_emu10k1_playback_invalidate_cache(struct snd_emu10k1 *emu, int extra, struct snd_emu10k1_voice *evoice)
 628 {
 629         struct snd_pcm_runtime *runtime;
 630         unsigned int voice, stereo, i, ccis, cra = 64, cs, sample;
 631
 632         if (evoice == NULL)
 633                 return;
 634         runtime = evoice->epcm->substream->runtime;
 635         voice = evoice->number;
 636         stereo = (!extra && runtime->channels == 2);
 637         sample = snd_pcm_format_width(runtime->format) == 16 ? 0 : 0x80808080;
 638         ccis = emu10k1_ccis(stereo, sample == 0);
 639         // set cs to 2 * number of cache registers beside the invalidated
 640         cs = (sample == 0) ? (32-ccis) : (64-ccis+1) >> 1;
 641         if (cs > 16) cs = 16;
 642         for (i = 0; i < cs; i++) {
 643                 snd_emu10k1_ptr_write(emu, CD0 + i, voice, sample);
 644                 if (stereo) {
 645                         snd_emu10k1_ptr_write(emu, CD0 + i, voice + 1, sample);
 646                 }
 647         }
 648         // reset cache
 649         snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, 0);
 650         snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice, cra);
 651         if (stereo) {
 652                 snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice + 1, 0);
 653                 snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice + 1, cra);
 654         }
 655         // fill cache
 656         snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, ccis);
 657         if (stereo) {
 658                 snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice+1, ccis);
 659         }
 660 }
 661
 662 static void snd_emu10k1_playback_prepare_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice,
 663                                                int master, int extra,
 664                                                struct snd_emu10k1_pcm_mixer *mix)
 665 {
 666         struct snd_pcm_substream *substream;
 667         struct snd_pcm_runtime *runtime;
 668         unsigned int attn, vattn;
 669         unsigned int voice, tmp;
 670
 671         if (evoice == NULL)     /* skip second voice for mono */
 672                 return;
 673         substream = evoice->epcm->substream;
 674         runtime = substream->runtime;
 675         voice = evoice->number;
 676
 677         attn = extra ? 0 : 0x00ff;
 678         tmp = runtime->channels == 2 ? (master ? 1 : 2) : 0;
 679         vattn = mix != NULL ? (mix->attn[tmp] << 16) : 0;
 680         snd_emu10k1_ptr_write(emu, IFATN, voice, attn);
 681         snd_emu10k1_ptr_write(emu, VTFT, voice, vattn | 0xffff);
 682         snd_emu10k1_ptr_write(emu, CVCF, voice, vattn | 0xffff);
 683         snd_emu10k1_ptr_write(emu, DCYSUSV, voice, 0x7f7f);
 684         snd_emu10k1_voice_clear_loop_stop(emu, voice);
 685 }
 686
 687 static void snd_emu10k1_playback_trigger_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice, int master, int extra)
 688 {
 689         struct snd_pcm_substream *substream;
 690         struct snd_pcm_runtime *runtime;
 691         unsigned int voice, pitch, pitch_target;
 692
 693         if (evoice == NULL)     /* skip second voice for mono */
 694                 return;
 695         substream = evoice->epcm->substream;
 696         runtime = substream->runtime;
 697         voice = evoice->number;
 698
 699         pitch = snd_emu10k1_rate_to_pitch(runtime->rate) >> 8;
 700         pitch_target = emu10k1_calc_pitch_target(runtime->rate);
 701         snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, pitch_target);
 702         if (master || evoice->epcm->type == PLAYBACK_EFX)
 703                 snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, pitch_target);
 704         snd_emu10k1_ptr_write(emu, IP, voice, pitch);
 705         if (extra)
 706                 snd_emu10k1_voice_intr_enable(emu, voice);
 707 }
 708
 709 static void snd_emu10k1_playback_stop_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice)
 710 {
 711         unsigned int voice;
 712
 713         if (evoice == NULL)
 714                 return;
 715         voice = evoice->number;
 716         snd_emu10k1_voice_intr_disable(emu, voice);
 717         snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, 0);
 718         snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, 0);
 719         snd_emu10k1_ptr_write(emu, IFATN, voice, 0xffff);
 720         snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
 721         snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
 722         snd_emu10k1_ptr_write(emu, IP, voice, 0);
 723 }
 724
 725 static int snd_emu10k1_playback_trigger(struct snd_pcm_substream *substream,
 726                                         int cmd)
 727 {
 728         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 729         struct snd_pcm_runtime *runtime = substream->runtime;
 730         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 731         struct snd_emu10k1_pcm_mixer *mix;
 732         int result = 0;
 733
 734         // printk("trigger - emu10k1 = 0x%x, cmd = %i, pointer = %i\n", (int)emu, cmd, substream->ops->pointer(substream));
 735         spin_lock(&emu->reg_lock);
 736         switch (cmd) {
 737         case SNDRV_PCM_TRIGGER_START:
 738                 snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra);     /* do we need this? */
 739                 snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[0]);
 740                 /* follow thru */
 741         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 742                 mix = &emu->pcm_mixer[substream->number];
 743                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 1, 0, mix);
 744                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[1], 0, 0, mix);
 745                 snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
 746                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 1, 0);
 747                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[1], 0, 0);
 748                 snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
 749                 epcm->running = 1;
 750                 break;
 751         case SNDRV_PCM_TRIGGER_STOP:
 752         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 753                 epcm->running = 0;
 754                 snd_emu10k1_playback_stop_voice(emu, epcm->voices[0]);
 755                 snd_emu10k1_playback_stop_voice(emu, epcm->voices[1]);
 756                 snd_emu10k1_playback_stop_voice(emu, epcm->extra);
 757                 break;
 758         default:
 759                 result = -EINVAL;
 760                 break;
 761         }
 762         spin_unlock(&emu->reg_lock);
 763         return result;
 764 }
 765
 766 static int snd_emu10k1_capture_trigger(struct snd_pcm_substream *substream,
 767                                        int cmd)
 768 {
 769         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 770         struct snd_pcm_runtime *runtime = substream->runtime;
 771         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 772         int result = 0;
 773
 774         spin_lock(&emu->reg_lock);
 775         switch (cmd) {
 776         case SNDRV_PCM_TRIGGER_START:
 777                 // hmm this should cause full and half full interrupt to be raised?
 778                 outl(epcm->capture_ipr, emu->port + IPR);
 779                 snd_emu10k1_intr_enable(emu, epcm->capture_inte);
 780                 // printk("adccr = 0x%x, adcbs = 0x%x\n", epcm->adccr, epcm->adcbs);
 781                 switch (epcm->type) {
 782                 case CAPTURE_AC97ADC:
 783                         snd_emu10k1_ptr_write(emu, ADCCR, 0, epcm->capture_cr_val);
 784                         break;
 785                 case CAPTURE_EFX:
 786                         if (emu->audigy) {
 787                                 snd_emu10k1_ptr_write(emu, A_FXWC1, 0, epcm->capture_cr_val);
 788                                 snd_emu10k1_ptr_write(emu, A_FXWC2, 0, epcm->capture_cr_val2);
 789                         } else
 790                                 snd_emu10k1_ptr_write(emu, FXWC, 0, epcm->capture_cr_val);
 791                         break;
 792                 default:
 793                         break;
 794                 }
 795                 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, epcm->capture_bs_val);
 796                 epcm->running = 1;
 797                 epcm->first_ptr = 1;
 798                 break;
 799         case SNDRV_PCM_TRIGGER_STOP:
 800                 epcm->running = 0;
 801                 snd_emu10k1_intr_disable(emu, epcm->capture_inte);
 802                 outl(epcm->capture_ipr, emu->port + IPR);
 803                 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
 804                 switch (epcm->type) {
 805                 case CAPTURE_AC97ADC:
 806                         snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
 807                         break;
 808                 case CAPTURE_EFX:
 809                         if (emu->audigy) {
 810                                 snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
 811                                 snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
 812                         } else
 813                                 snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
 814                         break;
 815                 default:
 816                         break;
 817                 }
 818                 break;
 819         default:
 820                 result = -EINVAL;
 821         }
 822         spin_unlock(&emu->reg_lock);
 823         return result;
 824 }
 825
 826 static snd_pcm_uframes_t snd_emu10k1_playback_pointer(struct snd_pcm_substream *substream)
 827 {
 828         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 829         struct snd_pcm_runtime *runtime = substream->runtime;
 830         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 831         unsigned int ptr;
 832
 833         if (!epcm->running)
 834                 return 0;
 835         ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff;
 836 #if 0   /* Perex's code */
 837         ptr += runtime->buffer_size;
 838         ptr -= epcm->ccca_start_addr;
 839         ptr %= runtime->buffer_size;
 840 #else   /* EMU10K1 Open Source code from Creative */
 841         if (ptr < epcm->ccca_start_addr)
 842                 ptr += runtime->buffer_size - epcm->ccca_start_addr;
 843         else {
 844                 ptr -= epcm->ccca_start_addr;
 845                 if (ptr >= runtime->buffer_size)
 846                         ptr -= runtime->buffer_size;
 847         }
 848 #endif
 849         // printk("ptr = 0x%x, buffer_size = 0x%x, period_size = 0x%x\n", ptr, runtime->buffer_size, runtime->period_size);
 850         return ptr;
 851 }
 852
 853
 854 static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream,
 855                                         int cmd)
 856 {
 857         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 858         struct snd_pcm_runtime *runtime = substream->runtime;
 859         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 860         int i;
 861         int result = 0;
 862
 863         spin_lock(&emu->reg_lock);
 864         switch (cmd) {
 865         case SNDRV_PCM_TRIGGER_START:
 866                 // prepare voices
 867                 for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
 868                         snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[i]);
 869                 }
 870                 snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra);
 871
 872                 /* follow thru */
 873         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 874                 snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
 875                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 0, 0,
 876                                                    &emu->efx_pcm_mixer[0]);
 877                 for (i = 1; i < NUM_EFX_PLAYBACK; i++)
 878                         snd_emu10k1_playback_prepare_voice(emu, epcm->voices[i], 0, 0,
 879                                                            &emu->efx_pcm_mixer[i]);
 880                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 0, 0);
 881                 snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
 882                 for (i = 1; i < NUM_EFX_PLAYBACK; i++)
 883                         snd_emu10k1_playback_trigger_voice(emu, epcm->voices[i], 0, 0);
 884                 epcm->running = 1;
 885                 break;
 886         case SNDRV_PCM_TRIGGER_STOP:
 887         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 888                 epcm->running = 0;
 889                 for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
 890                         snd_emu10k1_playback_stop_voice(emu, epcm->voices[i]);
 891                 }
 892                 snd_emu10k1_playback_stop_voice(emu, epcm->extra);
 893                 break;
 894         default:
 895                 result = -EINVAL;
 896                 break;
 897         }
 898         spin_unlock(&emu->reg_lock);
 899         return result;
 900 }
 901
 902
 903 static snd_pcm_uframes_t snd_emu10k1_capture_pointer(struct snd_pcm_substream *substream)
 904 {
 905         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
 906         struct snd_pcm_runtime *runtime = substream->runtime;
 907         struct snd_emu10k1_pcm *epcm = runtime->private_data;
 908         unsigned int ptr;
 909
 910         if (!epcm->running)
 911                 return 0;
 912         if (epcm->first_ptr) {
 913                 udelay(50);     // hack, it takes awhile until capture is started
 914                 epcm->first_ptr = 0;
 915         }
 916         ptr = snd_emu10k1_ptr_read(emu, epcm->capture_idx_reg, 0) & 0x0000ffff;
 917         return bytes_to_frames(runtime, ptr);
 918 }
 919
 920 /*
 921  *  Playback support device description
 922  */
 923
 924 static struct snd_pcm_hardware snd_emu10k1_playback =
 925 {
 926         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 927                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 928                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
 929         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 930         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_96000,
 931         .rate_min =             4000,
 932         .rate_max =             96000,
 933         .channels_min =         1,
 934         .channels_max =         2,
 935         .buffer_bytes_max =     (128*1024),
 936         .period_bytes_min =     64,
 937         .period_bytes_max =     (128*1024),
 938         .periods_min =          1,
 939         .periods_max =          1024,
 940         .fifo_size =            0,
 941 };
 942
 943 /*
 944  *  Capture support device description
 945  */
 946
 947 static struct snd_pcm_hardware snd_emu10k1_capture =
 948 {
 949         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 950                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 951                                  SNDRV_PCM_INFO_MMAP_VALID),
 952         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 953         .rates =                SNDRV_PCM_RATE_8000_48000,
 954         .rate_min =             8000,
 955         .rate_max =             48000,
 956         .channels_min =         1,
 957         .channels_max =         2,
 958         .buffer_bytes_max =     (64*1024),
 959         .period_bytes_min =     384,
 960         .period_bytes_max =     (64*1024),
 961         .periods_min =          2,
 962         .periods_max =          2,
 963         .fifo_size =            0,
 964 };
 965
 966 /*
 967  *
 968  */
 969
 970 static void snd_emu10k1_pcm_mixer_notify1(struct snd_emu10k1 *emu, struct snd_kcontrol *kctl, int idx, int activate)
 971 {
 972         struct snd_ctl_elem_id id;
 973
 974         if (! kctl)
 975                 return;
 976         if (activate)
 977                 kctl->vd[idx].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 978         else
 979                 kctl->vd[idx].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 980         snd_ctl_notify(emu->card, SNDRV_CTL_EVENT_MASK_VALUE |
 981                        SNDRV_CTL_EVENT_MASK_INFO,
 982                        snd_ctl_build_ioff(&id, kctl, idx));
 983 }
 984
 985 static void snd_emu10k1_pcm_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
 986 {
 987         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_routing, idx, activate);
 988         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_volume, idx, activate);
 989         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_attn, idx, activate);
 990 }
 991
 992 static void snd_emu10k1_pcm_efx_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
 993 {
 994         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_routing, idx, activate);
 995         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_volume, idx, activate);
 996         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_attn, idx, activate);
 997 }
 998
 999 static void snd_emu10k1_pcm_free_substream(struct snd_pcm_runtime *runtime)
1000 {
1001         kfree(runtime->private_data);
1002 }
1003
1004 static int snd_emu10k1_efx_playback_close(struct snd_pcm_substream *substream)
1005 {
1006         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1007         struct snd_emu10k1_pcm_mixer *mix;
1008         int i;
1009
1010         for (i=0; i < NUM_EFX_PLAYBACK; i++) {
1011                 mix = &emu->efx_pcm_mixer[i];
1012                 mix->epcm = NULL;
1013                 snd_emu10k1_pcm_efx_mixer_notify(emu, i, 0);
1014         }
1015         return 0;
1016 }
1017
1018 static int snd_emu10k1_efx_playback_open(struct snd_pcm_substream *substream)
1019 {
1020         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1021         struct snd_emu10k1_pcm *epcm;
1022         struct snd_emu10k1_pcm_mixer *mix;
1023         struct snd_pcm_runtime *runtime = substream->runtime;
1024         int i;
1025
1026         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1027         if (epcm == NULL)
1028                 return -ENOMEM;
1029         epcm->emu = emu;
1030         epcm->type = PLAYBACK_EFX;
1031         epcm->substream = substream;
1032
1033         emu->pcm_playback_efx_substream = substream;
1034
1035         runtime->private_data = epcm;
1036         runtime->private_free = snd_emu10k1_pcm_free_substream;
1037         runtime->hw = snd_emu10k1_efx_playback;
1038
1039         for (i=0; i < NUM_EFX_PLAYBACK; i++) {
1040                 mix = &emu->efx_pcm_mixer[i];
1041                 mix->send_routing[0][0] = i;
1042                 memset(&mix->send_volume, 0, sizeof(mix->send_volume));
1043                 mix->send_volume[0][0] = 255;
1044                 mix->attn[0] = 0xffff;
1045                 mix->epcm = epcm;
1046                 snd_emu10k1_pcm_efx_mixer_notify(emu, i, 1);
1047         }
1048         return 0;
1049 }
1050
1051 static int snd_emu10k1_playback_open(struct snd_pcm_substream *substream)
1052 {
1053         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1054         struct snd_emu10k1_pcm *epcm;
1055         struct snd_emu10k1_pcm_mixer *mix;
1056         struct snd_pcm_runtime *runtime = substream->runtime;
1057         int i, err;
1058
1059         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1060         if (epcm == NULL)
1061                 return -ENOMEM;
1062         epcm->emu = emu;
1063         epcm->type = PLAYBACK_EMUVOICE;
1064         epcm->substream = substream;
1065         runtime->private_data = epcm;
1066         runtime->private_free = snd_emu10k1_pcm_free_substream;
1067         runtime->hw = snd_emu10k1_playback;
1068         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
1069                 kfree(epcm);
1070                 return err;
1071         }
1072         if ((err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX)) < 0) {
1073                 kfree(epcm);
1074                 return err;
1075         }
1076         mix = &emu->pcm_mixer[substream->number];
1077         for (i = 0; i < 4; i++)
1078                 mix->send_routing[0][i] = mix->send_routing[1][i] = mix->send_routing[2][i] = i;
1079         memset(&mix->send_volume, 0, sizeof(mix->send_volume));
1080         mix->send_volume[0][0] = mix->send_volume[0][1] =
1081         mix->send_volume[1][0] = mix->send_volume[2][1] = 255;
1082         mix->attn[0] = mix->attn[1] = mix->attn[2] = 0xffff;
1083         mix->epcm = epcm;
1084         snd_emu10k1_pcm_mixer_notify(emu, substream->number, 1);
1085         return 0;
1086 }
1087
1088 static int snd_emu10k1_playback_close(struct snd_pcm_substream *substream)
1089 {
1090         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1091         struct snd_emu10k1_pcm_mixer *mix = &emu->pcm_mixer[substream->number];
1092
1093         mix->epcm = NULL;
1094         snd_emu10k1_pcm_mixer_notify(emu, substream->number, 0);
1095         return 0;
1096 }
1097
1098 static int snd_emu10k1_capture_open(struct snd_pcm_substream *substream)
1099 {
1100         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1101         struct snd_pcm_runtime *runtime = substream->runtime;
1102         struct snd_emu10k1_pcm *epcm;
1103
1104         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1105         if (epcm == NULL)
1106                 return -ENOMEM;
1107         epcm->emu = emu;
1108         epcm->type = CAPTURE_AC97ADC;
1109         epcm->substream = substream;
1110         epcm->capture_ipr = IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL;
1111         epcm->capture_inte = INTE_ADCBUFENABLE;
1112         epcm->capture_ba_reg = ADCBA;
1113         epcm->capture_bs_reg = ADCBS;
1114         epcm->capture_idx_reg = emu->audigy ? A_ADCIDX : ADCIDX;
1115         runtime->private_data = epcm;
1116         runtime->private_free = snd_emu10k1_pcm_free_substream;
1117         runtime->hw = snd_emu10k1_capture;
1118         emu->capture_interrupt = snd_emu10k1_pcm_ac97adc_interrupt;
1119         emu->pcm_capture_substream = substream;
1120         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1121         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_capture_rates);
1122         return 0;
1123 }
1124
1125 static int snd_emu10k1_capture_close(struct snd_pcm_substream *substream)
1126 {
1127         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1128
1129         emu->capture_interrupt = NULL;
1130         emu->pcm_capture_substream = NULL;
1131         return 0;
1132 }
1133
1134 static int snd_emu10k1_capture_mic_open(struct snd_pcm_substream *substream)
1135 {
1136         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1137         struct snd_emu10k1_pcm *epcm;
1138         struct snd_pcm_runtime *runtime = substream->runtime;
1139
1140         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1141         if (epcm == NULL)
1142                 return -ENOMEM;
1143         epcm->emu = emu;
1144         epcm->type = CAPTURE_AC97MIC;
1145         epcm->substream = substream;
1146         epcm->capture_ipr = IPR_MICBUFFULL|IPR_MICBUFHALFFULL;
1147         epcm->capture_inte = INTE_MICBUFENABLE;
1148         epcm->capture_ba_reg = MICBA;
1149         epcm->capture_bs_reg = MICBS;
1150         epcm->capture_idx_reg = emu->audigy ? A_MICIDX : MICIDX;
1151         substream->runtime->private_data = epcm;
1152         substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1153         runtime->hw = snd_emu10k1_capture;
1154         runtime->hw.rates = SNDRV_PCM_RATE_8000;
1155         runtime->hw.rate_min = runtime->hw.rate_max = 8000;
1156         runtime->hw.channels_min = 1;
1157         emu->capture_mic_interrupt = snd_emu10k1_pcm_ac97mic_interrupt;
1158         emu->pcm_capture_mic_substream = substream;
1159         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1160         return 0;
1161 }
1162
1163 static int snd_emu10k1_capture_mic_close(struct snd_pcm_substream *substream)
1164 {
1165         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1166
1167         emu->capture_interrupt = NULL;
1168         emu->pcm_capture_mic_substream = NULL;
1169         return 0;
1170 }
1171
1172 static int snd_emu10k1_capture_efx_open(struct snd_pcm_substream *substream)
1173 {
1174         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1175         struct snd_emu10k1_pcm *epcm;
1176         struct snd_pcm_runtime *runtime = substream->runtime;
1177         int nefx = emu->audigy ? 64 : 32;
1178         int idx;
1179
1180         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1181         if (epcm == NULL)
1182                 return -ENOMEM;
1183         epcm->emu = emu;
1184         epcm->type = CAPTURE_EFX;
1185         epcm->substream = substream;
1186         epcm->capture_ipr = IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL;
1187         epcm->capture_inte = INTE_EFXBUFENABLE;
1188         epcm->capture_ba_reg = FXBA;
1189         epcm->capture_bs_reg = FXBS;
1190         epcm->capture_idx_reg = FXIDX;
1191         substream->runtime->private_data = epcm;
1192         substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1193         runtime->hw = snd_emu10k1_capture;
1194         runtime->hw.rates = SNDRV_PCM_RATE_48000;
1195         runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1196         spin_lock_irq(&emu->reg_lock);
1197         runtime->hw.channels_min = runtime->hw.channels_max = 0;
1198         for (idx = 0; idx < nefx; idx++) {
1199                 if (emu->efx_voices_mask[idx/32] & (1 << (idx%32))) {
1200                         runtime->hw.channels_min++;
1201                         runtime->hw.channels_max++;
1202                 }
1203         }
1204         epcm->capture_cr_val = emu->efx_voices_mask[0];
1205         epcm->capture_cr_val2 = emu->efx_voices_mask[1];
1206         spin_unlock_irq(&emu->reg_lock);
1207         emu->capture_efx_interrupt = snd_emu10k1_pcm_efx_interrupt;
1208         emu->pcm_capture_efx_substream = substream;
1209         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1210         return 0;
1211 }
1212
1213 static int snd_emu10k1_capture_efx_close(struct snd_pcm_substream *substream)
1214 {
1215         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1216
1217         emu->capture_interrupt = NULL;
1218         emu->pcm_capture_efx_substream = NULL;
1219         return 0;
1220 }
1221
1222 static struct snd_pcm_ops snd_emu10k1_playback_ops = {
1223         .open =                 snd_emu10k1_playback_open,
1224         .close =                snd_emu10k1_playback_close,
1225         .ioctl =                snd_pcm_lib_ioctl,
1226         .hw_params =            snd_emu10k1_playback_hw_params,
1227         .hw_free =              snd_emu10k1_playback_hw_free,
1228         .prepare =              snd_emu10k1_playback_prepare,
1229         .trigger =              snd_emu10k1_playback_trigger,
1230         .pointer =              snd_emu10k1_playback_pointer,
1231         .page =                 snd_pcm_sgbuf_ops_page,
1232 };
1233
1234 static struct snd_pcm_ops snd_emu10k1_capture_ops = {
1235         .open =                 snd_emu10k1_capture_open,
1236         .close =                snd_emu10k1_capture_close,
1237         .ioctl =                snd_pcm_lib_ioctl,
1238         .hw_params =            snd_emu10k1_capture_hw_params,
1239         .hw_free =              snd_emu10k1_capture_hw_free,
1240         .prepare =              snd_emu10k1_capture_prepare,
1241         .trigger =              snd_emu10k1_capture_trigger,
1242         .pointer =              snd_emu10k1_capture_pointer,
1243 };
1244
1245 /* EFX playback */
1246 static struct snd_pcm_ops snd_emu10k1_efx_playback_ops = {
1247         .open =                 snd_emu10k1_efx_playback_open,
1248         .close =                snd_emu10k1_efx_playback_close,
1249         .ioctl =                snd_pcm_lib_ioctl,
1250         .hw_params =            snd_emu10k1_playback_hw_params,
1251         .hw_free =              snd_emu10k1_efx_playback_hw_free,
1252         .prepare =              snd_emu10k1_efx_playback_prepare,
1253         .trigger =              snd_emu10k1_efx_playback_trigger,
1254         .pointer =              snd_emu10k1_efx_playback_pointer,
1255         .page =                 snd_pcm_sgbuf_ops_page,
1256 };
1257
1258 int __devinit snd_emu10k1_pcm(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1259 {
1260         struct snd_pcm *pcm;
1261         struct snd_pcm_substream *substream;
1262         int err;
1263
1264         if (rpcm)
1265                 *rpcm = NULL;
1266
1267         if ((err = snd_pcm_new(emu->card, "emu10k1", device, 32, 1, &pcm)) < 0)
1268                 return err;
1269
1270         pcm->private_data = emu;
1271
1272         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_playback_ops);
1273         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_ops);
1274
1275         pcm->info_flags = 0;
1276         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1277         strcpy(pcm->name, "ADC Capture/Standard PCM Playback");
1278         emu->pcm = pcm;
1279
1280         for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1281                 if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
1282                         return err;
1283
1284         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substream->next)
1285                 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1286
1287         if (rpcm)
1288                 *rpcm = pcm;
1289
1290         return 0;
1291 }
1292
1293 int __devinit snd_emu10k1_pcm_multi(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1294 {
1295         struct snd_pcm *pcm;
1296         struct snd_pcm_substream *substream;
1297         int err;
1298
1299         if (rpcm)
1300                 *rpcm = NULL;
1301
1302         if ((err = snd_pcm_new(emu->card, "emu10k1", device, 1, 0, &pcm)) < 0)
1303                 return err;
1304
1305         pcm->private_data = emu;
1306
1307         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_efx_playback_ops);
1308
1309         pcm->info_flags = 0;
1310         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1311         strcpy(pcm->name, "Multichannel Playback");
1312         emu->pcm = pcm;
1313
1314         for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1315                 if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
1316                         return err;
1317
1318         if (rpcm)
1319                 *rpcm = pcm;
1320
1321         return 0;
1322 }
1323
1324
1325 static struct snd_pcm_ops snd_emu10k1_capture_mic_ops = {
1326         .open =                 snd_emu10k1_capture_mic_open,
1327         .close =                snd_emu10k1_capture_mic_close,
1328         .ioctl =                snd_pcm_lib_ioctl,
1329         .hw_params =            snd_emu10k1_capture_hw_params,
1330         .hw_free =              snd_emu10k1_capture_hw_free,
1331         .prepare =              snd_emu10k1_capture_prepare,
1332         .trigger =              snd_emu10k1_capture_trigger,
1333         .pointer =              snd_emu10k1_capture_pointer,
1334 };
1335
1336 int __devinit snd_emu10k1_pcm_mic(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1337 {
1338         struct snd_pcm *pcm;
1339         int err;
1340
1341         if (rpcm)
1342                 *rpcm = NULL;
1343
1344         if ((err = snd_pcm_new(emu->card, "emu10k1 mic", device, 0, 1, &pcm)) < 0)
1345                 return err;
1346
1347         pcm->private_data = emu;
1348
1349         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_mic_ops);
1350
1351         pcm->info_flags = 0;
1352         strcpy(pcm->name, "Mic Capture");
1353         emu->pcm_mic = pcm;
1354
1355         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1356
1357         if (rpcm)
1358                 *rpcm = pcm;
1359         return 0;
1360 }
1361
1362 static int snd_emu10k1_pcm_efx_voices_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1363 {
1364         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1365         int nefx = emu->audigy ? 64 : 32;
1366         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1367         uinfo->count = nefx;
1368         uinfo->value.integer.min = 0;
1369         uinfo->value.integer.max = 1;
1370         return 0;
1371 }
1372
1373 static int snd_emu10k1_pcm_efx_voices_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1374 {
1375         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1376         int nefx = emu->audigy ? 64 : 32;
1377         int idx;
1378
1379         spin_lock_irq(&emu->reg_lock);
1380         for (idx = 0; idx < nefx; idx++)
1381                 ucontrol->value.integer.value[idx] = (emu->efx_voices_mask[idx / 32] & (1 << (idx % 32))) ? 1 : 0;
1382         spin_unlock_irq(&emu->reg_lock);
1383         return 0;
1384 }
1385
1386 static int snd_emu10k1_pcm_efx_voices_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1387 {
1388         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1389         unsigned int nval[2], bits;
1390         int nefx = emu->audigy ? 64 : 32;
1391         int nefxb = emu->audigy ? 7 : 6;
1392         int change, idx;
1393
1394         nval[0] = nval[1] = 0;
1395         for (idx = 0, bits = 0; idx < nefx; idx++)
1396                 if (ucontrol->value.integer.value[idx]) {
1397                         nval[idx / 32] |= 1 << (idx % 32);
1398                         bits++;
1399                 }
1400
1401         for (idx = 0; idx < nefxb; idx++)
1402                 if (1 << idx == bits)
1403                         break;
1404
1405         if (idx >= nefxb)
1406                 return -EINVAL;
1407
1408         spin_lock_irq(&emu->reg_lock);
1409         change = (nval[0] != emu->efx_voices_mask[0]) ||
1410                 (nval[1] != emu->efx_voices_mask[1]);
1411         emu->efx_voices_mask[0] = nval[0];
1412         emu->efx_voices_mask[1] = nval[1];
1413         spin_unlock_irq(&emu->reg_lock);
1414         return change;
1415 }
1416
1417 static struct snd_kcontrol_new snd_emu10k1_pcm_efx_voices_mask = {
1418         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1419         .name = "Captured FX8010 Outputs",
1420         .info = snd_emu10k1_pcm_efx_voices_mask_info,
1421         .get = snd_emu10k1_pcm_efx_voices_mask_get,
1422         .put = snd_emu10k1_pcm_efx_voices_mask_put
1423 };
1424
1425 static struct snd_pcm_ops snd_emu10k1_capture_efx_ops = {
1426         .open =                 snd_emu10k1_capture_efx_open,
1427         .close =                snd_emu10k1_capture_efx_close,
1428         .ioctl =                snd_pcm_lib_ioctl,
1429         .hw_params =            snd_emu10k1_capture_hw_params,
1430         .hw_free =              snd_emu10k1_capture_hw_free,
1431         .prepare =              snd_emu10k1_capture_prepare,
1432         .trigger =              snd_emu10k1_capture_trigger,
1433         .pointer =              snd_emu10k1_capture_pointer,
1434 };
1435
1436
1437 /* EFX playback */
1438
1439 #define INITIAL_TRAM_SHIFT     14
1440 #define INITIAL_TRAM_POS(size) ((((size) / 2) - INITIAL_TRAM_SHIFT) - 1)
1441
1442 static void snd_emu10k1_fx8010_playback_irq(struct snd_emu10k1 *emu, void *private_data)
1443 {
1444         struct snd_pcm_substream *substream = private_data;
1445         snd_pcm_period_elapsed(substream);
1446 }
1447
1448 static void snd_emu10k1_fx8010_playback_tram_poke1(unsigned short *dst_left,
1449                                                    unsigned short *dst_right,
1450                                                    unsigned short *src,
1451                                                    unsigned int count,
1452                                                    unsigned int tram_shift)
1453 {
1454         // printk("tram_poke1: dst_left = 0x%p, dst_right = 0x%p, src = 0x%p, count = 0x%x\n", dst_left, dst_right, src, count);
1455         if ((tram_shift & 1) == 0) {
1456                 while (count--) {
1457                         *dst_left-- = *src++;
1458                         *dst_right-- = *src++;
1459                 }
1460         } else {
1461                 while (count--) {
1462                         *dst_right-- = *src++;
1463                         *dst_left-- = *src++;
1464                 }
1465         }
1466 }
1467
1468 static void fx8010_pb_trans_copy(struct snd_pcm_substream *substream,
1469                                  struct snd_pcm_indirect *rec, size_t bytes)
1470 {
1471         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1472         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1473         unsigned int tram_size = pcm->buffer_size;
1474         unsigned short *src = (unsigned short *)(substream->runtime->dma_area + rec->sw_data);
1475         unsigned int frames = bytes >> 2, count;
1476         unsigned int tram_pos = pcm->tram_pos;
1477         unsigned int tram_shift = pcm->tram_shift;
1478
1479         while (frames > tram_pos) {
1480                 count = tram_pos + 1;
1481                 snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1482                                                        (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1483                                                        src, count, tram_shift);
1484                 src += count * 2;
1485                 frames -= count;
1486                 tram_pos = (tram_size / 2) - 1;
1487                 tram_shift++;
1488         }
1489         snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1490                                                (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1491                                                src, frames, tram_shift);
1492         tram_pos -= frames;
1493         pcm->tram_pos = tram_pos;
1494         pcm->tram_shift = tram_shift;
1495 }
1496
1497 static int snd_emu10k1_fx8010_playback_transfer(struct snd_pcm_substream *substream)
1498 {
1499         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1500         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1501
1502         snd_pcm_indirect_playback_transfer(substream, &pcm->pcm_rec, fx8010_pb_trans_copy);
1503         return 0;
1504 }
1505
1506 static int snd_emu10k1_fx8010_playback_hw_params(struct snd_pcm_substream *substream,
1507                                                  struct snd_pcm_hw_params *hw_params)
1508 {
1509         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1510 }
1511
1512 static int snd_emu10k1_fx8010_playback_hw_free(struct snd_pcm_substream *substream)
1513 {
1514         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1515         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1516         unsigned int i;
1517
1518         for (i = 0; i < pcm->channels; i++)
1519                 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, 0);
1520         snd_pcm_lib_free_pages(substream);
1521         return 0;
1522 }
1523
1524 static int snd_emu10k1_fx8010_playback_prepare(struct snd_pcm_substream *substream)
1525 {
1526         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1527         struct snd_pcm_runtime *runtime = substream->runtime;
1528         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1529         unsigned int i;
1530
1531         // 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);
1532         memset(&pcm->pcm_rec, 0, sizeof(pcm->pcm_rec));
1533         pcm->pcm_rec.hw_buffer_size = pcm->buffer_size * 2; /* byte size */
1534         pcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1535         pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1536         pcm->tram_shift = 0;
1537         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_running, 0, 0);     /* reset */
1538         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);     /* reset */
1539         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_size, 0, runtime->buffer_size);
1540         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_ptr, 0, 0);         /* reset ptr number */
1541         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_count, 0, runtime->period_size);
1542         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_tmpcount, 0, runtime->period_size);
1543         for (i = 0; i < pcm->channels; i++)
1544                 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, (TANKMEMADDRREG_READ|TANKMEMADDRREG_ALIGN) + i * (runtime->buffer_size / pcm->channels));
1545         return 0;
1546 }
1547
1548 static int snd_emu10k1_fx8010_playback_trigger(struct snd_pcm_substream *substream, int cmd)
1549 {
1550         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1551         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1552         int result = 0;
1553
1554         spin_lock(&emu->reg_lock);
1555         switch (cmd) {
1556         case SNDRV_PCM_TRIGGER_START:
1557                 /* follow thru */
1558         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1559 #ifdef EMU10K1_SET_AC3_IEC958
1560         {
1561                 int i;
1562                 for (i = 0; i < 3; i++) {
1563                         unsigned int bits;
1564                         bits = SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1565                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | SPCS_GENERATIONSTATUS |
1566                                0x00001200 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT | SPCS_NOTAUDIODATA;
1567                         snd_emu10k1_ptr_write(emu, SPCS0 + i, 0, bits);
1568                 }
1569         }
1570 #endif
1571                 result = snd_emu10k1_fx8010_register_irq_handler(emu, snd_emu10k1_fx8010_playback_irq, pcm->gpr_running, substream, &pcm->irq);
1572                 if (result < 0)
1573                         goto __err;
1574                 snd_emu10k1_fx8010_playback_transfer(substream);        /* roll the ball */
1575                 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 1);
1576                 break;
1577         case SNDRV_PCM_TRIGGER_STOP:
1578         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1579                 snd_emu10k1_fx8010_unregister_irq_handler(emu, pcm->irq); pcm->irq = NULL;
1580                 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);
1581                 pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1582                 pcm->tram_shift = 0;
1583                 break;
1584         default:
1585                 result = -EINVAL;
1586                 break;
1587         }
1588       __err:
1589         spin_unlock(&emu->reg_lock);
1590         return result;
1591 }
1592
1593 static snd_pcm_uframes_t snd_emu10k1_fx8010_playback_pointer(struct snd_pcm_substream *substream)
1594 {
1595         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1596         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1597         size_t ptr; /* byte pointer */
1598
1599         if (!snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_trigger, 0))
1600                 return 0;
1601         ptr = snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_ptr, 0) << 2;
1602         return snd_pcm_indirect_playback_pointer(substream, &pcm->pcm_rec, ptr);
1603 }
1604
1605 static struct snd_pcm_hardware snd_emu10k1_fx8010_playback =
1606 {
1607         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1608                                  /* SNDRV_PCM_INFO_MMAP_VALID | */ SNDRV_PCM_INFO_PAUSE),
1609         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1610         .rates =                SNDRV_PCM_RATE_48000,
1611         .rate_min =             48000,
1612         .rate_max =             48000,
1613         .channels_min =         1,
1614         .channels_max =         1,
1615         .buffer_bytes_max =     (128*1024),
1616         .period_bytes_min =     1024,
1617         .period_bytes_max =     (128*1024),
1618         .periods_min =          1,
1619         .periods_max =          1024,
1620         .fifo_size =            0,
1621 };
1622
1623 static int snd_emu10k1_fx8010_playback_open(struct snd_pcm_substream *substream)
1624 {
1625         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1626         struct snd_pcm_runtime *runtime = substream->runtime;
1627         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1628
1629         runtime->hw = snd_emu10k1_fx8010_playback;
1630         runtime->hw.channels_min = runtime->hw.channels_max = pcm->channels;
1631         runtime->hw.period_bytes_max = (pcm->buffer_size * 2) / 2;
1632         spin_lock_irq(&emu->reg_lock);
1633         if (pcm->valid == 0) {
1634                 spin_unlock_irq(&emu->reg_lock);
1635                 return -ENODEV;
1636         }
1637         pcm->opened = 1;
1638         spin_unlock_irq(&emu->reg_lock);
1639         return 0;
1640 }
1641
1642 static int snd_emu10k1_fx8010_playback_close(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
1647         spin_lock_irq(&emu->reg_lock);
1648         pcm->opened = 0;
1649         spin_unlock_irq(&emu->reg_lock);
1650         return 0;
1651 }
1652
1653 static struct snd_pcm_ops snd_emu10k1_fx8010_playback_ops = {
1654         .open =                 snd_emu10k1_fx8010_playback_open,
1655         .close =                snd_emu10k1_fx8010_playback_close,
1656         .ioctl =                snd_pcm_lib_ioctl,
1657         .hw_params =            snd_emu10k1_fx8010_playback_hw_params,
1658         .hw_free =              snd_emu10k1_fx8010_playback_hw_free,
1659         .prepare =              snd_emu10k1_fx8010_playback_prepare,
1660         .trigger =              snd_emu10k1_fx8010_playback_trigger,
1661         .pointer =              snd_emu10k1_fx8010_playback_pointer,
1662         .ack =                  snd_emu10k1_fx8010_playback_transfer,
1663 };
1664
1665 int __devinit snd_emu10k1_pcm_efx(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1666 {
1667         struct snd_pcm *pcm;
1668         struct snd_kcontrol *kctl;
1669         int err;
1670
1671         if (rpcm)
1672                 *rpcm = NULL;
1673
1674         if ((err = snd_pcm_new(emu->card, "emu10k1 efx", device, 8, 1, &pcm)) < 0)
1675                 return err;
1676
1677         pcm->private_data = emu;
1678
1679         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_fx8010_playback_ops);
1680         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_efx_ops);
1681
1682         pcm->info_flags = 0;
1683         strcpy(pcm->name, "Multichannel Capture/PT Playback");
1684         emu->pcm_efx = pcm;
1685         if (rpcm)
1686                 *rpcm = pcm;
1687
1688         /* EFX capture - record the "FXBUS2" channels, by default we connect the EXTINs
1689          * to these
1690          */
1691
1692         /* emu->efx_voices_mask[0] = FXWC_DEFAULTROUTE_C | FXWC_DEFAULTROUTE_A; */
1693         if (emu->audigy) {
1694                 emu->efx_voices_mask[0] = 0;
1695                 emu->efx_voices_mask[1] = 0xffff;
1696         } else {
1697                 emu->efx_voices_mask[0] = 0xffff0000;
1698                 emu->efx_voices_mask[1] = 0;
1699         }
1700         kctl = snd_ctl_new1(&snd_emu10k1_pcm_efx_voices_mask, emu);
1701         if (!kctl)
1702                 return -ENOMEM;
1703         kctl->id.device = device;
1704         snd_ctl_add(emu->card, kctl);
1705
1706         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1707
1708         return 0;
1709 }