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  *
   6  *  BUGS:
   7  *    --
   8  *
   9  *  TODO:
  10  *    --
  11  *
  12  *   This program is free software; you can redistribute it and/or modify
  13  *   it under the terms of the GNU General Public License as published by
  14  *   the Free Software Foundation; either version 2 of the License, or
  15  *   (at your option) any later version.
  16  *
  17  *   This program is distributed in the hope that it will be useful,
  18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *   GNU General Public License for more details.
  21  *
  22  *   You should have received a copy of the GNU General Public License
  23  *   along with this program; if not, write to the Free Software
  24  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  25  *
  26  */
  27
  28 #include <sound/driver.h>
  29 #include <linux/pci.h>
  30 #include <linux/delay.h>
  31 #include <linux/slab.h>
  32 #include <linux/time.h>
  33 #include <linux/init.h>
  34 #include <sound/core.h>
  35 #include <sound/emu10k1.h>
  36
  37 static void snd_emu10k1_pcm_interrupt(emu10k1_t *emu, emu10k1_voice_t *voice)
  38 {
  39         emu10k1_pcm_t *epcm;
  40
  41         if ((epcm = voice->epcm) == NULL)
  42                 return;
  43         if (epcm->substream == NULL)
  44                 return;
  45 #if 0
  46         printk("IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
  47                         epcm->substream->runtime->hw->pointer(emu, epcm->substream),
  48                         snd_pcm_lib_period_bytes(epcm->substream),
  49                         snd_pcm_lib_buffer_bytes(epcm->substream));
  50 #endif
  51         snd_pcm_period_elapsed(epcm->substream);
  52 }
  53
  54 static void snd_emu10k1_pcm_ac97adc_interrupt(emu10k1_t *emu, unsigned int status)
  55 {
  56 #if 0
  57         if (status & IPR_ADCBUFHALFFULL) {
  58                 if (emu->pcm_capture_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
  59                         return;
  60         }
  61 #endif
  62         snd_pcm_period_elapsed(emu->pcm_capture_substream);
  63 }
  64
  65 static void snd_emu10k1_pcm_ac97mic_interrupt(emu10k1_t *emu, unsigned int status)
  66 {
  67 #if 0
  68         if (status & IPR_MICBUFHALFFULL) {
  69                 if (emu->pcm_capture_mic_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
  70                         return;
  71         }
  72 #endif
  73         snd_pcm_period_elapsed(emu->pcm_capture_mic_substream);
  74 }
  75
  76 static void snd_emu10k1_pcm_efx_interrupt(emu10k1_t *emu, unsigned int status)
  77 {
  78 #if 0
  79         if (status & IPR_EFXBUFHALFFULL) {
  80                 if (emu->pcm_capture_efx_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
  81                         return;
  82         }
  83 #endif
  84         snd_pcm_period_elapsed(emu->pcm_capture_efx_substream);
  85 }
  86
  87 static int snd_emu10k1_pcm_channel_alloc(emu10k1_pcm_t * epcm, int voices)
  88 {
  89         int err;
  90
  91         if (epcm->voices[1] != NULL && voices < 2) {
  92                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
  93                 epcm->voices[1] = NULL;
  94         }
  95         if (voices == 1 && epcm->voices[0] != NULL)
  96                 return 0;               /* already allocated */
  97         if (voices == 2 && epcm->voices[0] != NULL && epcm->voices[1] != NULL)
  98                 return 0;
  99         if (voices > 1) {
 100                 if (epcm->voices[0] != NULL && epcm->voices[1] == NULL) {
 101                         snd_emu10k1_voice_free(epcm->emu, epcm->voices[0]);
 102                         epcm->voices[0] = NULL;
 103                 }
 104         }
 105         err = snd_emu10k1_voice_alloc(epcm->emu, EMU10K1_PCM, voices > 1, &epcm->voices[0]);
 106         if (err < 0)
 107                 return err;
 108         epcm->voices[0]->epcm = epcm;
 109         if (voices > 1) {
 110                 epcm->voices[1] = &epcm->emu->voices[epcm->voices[0]->number + 1];
 111                 epcm->voices[1]->epcm = epcm;
 112         }
 113         if (epcm->extra == NULL) {
 114                 err = snd_emu10k1_voice_alloc(epcm->emu, EMU10K1_PCM, 0, &epcm->extra);
 115                 if (err < 0) {
 116                         // printk("pcm_channel_alloc: failed extra: voices=%d, frame=%d\n", voices, frame);
 117                         snd_emu10k1_voice_free(epcm->emu, epcm->voices[0]);
 118                         epcm->voices[0] = NULL;
 119                         if (epcm->voices[1])
 120                                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
 121                         epcm->voices[1] = NULL;
 122                         return err;
 123                 }
 124                 epcm->extra->epcm = epcm;
 125                 epcm->extra->interrupt = snd_emu10k1_pcm_interrupt;
 126         }
 127         return 0;
 128 }
 129
 130 static unsigned int capture_period_sizes[31] = {
 131         384,    448,    512,    640,
 132         384*2,  448*2,  512*2,  640*2,
 133         384*4,  448*4,  512*4,  640*4,
 134         384*8,  448*8,  512*8,  640*8,
 135         384*16, 448*16, 512*16, 640*16,
 136         384*32, 448*32, 512*32, 640*32,
 137         384*64, 448*64, 512*64, 640*64,
 138         384*128,448*128,512*128
 139 };
 140
 141 static snd_pcm_hw_constraint_list_t hw_constraints_capture_period_sizes = {
 142         .count = 31,
 143         .list = capture_period_sizes,
 144         .mask = 0
 145 };
 146
 147 static unsigned int capture_rates[8] = {
 148         8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000
 149 };
 150
 151 static snd_pcm_hw_constraint_list_t hw_constraints_capture_rates = {
 152         .count = 8,
 153         .list = capture_rates,
 154         .mask = 0
 155 };
 156
 157 static unsigned int snd_emu10k1_capture_rate_reg(unsigned int rate)
 158 {
 159         switch (rate) {
 160         case 8000:      return ADCCR_SAMPLERATE_8;
 161         case 11025:     return ADCCR_SAMPLERATE_11;
 162         case 16000:     return ADCCR_SAMPLERATE_16;
 163         case 22050:     return ADCCR_SAMPLERATE_22;
 164         case 24000:     return ADCCR_SAMPLERATE_24;
 165         case 32000:     return ADCCR_SAMPLERATE_32;
 166         case 44100:     return ADCCR_SAMPLERATE_44;
 167         case 48000:     return ADCCR_SAMPLERATE_48;
 168         default:
 169                         snd_BUG();
 170                         return ADCCR_SAMPLERATE_8;
 171         }
 172 }
 173
 174 static unsigned int snd_emu10k1_audigy_capture_rate_reg(unsigned int rate)
 175 {
 176         switch (rate) {
 177         case 8000:      return A_ADCCR_SAMPLERATE_8;
 178         case 11025:     return A_ADCCR_SAMPLERATE_11;
 179         case 12000:     return A_ADCCR_SAMPLERATE_12; /* really supported? */
 180         case 16000:     return ADCCR_SAMPLERATE_16;
 181         case 22050:     return ADCCR_SAMPLERATE_22;
 182         case 24000:     return ADCCR_SAMPLERATE_24;
 183         case 32000:     return ADCCR_SAMPLERATE_32;
 184         case 44100:     return ADCCR_SAMPLERATE_44;
 185         case 48000:     return ADCCR_SAMPLERATE_48;
 186         default:
 187                         snd_BUG();
 188                         return A_ADCCR_SAMPLERATE_8;
 189         }
 190 }
 191
 192 static unsigned int emu10k1_calc_pitch_target(unsigned int rate)
 193 {
 194         unsigned int pitch_target;
 195
 196         pitch_target = (rate << 8) / 375;
 197         pitch_target = (pitch_target >> 1) + (pitch_target & 1);
 198         return pitch_target;
 199 }
 200
 201 #define PITCH_48000 0x00004000
 202 #define PITCH_96000 0x00008000
 203 #define PITCH_85000 0x00007155
 204 #define PITCH_80726 0x00006ba2
 205 #define PITCH_67882 0x00005a82
 206 #define PITCH_57081 0x00004c1c
 207
 208 static unsigned int emu10k1_select_interprom(unsigned int pitch_target)
 209 {
 210         if (pitch_target == PITCH_48000)
 211                 return CCCA_INTERPROM_0;
 212         else if (pitch_target < PITCH_48000)
 213                 return CCCA_INTERPROM_1;
 214         else if (pitch_target >= PITCH_96000)
 215                 return CCCA_INTERPROM_0;
 216         else if (pitch_target >= PITCH_85000)
 217                 return CCCA_INTERPROM_6;
 218         else if (pitch_target >= PITCH_80726)
 219                 return CCCA_INTERPROM_5;
 220         else if (pitch_target >= PITCH_67882)
 221                 return CCCA_INTERPROM_4;
 222         else if (pitch_target >= PITCH_57081)
 223                 return CCCA_INTERPROM_3;
 224         else
 225                 return CCCA_INTERPROM_2;
 226 }
 227
 228
 229 static void snd_emu10k1_pcm_init_voice(emu10k1_t *emu,
 230                                        int master, int extra,
 231                                        emu10k1_voice_t *evoice,
 232                                        unsigned int start_addr,
 233                                        unsigned int end_addr)
 234 {
 235         snd_pcm_substream_t *substream = evoice->epcm->substream;
 236         snd_pcm_runtime_t *runtime = substream->runtime;
 237         emu10k1_pcm_mixer_t *mix = &emu->pcm_mixer[substream->number];
 238         unsigned int silent_page, tmp;
 239         int voice, stereo, w_16;
 240         unsigned char attn, send_amount[8];
 241         unsigned char send_routing[8];
 242         unsigned long flags;
 243         unsigned int pitch_target;
 244
 245         voice = evoice->number;
 246         stereo = runtime->channels == 2;
 247         w_16 = snd_pcm_format_width(runtime->format) == 16;
 248
 249         if (!extra && stereo) {
 250                 start_addr >>= 1;
 251                 end_addr >>= 1;
 252         }
 253         if (w_16) {
 254                 start_addr >>= 1;
 255                 end_addr >>= 1;
 256         }
 257
 258         spin_lock_irqsave(&emu->reg_lock, flags);
 259
 260         /* volume parameters */
 261         if (extra) {
 262                 attn = 0;
 263                 memset(send_routing, 0, sizeof(send_routing));
 264                 send_routing[0] = 0;
 265                 send_routing[1] = 1;
 266                 send_routing[2] = 2;
 267                 send_routing[3] = 3;
 268                 memset(send_amount, 0, sizeof(send_amount));
 269         } else {
 270                 tmp = stereo ? (master ? 1 : 2) : 0;
 271                 memcpy(send_routing, &mix->send_routing[tmp][0], 8);
 272                 memcpy(send_amount, &mix->send_volume[tmp][0], 8);
 273         }
 274
 275         if (master) {
 276                 unsigned int ccis = stereo ? 28 : 30;
 277                 if (w_16)
 278                         ccis *= 2;
 279                 evoice->epcm->ccca_start_addr = start_addr + ccis;
 280                 if (extra) {
 281                         start_addr += ccis;
 282                         end_addr += ccis;
 283                 }
 284                 if (stereo && !extra) {
 285                         snd_emu10k1_ptr_write(emu, CPF, voice, CPF_STEREO_MASK);
 286                         snd_emu10k1_ptr_write(emu, CPF, (voice + 1), CPF_STEREO_MASK);
 287                 } else {
 288                         snd_emu10k1_ptr_write(emu, CPF, voice, 0);
 289                 }
 290         }
 291
 292         // setup routing
 293         if (emu->audigy) {
 294                 snd_emu10k1_ptr_write(emu, A_FXRT1, voice,
 295                                       ((unsigned int)send_routing[3] << 24) |
 296                                       ((unsigned int)send_routing[2] << 16) |
 297                                       ((unsigned int)send_routing[1] << 8) |
 298                                       (unsigned int)send_routing[0]);
 299                 snd_emu10k1_ptr_write(emu, A_FXRT2, voice,
 300                                       ((unsigned int)send_routing[7] << 24) |
 301                                       ((unsigned int)send_routing[6] << 16) |
 302                                       ((unsigned int)send_routing[5] << 8) |
 303                                       (unsigned int)send_routing[4]);
 304                 snd_emu10k1_ptr_write(emu, A_SENDAMOUNTS, voice,
 305                                       ((unsigned int)send_amount[4] << 24) |
 306                                       ((unsigned int)send_amount[5] << 16) |
 307                                       ((unsigned int)send_amount[6] << 8) |
 308                                       (unsigned int)send_amount[7]);
 309         } else
 310                 snd_emu10k1_ptr_write(emu, FXRT, voice,
 311                                       snd_emu10k1_compose_send_routing(send_routing));
 312         // Stop CA
 313         // Assumption that PT is already 0 so no harm overwriting
 314         snd_emu10k1_ptr_write(emu, PTRX, voice, (send_amount[0] << 8) | send_amount[1]);
 315         snd_emu10k1_ptr_write(emu, DSL, voice, end_addr | (send_amount[3] << 24));
 316         snd_emu10k1_ptr_write(emu, PSST, voice, start_addr | (send_amount[2] << 24));
 317         pitch_target = emu10k1_calc_pitch_target(runtime->rate);
 318         snd_emu10k1_ptr_write(emu, CCCA, voice, evoice->epcm->ccca_start_addr |
 319                               emu10k1_select_interprom(pitch_target) |
 320                               (w_16 ? 0 : CCCA_8BITSELECT));
 321         // Clear filter delay memory
 322         snd_emu10k1_ptr_write(emu, Z1, voice, 0);
 323         snd_emu10k1_ptr_write(emu, Z2, voice, 0);
 324         // invalidate maps
 325         silent_page = ((unsigned int)emu->silent_page.addr << 1) | MAP_PTI_MASK;
 326         snd_emu10k1_ptr_write(emu, MAPA, voice, silent_page);
 327         snd_emu10k1_ptr_write(emu, MAPB, voice, silent_page);
 328         // modulation envelope
 329         snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
 330         snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
 331         snd_emu10k1_ptr_write(emu, ATKHLDM, voice, 0);
 332         snd_emu10k1_ptr_write(emu, DCYSUSM, voice, 0x007f);
 333         snd_emu10k1_ptr_write(emu, LFOVAL1, voice, 0x8000);
 334         snd_emu10k1_ptr_write(emu, LFOVAL2, voice, 0x8000);
 335         snd_emu10k1_ptr_write(emu, FMMOD, voice, 0);
 336         snd_emu10k1_ptr_write(emu, TREMFRQ, voice, 0);
 337         snd_emu10k1_ptr_write(emu, FM2FRQ2, voice, 0);
 338         snd_emu10k1_ptr_write(emu, ENVVAL, voice, 0x8000);
 339         // volume envelope
 340         snd_emu10k1_ptr_write(emu, ATKHLDV, voice, 0x7f7f);
 341         snd_emu10k1_ptr_write(emu, ENVVOL, voice, 0x0000);
 342         // filter envelope
 343         snd_emu10k1_ptr_write(emu, PEFE_FILTERAMOUNT, voice, 0x7f);
 344         // pitch envelope
 345         snd_emu10k1_ptr_write(emu, PEFE_PITCHAMOUNT, voice, 0);
 346
 347         spin_unlock_irqrestore(&emu->reg_lock, flags);
 348 }
 349
 350 static int snd_emu10k1_playback_hw_params(snd_pcm_substream_t * substream,
 351                                           snd_pcm_hw_params_t * hw_params)
 352 {
 353         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 354         snd_pcm_runtime_t *runtime = substream->runtime;
 355         emu10k1_pcm_t *epcm = runtime->private_data;
 356         int err;
 357
 358         if ((err = snd_emu10k1_pcm_channel_alloc(epcm, params_channels(hw_params))) < 0)
 359                 return err;
 360         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 361                 return err;
 362         if (err > 0) {  /* change */
 363                 snd_util_memblk_t *memblk;
 364                 if (epcm->memblk != NULL)
 365                         snd_emu10k1_free_pages(emu, epcm->memblk);
 366                 memblk = snd_emu10k1_alloc_pages(emu, substream);
 367                 if ((epcm->memblk = memblk) == NULL || ((emu10k1_memblk_t *)memblk)->mapped_page < 0) {
 368                         epcm->start_addr = 0;
 369                         return -ENOMEM;
 370                 }
 371                 epcm->start_addr = ((emu10k1_memblk_t *)memblk)->mapped_page << PAGE_SHIFT;
 372         }
 373         return 0;
 374 }
 375
 376 static int snd_emu10k1_playback_hw_free(snd_pcm_substream_t * substream)
 377 {
 378         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 379         snd_pcm_runtime_t *runtime = substream->runtime;
 380         emu10k1_pcm_t *epcm;
 381
 382         if (runtime->private_data == NULL)
 383                 return 0;
 384         epcm = runtime->private_data;
 385         if (epcm->extra) {
 386                 snd_emu10k1_voice_free(epcm->emu, epcm->extra);
 387                 epcm->extra = NULL;
 388         }
 389         if (epcm->voices[1]) {
 390                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
 391                 epcm->voices[1] = NULL;
 392         }
 393         if (epcm->voices[0]) {
 394                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[0]);
 395                 epcm->voices[0] = NULL;
 396         }
 397         if (epcm->memblk) {
 398                 snd_emu10k1_free_pages(emu, epcm->memblk);
 399                 epcm->memblk = NULL;
 400                 epcm->start_addr = 0;
 401         }
 402         snd_pcm_lib_free_pages(substream);
 403         return 0;
 404 }
 405
 406 static int snd_emu10k1_playback_prepare(snd_pcm_substream_t * substream)
 407 {
 408         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 409         snd_pcm_runtime_t *runtime = substream->runtime;
 410         emu10k1_pcm_t *epcm = runtime->private_data;
 411         unsigned int start_addr, end_addr;
 412
 413         start_addr = epcm->start_addr;
 414         end_addr = snd_pcm_lib_period_bytes(substream);
 415         if (runtime->channels == 2)
 416                 end_addr >>= 1;
 417         end_addr += start_addr;
 418         snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
 419                                    start_addr, end_addr);
 420         end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream);
 421         snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
 422                                    start_addr, end_addr);
 423         if (epcm->voices[1])
 424                 snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[1],
 425                                            start_addr, end_addr);
 426         return 0;
 427 }
 428
 429 static int snd_emu10k1_capture_hw_params(snd_pcm_substream_t * substream,
 430                                          snd_pcm_hw_params_t * hw_params)
 431 {
 432         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 433 }
 434
 435 static int snd_emu10k1_capture_hw_free(snd_pcm_substream_t * substream)
 436 {
 437         return snd_pcm_lib_free_pages(substream);
 438 }
 439
 440 static int snd_emu10k1_capture_prepare(snd_pcm_substream_t * substream)
 441 {
 442         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 443         snd_pcm_runtime_t *runtime = substream->runtime;
 444         emu10k1_pcm_t *epcm = runtime->private_data;
 445         int idx;
 446
 447         snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
 448         switch (epcm->type) {
 449         case CAPTURE_AC97ADC:
 450                 snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
 451                 break;
 452         case CAPTURE_EFX:
 453                 if (emu->audigy) {
 454                         snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
 455                         snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
 456                 } else
 457                         snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
 458                 break;
 459         default:
 460                 break;
 461         }
 462         snd_emu10k1_ptr_write(emu, epcm->capture_ba_reg, 0, runtime->dma_addr);
 463         epcm->capture_bufsize = snd_pcm_lib_buffer_bytes(substream);
 464         epcm->capture_bs_val = 0;
 465         for (idx = 0; idx < 31; idx++) {
 466                 if (capture_period_sizes[idx] == epcm->capture_bufsize) {
 467                         epcm->capture_bs_val = idx + 1;
 468                         break;
 469                 }
 470         }
 471         if (epcm->capture_bs_val == 0) {
 472                 snd_BUG();
 473                 epcm->capture_bs_val++;
 474         }
 475         if (epcm->type == CAPTURE_AC97ADC) {
 476                 epcm->capture_cr_val = emu->audigy ? A_ADCCR_LCHANENABLE : ADCCR_LCHANENABLE;
 477                 if (runtime->channels > 1)
 478                         epcm->capture_cr_val |= emu->audigy ? A_ADCCR_RCHANENABLE : ADCCR_RCHANENABLE;
 479                 epcm->capture_cr_val |= emu->audigy ?
 480                         snd_emu10k1_audigy_capture_rate_reg(runtime->rate) :
 481                         snd_emu10k1_capture_rate_reg(runtime->rate);
 482         }
 483         return 0;
 484 }
 485
 486 static void snd_emu10k1_playback_invalidate_cache(emu10k1_t *emu, emu10k1_voice_t *evoice)
 487 {
 488         snd_pcm_runtime_t *runtime;
 489         unsigned int voice, i, ccis, cra = 64, cs, sample;
 490
 491         if (evoice == NULL)
 492                 return;
 493         runtime = evoice->epcm->substream->runtime;
 494         voice = evoice->number;
 495         sample = snd_pcm_format_width(runtime->format) == 16 ? 0 : 0x80808080;
 496         if (runtime->channels > 1) {
 497                 ccis = 28;
 498                 cs = 4;
 499         } else {
 500                 ccis = 30;
 501                 cs = 2;
 502         }
 503         if (sample == 0)        /* 16-bit */
 504                 ccis *= 2;
 505         for (i = 0; i < cs; i++)
 506                 snd_emu10k1_ptr_write(emu, CD0 + i, voice, sample);
 507         // reset cache
 508         snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, 0);
 509         snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice, cra);
 510         if (runtime->channels > 1) {
 511                 snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice + 1, 0);
 512                 snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice + 1, cra);
 513         }
 514         // fill cache
 515         snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, ccis);
 516 }
 517
 518 static void snd_emu10k1_playback_trigger_voice(emu10k1_t *emu, emu10k1_voice_t *evoice, int master, int extra)
 519 {
 520         snd_pcm_substream_t *substream;
 521         snd_pcm_runtime_t *runtime;
 522         emu10k1_pcm_mixer_t *mix;
 523         unsigned int voice, pitch, pitch_target, tmp;
 524         unsigned int attn;
 525
 526         if (evoice == NULL)     /* skip second voice for mono */
 527                 return;
 528         substream = evoice->epcm->substream;
 529         runtime = substream->runtime;
 530         mix = &emu->pcm_mixer[substream->number];
 531         voice = evoice->number;
 532         pitch = snd_emu10k1_rate_to_pitch(runtime->rate) >> 8;
 533         pitch_target = emu10k1_calc_pitch_target(runtime->rate);
 534         attn = extra ? 0 : 0x00ff;
 535         tmp = runtime->channels == 2 ? (master ? 1 : 2) : 0;
 536         snd_emu10k1_ptr_write(emu, IFATN, voice, attn);
 537         snd_emu10k1_ptr_write(emu, VTFT, voice, (mix->attn[tmp] << 16) | 0xffff);
 538         snd_emu10k1_ptr_write(emu, CVCF, voice, (mix->attn[tmp] << 16) | 0xffff);
 539         snd_emu10k1_voice_clear_loop_stop(emu, voice);
 540         if (extra)
 541                 snd_emu10k1_voice_intr_enable(emu, voice);
 542         snd_emu10k1_ptr_write(emu, DCYSUSV, voice, 0x7f7f);
 543         snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, pitch_target);
 544         if (master)
 545                 snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, pitch_target);
 546         snd_emu10k1_ptr_write(emu, IP, voice, pitch);
 547 }
 548
 549 static void snd_emu10k1_playback_stop_voice(emu10k1_t *emu, emu10k1_voice_t *evoice)
 550 {
 551         unsigned int voice;
 552
 553         if (evoice == NULL)
 554                 return;
 555         voice = evoice->number;
 556         snd_emu10k1_voice_intr_disable(emu, voice);
 557         snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, 0);
 558         snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, 0);
 559         snd_emu10k1_ptr_write(emu, IFATN, voice, 0xffff);
 560         snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
 561         snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
 562         snd_emu10k1_ptr_write(emu, IP, voice, 0);
 563 }
 564
 565 static int snd_emu10k1_playback_trigger(snd_pcm_substream_t * substream,
 566                                         int cmd)
 567 {
 568         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 569         snd_pcm_runtime_t *runtime = substream->runtime;
 570         emu10k1_pcm_t *epcm = runtime->private_data;
 571         int result = 0;
 572
 573         // printk("trigger - emu10k1 = 0x%x, cmd = %i, pointer = %i\n", (int)emu, cmd, substream->ops->pointer(substream));
 574         spin_lock(&emu->reg_lock);
 575         switch (cmd) {
 576         case SNDRV_PCM_TRIGGER_START:
 577                 snd_emu10k1_playback_invalidate_cache(emu, epcm->extra);        /* do we need this? */
 578                 snd_emu10k1_playback_invalidate_cache(emu, epcm->voices[0]);
 579                 /* follow thru */
 580         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 581                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 1, 0);
 582                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[1], 0, 0);
 583                 snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
 584                 epcm->running = 1;
 585                 break;
 586         case SNDRV_PCM_TRIGGER_STOP:
 587         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 588                 epcm->running = 0;
 589                 snd_emu10k1_playback_stop_voice(emu, epcm->voices[0]);
 590                 snd_emu10k1_playback_stop_voice(emu, epcm->voices[1]);
 591                 snd_emu10k1_playback_stop_voice(emu, epcm->extra);
 592                 break;
 593         default:
 594                 result = -EINVAL;
 595                 break;
 596         }
 597         spin_unlock(&emu->reg_lock);
 598         return result;
 599 }
 600
 601 static int snd_emu10k1_capture_trigger(snd_pcm_substream_t * substream,
 602                                        int cmd)
 603 {
 604         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 605         snd_pcm_runtime_t *runtime = substream->runtime;
 606         emu10k1_pcm_t *epcm = runtime->private_data;
 607         int result = 0;
 608
 609         // printk("trigger - emu10k1 = %p, cmd = %i, pointer = %i\n", emu, cmd, substream->ops->pointer(substream));
 610         spin_lock(&emu->reg_lock);
 611         switch (cmd) {
 612         case SNDRV_PCM_TRIGGER_START:
 613                 outl(epcm->capture_ipr, emu->port + IPR);
 614                 snd_emu10k1_intr_enable(emu, epcm->capture_inte);
 615                 // printk("adccr = 0x%x, adcbs = 0x%x\n", epcm->adccr, epcm->adcbs);
 616                 switch (epcm->type) {
 617                 case CAPTURE_AC97ADC:
 618                         snd_emu10k1_ptr_write(emu, ADCCR, 0, epcm->capture_cr_val);
 619                         break;
 620                 case CAPTURE_EFX:
 621                         if (emu->audigy) {
 622                                 snd_emu10k1_ptr_write(emu, A_FXWC1, 0, epcm->capture_cr_val);
 623                                 snd_emu10k1_ptr_write(emu, A_FXWC2, 0, epcm->capture_cr_val2);
 624                         } else
 625                                 snd_emu10k1_ptr_write(emu, FXWC, 0, epcm->capture_cr_val);
 626                         break;
 627                 default:
 628                         break;
 629                 }
 630                 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, epcm->capture_bs_val);
 631                 epcm->running = 1;
 632                 epcm->first_ptr = 1;
 633                 break;
 634         case SNDRV_PCM_TRIGGER_STOP:
 635                 epcm->running = 0;
 636                 snd_emu10k1_intr_disable(emu, epcm->capture_inte);
 637                 outl(epcm->capture_ipr, emu->port + IPR);
 638                 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
 639                 switch (epcm->type) {
 640                 case CAPTURE_AC97ADC:
 641                         snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
 642                         break;
 643                 case CAPTURE_EFX:
 644                         if (emu->audigy) {
 645                                 snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
 646                                 snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
 647                         } else
 648                                 snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
 649                         break;
 650                 default:
 651                         break;
 652                 }
 653                 break;
 654         default:
 655                 result = -EINVAL;
 656         }
 657         spin_unlock(&emu->reg_lock);
 658         return result;
 659 }
 660
 661 static snd_pcm_uframes_t snd_emu10k1_playback_pointer(snd_pcm_substream_t * substream)
 662 {
 663         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 664         snd_pcm_runtime_t *runtime = substream->runtime;
 665         emu10k1_pcm_t *epcm = runtime->private_data;
 666         unsigned int ptr;
 667
 668         if (!epcm->running)
 669                 return 0;
 670         ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff;
 671 #if 0   /* Perex's code */
 672         ptr += runtime->buffer_size;
 673         ptr -= epcm->ccca_start_addr;
 674         ptr %= runtime->buffer_size;
 675 #else   /* EMU10K1 Open Source code from Creative */
 676         if (ptr < epcm->ccca_start_addr)
 677                 ptr += runtime->buffer_size - epcm->ccca_start_addr;
 678         else {
 679                 ptr -= epcm->ccca_start_addr;
 680                 if (ptr >= runtime->buffer_size)
 681                         ptr -= runtime->buffer_size;
 682         }
 683 #endif
 684         // printk("ptr = 0x%x, buffer_size = 0x%x, period_size = 0x%x\n", ptr, runtime->buffer_size, runtime->period_size);
 685         return ptr;
 686 }
 687
 688 static snd_pcm_uframes_t snd_emu10k1_capture_pointer(snd_pcm_substream_t * substream)
 689 {
 690         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 691         snd_pcm_runtime_t *runtime = substream->runtime;
 692         emu10k1_pcm_t *epcm = runtime->private_data;
 693         unsigned int ptr;
 694
 695         if (!epcm->running)
 696                 return 0;
 697         if (epcm->first_ptr) {
 698                 udelay(50);     // hack, it takes awhile until capture is started
 699                 epcm->first_ptr = 0;
 700         }
 701         ptr = snd_emu10k1_ptr_read(emu, epcm->capture_idx_reg, 0) & 0x0000ffff;
 702         return bytes_to_frames(runtime, ptr);
 703 }
 704
 705 /*
 706  *  Playback support device description
 707  */
 708
 709 static snd_pcm_hardware_t snd_emu10k1_playback =
 710 {
 711         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 712                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 713                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
 714         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 715         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 716         .rate_min =             4000,
 717         .rate_max =             48000,
 718         .channels_min =         1,
 719         .channels_max =         2,
 720         .buffer_bytes_max =     (128*1024),
 721         .period_bytes_min =     64,
 722         .period_bytes_max =     (128*1024),
 723         .periods_min =          1,
 724         .periods_max =          1024,
 725         .fifo_size =            0,
 726 };
 727
 728 /*
 729  *  Capture support device description
 730  */
 731
 732 static snd_pcm_hardware_t snd_emu10k1_capture =
 733 {
 734         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 735                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 736                                  SNDRV_PCM_INFO_MMAP_VALID),
 737         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 738         .rates =                SNDRV_PCM_RATE_8000_48000,
 739         .rate_min =             8000,
 740         .rate_max =             48000,
 741         .channels_min =         1,
 742         .channels_max =         2,
 743         .buffer_bytes_max =     (64*1024),
 744         .period_bytes_min =     384,
 745         .period_bytes_max =     (64*1024),
 746         .periods_min =          2,
 747         .periods_max =          2,
 748         .fifo_size =            0,
 749 };
 750
 751 /*
 752  *
 753  */
 754
 755 static void snd_emu10k1_pcm_mixer_notify1(emu10k1_t *emu, snd_kcontrol_t *kctl, int idx, int activate)
 756 {
 757         snd_ctl_elem_id_t id;
 758
 759         snd_runtime_check(kctl != NULL, return);
 760         if (activate)
 761                 kctl->vd[idx].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 762         else
 763                 kctl->vd[idx].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 764         snd_ctl_notify(emu->card, SNDRV_CTL_EVENT_MASK_VALUE |
 765                        SNDRV_CTL_EVENT_MASK_INFO,
 766                        snd_ctl_build_ioff(&id, kctl, idx));
 767 }
 768
 769 static void snd_emu10k1_pcm_mixer_notify(emu10k1_t *emu, int idx, int activate)
 770 {
 771         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_routing, idx, activate);
 772         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_volume, idx, activate);
 773         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_attn, idx, activate);
 774 }
 775
 776 static void snd_emu10k1_pcm_free_substream(snd_pcm_runtime_t *runtime)
 777 {
 778         emu10k1_pcm_t *epcm = runtime->private_data;
 779
 780         if (epcm)
 781                 kfree(epcm);
 782 }
 783
 784 static int snd_emu10k1_playback_open(snd_pcm_substream_t * substream)
 785 {
 786         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 787         emu10k1_pcm_t *epcm;
 788         emu10k1_pcm_mixer_t *mix;
 789         snd_pcm_runtime_t *runtime = substream->runtime;
 790         int i, err;
 791
 792         epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
 793         if (epcm == NULL)
 794                 return -ENOMEM;
 795         epcm->emu = emu;
 796         epcm->type = PLAYBACK_EMUVOICE;
 797         epcm->substream = substream;
 798         runtime->private_data = epcm;
 799         runtime->private_free = snd_emu10k1_pcm_free_substream;
 800         runtime->hw = snd_emu10k1_playback;
 801         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
 802                 kfree(epcm);
 803                 return err;
 804         }
 805         if ((err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX)) < 0) {
 806                 kfree(epcm);
 807                 return err;
 808         }
 809         mix = &emu->pcm_mixer[substream->number];
 810         for (i = 0; i < 4; i++)
 811                 mix->send_routing[0][i] = mix->send_routing[1][i] = mix->send_routing[2][i] = i;
 812         memset(&mix->send_volume, 0, sizeof(mix->send_volume));
 813         mix->send_volume[0][0] = mix->send_volume[0][1] =
 814         mix->send_volume[1][0] = mix->send_volume[2][1] = 255;
 815         mix->attn[0] = mix->attn[1] = mix->attn[2] = 0xffff;
 816         mix->epcm = epcm;
 817         snd_emu10k1_pcm_mixer_notify(emu, substream->number, 1);
 818         return 0;
 819 }
 820
 821 static int snd_emu10k1_playback_close(snd_pcm_substream_t * substream)
 822 {
 823         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 824         emu10k1_pcm_mixer_t *mix = &emu->pcm_mixer[substream->number];
 825
 826         mix->epcm = NULL;
 827         snd_emu10k1_pcm_mixer_notify(emu, substream->number, 0);
 828         return 0;
 829 }
 830
 831 static int snd_emu10k1_capture_open(snd_pcm_substream_t * substream)
 832 {
 833         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 834         snd_pcm_runtime_t *runtime = substream->runtime;
 835         emu10k1_pcm_t *epcm;
 836
 837         epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
 838         if (epcm == NULL)
 839                 return -ENOMEM;
 840         epcm->emu = emu;
 841         epcm->type = CAPTURE_AC97ADC;
 842         epcm->substream = substream;
 843         epcm->capture_ipr = IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL;
 844         epcm->capture_inte = INTE_ADCBUFENABLE;
 845         epcm->capture_ba_reg = ADCBA;
 846         epcm->capture_bs_reg = ADCBS;
 847         epcm->capture_idx_reg = emu->audigy ? A_ADCIDX : ADCIDX;
 848         runtime->private_data = epcm;
 849         runtime->private_free = snd_emu10k1_pcm_free_substream;
 850         runtime->hw = snd_emu10k1_capture;
 851         emu->capture_interrupt = snd_emu10k1_pcm_ac97adc_interrupt;
 852         emu->pcm_capture_substream = substream;
 853         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
 854         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_capture_rates);
 855         return 0;
 856 }
 857
 858 static int snd_emu10k1_capture_close(snd_pcm_substream_t * substream)
 859 {
 860         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 861
 862         emu->capture_interrupt = NULL;
 863         emu->pcm_capture_substream = NULL;
 864         return 0;
 865 }
 866
 867 static int snd_emu10k1_capture_mic_open(snd_pcm_substream_t * substream)
 868 {
 869         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 870         emu10k1_pcm_t *epcm;
 871         snd_pcm_runtime_t *runtime = substream->runtime;
 872
 873         epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
 874         if (epcm == NULL)
 875                 return -ENOMEM;
 876         epcm->emu = emu;
 877         epcm->type = CAPTURE_AC97MIC;
 878         epcm->substream = substream;
 879         epcm->capture_ipr = IPR_MICBUFFULL|IPR_MICBUFHALFFULL;
 880         epcm->capture_inte = INTE_MICBUFENABLE;
 881         epcm->capture_ba_reg = MICBA;
 882         epcm->capture_bs_reg = MICBS;
 883         epcm->capture_idx_reg = emu->audigy ? A_MICIDX : MICIDX;
 884         substream->runtime->private_data = epcm;
 885         substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
 886         runtime->hw = snd_emu10k1_capture;
 887         runtime->hw.rates = SNDRV_PCM_RATE_8000;
 888         runtime->hw.rate_min = runtime->hw.rate_max = 8000;
 889         runtime->hw.channels_min = 1;
 890         emu->capture_mic_interrupt = snd_emu10k1_pcm_ac97mic_interrupt;
 891         emu->pcm_capture_mic_substream = substream;
 892         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
 893         return 0;
 894 }
 895
 896 static int snd_emu10k1_capture_mic_close(snd_pcm_substream_t * substream)
 897 {
 898         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 899
 900         emu->capture_interrupt = NULL;
 901         emu->pcm_capture_mic_substream = NULL;
 902         return 0;
 903 }
 904
 905 static int snd_emu10k1_capture_efx_open(snd_pcm_substream_t * substream)
 906 {
 907         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 908         emu10k1_pcm_t *epcm;
 909         snd_pcm_runtime_t *runtime = substream->runtime;
 910         int nefx = emu->audigy ? 64 : 32;
 911         int idx;
 912
 913         epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
 914         if (epcm == NULL)
 915                 return -ENOMEM;
 916         epcm->emu = emu;
 917         epcm->type = CAPTURE_EFX;
 918         epcm->substream = substream;
 919         epcm->capture_ipr = IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL;
 920         epcm->capture_inte = INTE_EFXBUFENABLE;
 921         epcm->capture_ba_reg = FXBA;
 922         epcm->capture_bs_reg = FXBS;
 923         epcm->capture_idx_reg = FXIDX;
 924         substream->runtime->private_data = epcm;
 925         substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
 926         runtime->hw = snd_emu10k1_capture;
 927         runtime->hw.rates = SNDRV_PCM_RATE_48000;
 928         runtime->hw.rate_min = runtime->hw.rate_max = 48000;
 929         spin_lock_irq(&emu->reg_lock);
 930         runtime->hw.channels_min = runtime->hw.channels_max = 0;
 931         for (idx = 0; idx < nefx; idx++) {
 932                 if (emu->efx_voices_mask[idx/32] & (1 << (idx%32))) {
 933                         runtime->hw.channels_min++;
 934                         runtime->hw.channels_max++;
 935                 }
 936         }
 937         epcm->capture_cr_val = emu->efx_voices_mask[0];
 938         epcm->capture_cr_val2 = emu->efx_voices_mask[1];
 939         spin_unlock_irq(&emu->reg_lock);
 940         emu->capture_efx_interrupt = snd_emu10k1_pcm_efx_interrupt;
 941         emu->pcm_capture_efx_substream = substream;
 942         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
 943         return 0;
 944 }
 945
 946 static int snd_emu10k1_capture_efx_close(snd_pcm_substream_t * substream)
 947 {
 948         emu10k1_t *emu = snd_pcm_substream_chip(substream);
 949
 950         emu->capture_interrupt = NULL;
 951         emu->pcm_capture_efx_substream = NULL;
 952         return 0;
 953 }
 954
 955 static snd_pcm_ops_t snd_emu10k1_playback_ops = {
 956         .open =                 snd_emu10k1_playback_open,
 957         .close =                snd_emu10k1_playback_close,
 958         .ioctl =                snd_pcm_lib_ioctl,
 959         .hw_params =            snd_emu10k1_playback_hw_params,
 960         .hw_free =              snd_emu10k1_playback_hw_free,
 961         .prepare =              snd_emu10k1_playback_prepare,
 962         .trigger =              snd_emu10k1_playback_trigger,
 963         .pointer =              snd_emu10k1_playback_pointer,
 964         .page =                 snd_pcm_sgbuf_ops_page,
 965 };
 966
 967 static snd_pcm_ops_t snd_emu10k1_capture_ops = {
 968         .open =                 snd_emu10k1_capture_open,
 969         .close =                snd_emu10k1_capture_close,
 970         .ioctl =                snd_pcm_lib_ioctl,
 971         .hw_params =            snd_emu10k1_capture_hw_params,
 972         .hw_free =              snd_emu10k1_capture_hw_free,
 973         .prepare =              snd_emu10k1_capture_prepare,
 974         .trigger =              snd_emu10k1_capture_trigger,
 975         .pointer =              snd_emu10k1_capture_pointer,
 976 };
 977
 978 static void snd_emu10k1_pcm_free(snd_pcm_t *pcm)
 979 {
 980         emu10k1_t *emu = pcm->private_data;
 981         emu->pcm = NULL;
 982         snd_pcm_lib_preallocate_free_for_all(pcm);
 983 }
 984
 985 int __devinit snd_emu10k1_pcm(emu10k1_t * emu, int device, snd_pcm_t ** rpcm)
 986 {
 987         snd_pcm_t *pcm;
 988         snd_pcm_substream_t *substream;
 989         int err;
 990
 991         if (rpcm)
 992                 *rpcm = NULL;
 993
 994         if ((err = snd_pcm_new(emu->card, "emu10k1", device, 32, 1, &pcm)) < 0)
 995                 return err;
 996
 997         pcm->private_data = emu;
 998         pcm->private_free = snd_emu10k1_pcm_free;
 999
1000         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_playback_ops);
1001         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_ops);
1002
1003         pcm->info_flags = 0;
1004         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1005         strcpy(pcm->name, "EMU10K1");
1006         emu->pcm = pcm;
1007
1008         for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1009                 if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
1010                         return err;
1011
1012         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substream->next)
1013                 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1014
1015         if (rpcm)
1016                 *rpcm = pcm;
1017
1018         return 0;
1019 }
1020
1021 static snd_pcm_ops_t snd_emu10k1_capture_mic_ops = {
1022         .open =                 snd_emu10k1_capture_mic_open,
1023         .close =                snd_emu10k1_capture_mic_close,
1024         .ioctl =                snd_pcm_lib_ioctl,
1025         .hw_params =            snd_emu10k1_capture_hw_params,
1026         .hw_free =              snd_emu10k1_capture_hw_free,
1027         .prepare =              snd_emu10k1_capture_prepare,
1028         .trigger =              snd_emu10k1_capture_trigger,
1029         .pointer =              snd_emu10k1_capture_pointer,
1030 };
1031
1032 static void snd_emu10k1_pcm_mic_free(snd_pcm_t *pcm)
1033 {
1034         emu10k1_t *emu = pcm->private_data;
1035         emu->pcm_mic = NULL;
1036         snd_pcm_lib_preallocate_free_for_all(pcm);
1037 }
1038
1039 int __devinit snd_emu10k1_pcm_mic(emu10k1_t * emu, int device, snd_pcm_t ** rpcm)
1040 {
1041         snd_pcm_t *pcm;
1042         int err;
1043
1044         if (rpcm)
1045                 *rpcm = NULL;
1046
1047         if ((err = snd_pcm_new(emu->card, "emu10k1 mic", device, 0, 1, &pcm)) < 0)
1048                 return err;
1049
1050         pcm->private_data = emu;
1051         pcm->private_free = snd_emu10k1_pcm_mic_free;
1052
1053         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_mic_ops);
1054
1055         pcm->info_flags = 0;
1056         strcpy(pcm->name, "EMU10K1 MIC");
1057         emu->pcm_mic = pcm;
1058
1059         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1060
1061         if (rpcm)
1062                 *rpcm = pcm;
1063         return 0;
1064 }
1065
1066 static int snd_emu10k1_pcm_efx_voices_mask_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1067 {
1068         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
1069         int nefx = emu->audigy ? 64 : 32;
1070         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1071         uinfo->count = nefx;
1072         uinfo->value.integer.min = 0;
1073         uinfo->value.integer.max = 1;
1074         return 0;
1075 }
1076
1077 static int snd_emu10k1_pcm_efx_voices_mask_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1078 {
1079         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
1080         int nefx = emu->audigy ? 64 : 32;
1081         int idx;
1082
1083         spin_lock_irq(&emu->reg_lock);
1084         for (idx = 0; idx < nefx; idx++)
1085                 ucontrol->value.integer.value[idx] = (emu->efx_voices_mask[idx / 32] & (1 << (idx % 32))) ? 1 : 0;
1086         spin_unlock_irq(&emu->reg_lock);
1087         return 0;
1088 }
1089
1090 static int snd_emu10k1_pcm_efx_voices_mask_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1091 {
1092         emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
1093         unsigned int nval[2], bits;
1094         int nefx = emu->audigy ? 64 : 32;
1095         int change, idx;
1096
1097         nval[0] = nval[1] = 0;
1098         for (idx = 0, bits = 0; idx < nefx; idx++)
1099                 if (ucontrol->value.integer.value[idx]) {
1100                         nval[idx / 32] |= 1 << (idx % 32);
1101                         bits++;
1102                 }
1103         if (bits != 1 && bits != 2 && bits != 4 && bits != 8)
1104                 return -EINVAL;
1105         spin_lock_irq(&emu->reg_lock);
1106         change = (nval[0] != emu->efx_voices_mask[0]) ||
1107                 (nval[1] != emu->efx_voices_mask[1]);
1108         emu->efx_voices_mask[0] = nval[0];
1109         emu->efx_voices_mask[1] = nval[1];
1110         spin_unlock_irq(&emu->reg_lock);
1111         return change;
1112 }
1113
1114 static snd_kcontrol_new_t snd_emu10k1_pcm_efx_voices_mask = {
1115         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1116         .name = "EFX voices mask",
1117         .info = snd_emu10k1_pcm_efx_voices_mask_info,
1118         .get = snd_emu10k1_pcm_efx_voices_mask_get,
1119         .put = snd_emu10k1_pcm_efx_voices_mask_put
1120 };
1121
1122 static snd_pcm_ops_t snd_emu10k1_capture_efx_ops = {
1123         .open =                 snd_emu10k1_capture_efx_open,
1124         .close =                snd_emu10k1_capture_efx_close,
1125         .ioctl =                snd_pcm_lib_ioctl,
1126         .hw_params =            snd_emu10k1_capture_hw_params,
1127         .hw_free =              snd_emu10k1_capture_hw_free,
1128         .prepare =              snd_emu10k1_capture_prepare,
1129         .trigger =              snd_emu10k1_capture_trigger,
1130         .pointer =              snd_emu10k1_capture_pointer,
1131 };
1132
1133
1134 /* EFX playback */
1135
1136 #define INITIAL_TRAM_SHIFT     14
1137 #define INITIAL_TRAM_POS(size) ((((size) / 2) - INITIAL_TRAM_SHIFT) - 1)
1138
1139 static void snd_emu10k1_fx8010_playback_irq(emu10k1_t *emu, void *private_data)
1140 {
1141         snd_pcm_substream_t *substream = private_data;
1142         snd_pcm_period_elapsed(substream);
1143 }
1144
1145 static void snd_emu10k1_fx8010_playback_tram_poke1(unsigned short *dst_left,
1146                                                    unsigned short *dst_right,
1147                                                    unsigned short *src,
1148                                                    unsigned int count,
1149                                                    unsigned int tram_shift)
1150 {
1151         // printk("tram_poke1: dst_left = 0x%p, dst_right = 0x%p, src = 0x%p, count = 0x%x\n", dst_left, dst_right, src, count);
1152         if ((tram_shift & 1) == 0) {
1153                 while (count--) {
1154                         *dst_left-- = *src++;
1155                         *dst_right-- = *src++;
1156                 }
1157         } else {
1158                 while (count--) {
1159                         *dst_right-- = *src++;
1160                         *dst_left-- = *src++;
1161                 }
1162         }
1163 }
1164
1165 static void fx8010_pb_trans_copy(snd_pcm_substream_t *substream,
1166                                  snd_pcm_indirect_t *rec, size_t bytes)
1167 {
1168         emu10k1_t *emu = snd_pcm_substream_chip(substream);
1169         snd_emu10k1_fx8010_pcm_t *pcm = &emu->fx8010.pcm[substream->number];
1170         unsigned int tram_size = pcm->buffer_size;
1171         unsigned short *src = (unsigned short *)(substream->runtime->dma_area + rec->sw_data);
1172         unsigned int frames = bytes >> 2, count;
1173         unsigned int tram_pos = pcm->tram_pos;
1174         unsigned int tram_shift = pcm->tram_shift;
1175
1176         while (frames > tram_pos) {
1177                 count = tram_pos + 1;
1178                 snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1179                                                        (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1180                                                        src, count, tram_shift);
1181                 src += count * 2;
1182                 frames -= count;
1183                 tram_pos = (tram_size / 2) - 1;
1184                 tram_shift++;
1185         }
1186         snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1187                                                (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1188                                                src, frames, tram_shift++);
1189         tram_pos -= frames;
1190         pcm->tram_pos = tram_pos;
1191         pcm->tram_shift = tram_shift;
1192 }
1193
1194 static int snd_emu10k1_fx8010_playback_transfer(snd_pcm_substream_t *substream)
1195 {
1196         emu10k1_t *emu = snd_pcm_substream_chip(substream);
1197         snd_emu10k1_fx8010_pcm_t *pcm = &emu->fx8010.pcm[substream->number];
1198
1199         snd_pcm_indirect_playback_transfer(substream, &pcm->pcm_rec, fx8010_pb_trans_copy);
1200         return 0;
1201 }
1202
1203 static int snd_emu10k1_fx8010_playback_hw_params(snd_pcm_substream_t * substream,
1204                                                  snd_pcm_hw_params_t * hw_params)
1205 {
1206         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1207 }
1208
1209 static int snd_emu10k1_fx8010_playback_hw_free(snd_pcm_substream_t * substream)
1210 {
1211         emu10k1_t *emu = snd_pcm_substream_chip(substream);
1212         snd_emu10k1_fx8010_pcm_t *pcm = &emu->fx8010.pcm[substream->number];
1213         unsigned int i;
1214
1215         for (i = 0; i < pcm->channels; i++)
1216                 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, 0);
1217         snd_pcm_lib_free_pages(substream);
1218         return 0;
1219 }
1220
1221 static int snd_emu10k1_fx8010_playback_prepare(snd_pcm_substream_t * substream)
1222 {
1223         emu10k1_t *emu = snd_pcm_substream_chip(substream);
1224         snd_pcm_runtime_t *runtime = substream->runtime;
1225         snd_emu10k1_fx8010_pcm_t *pcm = &emu->fx8010.pcm[substream->number];
1226         unsigned int i;
1227
1228         // 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);
1229         memset(&pcm->pcm_rec, 0, sizeof(pcm->pcm_rec));
1230         pcm->pcm_rec.hw_buffer_size = pcm->buffer_size * 2; /* byte size */
1231         pcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1232         pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1233         pcm->tram_shift = 0;
1234         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_running, 0, 0);     /* reset */
1235         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);     /* reset */
1236         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_size, 0, runtime->buffer_size);
1237         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_ptr, 0, 0);         /* reset ptr number */
1238         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_count, 0, runtime->period_size);
1239         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_tmpcount, 0, runtime->period_size);
1240         for (i = 0; i < pcm->channels; i++)
1241                 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, (TANKMEMADDRREG_READ|TANKMEMADDRREG_ALIGN) + i * (runtime->buffer_size / pcm->channels));
1242         return 0;
1243 }
1244
1245 static int snd_emu10k1_fx8010_playback_trigger(snd_pcm_substream_t * substream, int cmd)
1246 {
1247         emu10k1_t *emu = snd_pcm_substream_chip(substream);
1248         snd_emu10k1_fx8010_pcm_t *pcm = &emu->fx8010.pcm[substream->number];
1249         int result = 0;
1250
1251         spin_lock(&emu->reg_lock);
1252         switch (cmd) {
1253         case SNDRV_PCM_TRIGGER_START:
1254                 /* follow thru */
1255         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1256 #ifdef EMU10K1_SET_AC3_IEC958
1257         {
1258                 int i;
1259                 for (i = 0; i < 3; i++) {
1260                         unsigned int bits;
1261                         bits = SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1262                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | SPCS_GENERATIONSTATUS |
1263                                0x00001200 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT | SPCS_NOTAUDIODATA;
1264                         snd_emu10k1_ptr_write(emu, SPCS0 + i, 0, bits);
1265                 }
1266         }
1267 #endif
1268                 result = snd_emu10k1_fx8010_register_irq_handler(emu, snd_emu10k1_fx8010_playback_irq, pcm->gpr_running, substream, &pcm->irq);
1269                 if (result < 0)
1270                         goto __err;
1271                 snd_emu10k1_fx8010_playback_transfer(substream);        /* roll the ball */
1272                 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 1);
1273                 break;
1274         case SNDRV_PCM_TRIGGER_STOP:
1275         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1276                 snd_emu10k1_fx8010_unregister_irq_handler(emu, pcm->irq); pcm->irq = NULL;
1277                 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);
1278                 pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1279                 pcm->tram_shift = 0;
1280                 break;
1281         default:
1282                 result = -EINVAL;
1283                 break;
1284         }
1285       __err:
1286         spin_unlock(&emu->reg_lock);
1287         return result;
1288 }
1289
1290 static snd_pcm_uframes_t snd_emu10k1_fx8010_playback_pointer(snd_pcm_substream_t * substream)
1291 {
1292         emu10k1_t *emu = snd_pcm_substream_chip(substream);
1293         snd_emu10k1_fx8010_pcm_t *pcm = &emu->fx8010.pcm[substream->number];
1294         size_t ptr; /* byte pointer */
1295
1296         if (!snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_trigger, 0))
1297                 return 0;
1298         ptr = snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_ptr, 0) << 2;
1299         return snd_pcm_indirect_playback_pointer(substream, &pcm->pcm_rec, ptr);
1300 }
1301
1302 static snd_pcm_hardware_t snd_emu10k1_fx8010_playback =
1303 {
1304         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1305                                  /* SNDRV_PCM_INFO_MMAP_VALID | */ SNDRV_PCM_INFO_PAUSE),
1306         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1307         .rates =                SNDRV_PCM_RATE_48000,
1308         .rate_min =             48000,
1309         .rate_max =             48000,
1310         .channels_min =         1,
1311         .channels_max =         1,
1312         .buffer_bytes_max =     (128*1024),
1313         .period_bytes_min =     1024,
1314         .period_bytes_max =     (128*1024),
1315         .periods_min =          1,
1316         .periods_max =          1024,
1317         .fifo_size =            0,
1318 };
1319
1320 static int snd_emu10k1_fx8010_playback_open(snd_pcm_substream_t * substream)
1321 {
1322         emu10k1_t *emu = snd_pcm_substream_chip(substream);
1323         snd_pcm_runtime_t *runtime = substream->runtime;
1324         snd_emu10k1_fx8010_pcm_t *pcm = &emu->fx8010.pcm[substream->number];
1325
1326         runtime->hw = snd_emu10k1_fx8010_playback;
1327         runtime->hw.channels_min = runtime->hw.channels_max = pcm->channels;
1328         runtime->hw.period_bytes_max = (pcm->buffer_size * 2) / 2;
1329         spin_lock_irq(&emu->reg_lock);
1330         if (pcm->valid == 0) {
1331                 spin_unlock_irq(&emu->reg_lock);
1332                 return -ENODEV;
1333         }
1334         pcm->opened = 1;
1335         spin_unlock_irq(&emu->reg_lock);
1336         return 0;
1337 }
1338
1339 static int snd_emu10k1_fx8010_playback_close(snd_pcm_substream_t * substream)
1340 {
1341         emu10k1_t *emu = snd_pcm_substream_chip(substream);
1342         snd_emu10k1_fx8010_pcm_t *pcm = &emu->fx8010.pcm[substream->number];
1343
1344         spin_lock_irq(&emu->reg_lock);
1345         pcm->opened = 0;
1346         spin_unlock_irq(&emu->reg_lock);
1347         return 0;
1348 }
1349
1350 static snd_pcm_ops_t snd_emu10k1_fx8010_playback_ops = {
1351         .open =                 snd_emu10k1_fx8010_playback_open,
1352         .close =                snd_emu10k1_fx8010_playback_close,
1353         .ioctl =                snd_pcm_lib_ioctl,
1354         .hw_params =            snd_emu10k1_fx8010_playback_hw_params,
1355         .hw_free =              snd_emu10k1_fx8010_playback_hw_free,
1356         .prepare =              snd_emu10k1_fx8010_playback_prepare,
1357         .trigger =              snd_emu10k1_fx8010_playback_trigger,
1358         .pointer =              snd_emu10k1_fx8010_playback_pointer,
1359         .ack =                  snd_emu10k1_fx8010_playback_transfer,
1360 };
1361
1362 static void snd_emu10k1_pcm_efx_free(snd_pcm_t *pcm)
1363 {
1364         emu10k1_t *emu = pcm->private_data;
1365         emu->pcm_efx = NULL;
1366         snd_pcm_lib_preallocate_free_for_all(pcm);
1367 }
1368
1369 int __devinit snd_emu10k1_pcm_efx(emu10k1_t * emu, int device, snd_pcm_t ** rpcm)
1370 {
1371         snd_pcm_t *pcm;
1372         int err;
1373
1374         if (rpcm)
1375                 *rpcm = NULL;
1376
1377         if ((err = snd_pcm_new(emu->card, "emu10k1 efx", device, 8, 1, &pcm)) < 0)
1378                 return err;
1379
1380         pcm->private_data = emu;
1381         pcm->private_free = snd_emu10k1_pcm_efx_free;
1382
1383         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_fx8010_playback_ops);
1384         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_efx_ops);
1385
1386         pcm->info_flags = 0;
1387         strcpy(pcm->name, "EMU10K1 EFX");
1388         emu->pcm_efx = pcm;
1389         if (rpcm)
1390                 *rpcm = pcm;
1391
1392         emu->efx_voices_mask[0] = FXWC_DEFAULTROUTE_C | FXWC_DEFAULTROUTE_A;
1393         emu->efx_voices_mask[1] = 0;
1394         snd_ctl_add(emu->card, snd_ctl_new1(&snd_emu10k1_pcm_efx_voices_mask, emu));
1395
1396         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1397
1398         return 0;
1399 }