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TOMOYO Linux Cross Reference
Linux/sound/pci/emu10k1/emupcm.c

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

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