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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 const 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 const 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 const unsigned int capture_rates[8] = {
185         8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000
186 };
187 
188 static const 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 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                 memset(send_routing, 0, sizeof(send_routing));
317                 send_routing[0] = 0;
318                 send_routing[1] = 1;
319                 send_routing[2] = 2;
320                 send_routing[3] = 3;
321                 memset(send_amount, 0, sizeof(send_amount));
322         } else {
323                 /* mono, left, right (master voice = left) */
324                 tmp = stereo ? (master ? 1 : 2) : 0;
325                 memcpy(send_routing, &mix->send_routing[tmp][0], 8);
326                 memcpy(send_amount, &mix->send_volume[tmp][0], 8);
327         }
328 
329         ccis = emu10k1_ccis(stereo, w_16);
330         
331         if (master) {
332                 evoice->epcm->ccca_start_addr = start_addr + ccis;
333                 if (extra) {
334                         start_addr += ccis;
335                         end_addr += ccis + emu->delay_pcm_irq;
336                 }
337                 if (stereo && !extra) {
338                         snd_emu10k1_ptr_write(emu, CPF, voice, CPF_STEREO_MASK);
339                         snd_emu10k1_ptr_write(emu, CPF, (voice + 1), CPF_STEREO_MASK);
340                 } else {
341                         snd_emu10k1_ptr_write(emu, CPF, voice, 0);
342                 }
343         }
344 
345         /* setup routing */
346         if (emu->audigy) {
347                 snd_emu10k1_ptr_write(emu, A_FXRT1, voice,
348                                       snd_emu10k1_compose_audigy_fxrt1(send_routing));
349                 snd_emu10k1_ptr_write(emu, A_FXRT2, voice,
350                                       snd_emu10k1_compose_audigy_fxrt2(send_routing));
351                 snd_emu10k1_ptr_write(emu, A_SENDAMOUNTS, voice,
352                                       ((unsigned int)send_amount[4] << 24) |
353                                       ((unsigned int)send_amount[5] << 16) |
354                                       ((unsigned int)send_amount[6] << 8) |
355                                       (unsigned int)send_amount[7]);
356         } else
357                 snd_emu10k1_ptr_write(emu, FXRT, voice,
358                                       snd_emu10k1_compose_send_routing(send_routing));
359         /* Stop CA */
360         /* Assumption that PT is already 0 so no harm overwriting */
361         snd_emu10k1_ptr_write(emu, PTRX, voice, (send_amount[0] << 8) | send_amount[1]);
362         snd_emu10k1_ptr_write(emu, DSL, voice, end_addr | (send_amount[3] << 24));
363         snd_emu10k1_ptr_write(emu, PSST, voice,
364                         (start_addr + (extra ? emu->delay_pcm_irq : 0)) |
365                         (send_amount[2] << 24));
366         if (emu->card_capabilities->emu_model)
367                 pitch_target = PITCH_48000; /* Disable interpolators on emu1010 card */
368         else 
369                 pitch_target = emu10k1_calc_pitch_target(runtime->rate);
370         if (extra)
371                 snd_emu10k1_ptr_write(emu, CCCA, voice, start_addr |
372                               emu10k1_select_interprom(pitch_target) |
373                               (w_16 ? 0 : CCCA_8BITSELECT));
374         else
375                 snd_emu10k1_ptr_write(emu, CCCA, voice, (start_addr + ccis) |
376                               emu10k1_select_interprom(pitch_target) |
377                               (w_16 ? 0 : CCCA_8BITSELECT));
378         /* Clear filter delay memory */
379         snd_emu10k1_ptr_write(emu, Z1, voice, 0);
380         snd_emu10k1_ptr_write(emu, Z2, voice, 0);
381         /* invalidate maps */
382         silent_page = ((unsigned int)emu->silent_page.addr << emu->address_mode) | (emu->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0);
383         snd_emu10k1_ptr_write(emu, MAPA, voice, silent_page);
384         snd_emu10k1_ptr_write(emu, MAPB, voice, silent_page);
385         /* modulation envelope */
386         snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
387         snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
388         snd_emu10k1_ptr_write(emu, ATKHLDM, voice, 0);
389         snd_emu10k1_ptr_write(emu, DCYSUSM, voice, 0x007f);
390         snd_emu10k1_ptr_write(emu, LFOVAL1, voice, 0x8000);
391         snd_emu10k1_ptr_write(emu, LFOVAL2, voice, 0x8000);
392         snd_emu10k1_ptr_write(emu, FMMOD, voice, 0);
393         snd_emu10k1_ptr_write(emu, TREMFRQ, voice, 0);
394         snd_emu10k1_ptr_write(emu, FM2FRQ2, voice, 0);
395         snd_emu10k1_ptr_write(emu, ENVVAL, voice, 0x8000);
396         /* volume envelope */
397         snd_emu10k1_ptr_write(emu, ATKHLDV, voice, 0x7f7f);
398         snd_emu10k1_ptr_write(emu, ENVVOL, voice, 0x0000);
399         /* filter envelope */
400         snd_emu10k1_ptr_write(emu, PEFE_FILTERAMOUNT, voice, 0x7f);
401         /* pitch envelope */
402         snd_emu10k1_ptr_write(emu, PEFE_PITCHAMOUNT, voice, 0);
403 
404         spin_unlock_irqrestore(&emu->reg_lock, flags);
405 }
406 
407 static int snd_emu10k1_playback_hw_params(struct snd_pcm_substream *substream,
408                                           struct snd_pcm_hw_params *hw_params)
409 {
410         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
411         struct snd_pcm_runtime *runtime = substream->runtime;
412         struct snd_emu10k1_pcm *epcm = runtime->private_data;
413         size_t alloc_size;
414         int err;
415 
416         if ((err = snd_emu10k1_pcm_channel_alloc(epcm, params_channels(hw_params))) < 0)
417                 return err;
418 
419         alloc_size = params_buffer_bytes(hw_params);
420         if (emu->iommu_workaround)
421                 alloc_size += EMUPAGESIZE;
422         err = snd_pcm_lib_malloc_pages(substream, alloc_size);
423         if (err < 0)
424                 return err;
425         if (emu->iommu_workaround && runtime->dma_bytes >= EMUPAGESIZE)
426                 runtime->dma_bytes -= EMUPAGESIZE;
427         if (err > 0) {  /* change */
428                 int mapped;
429                 if (epcm->memblk != NULL)
430                         snd_emu10k1_free_pages(emu, epcm->memblk);
431                 epcm->memblk = snd_emu10k1_alloc_pages(emu, substream);
432                 epcm->start_addr = 0;
433                 if (! epcm->memblk)
434                         return -ENOMEM;
435                 mapped = ((struct snd_emu10k1_memblk *)epcm->memblk)->mapped_page;
436                 if (mapped < 0)
437                         return -ENOMEM;
438                 epcm->start_addr = mapped << PAGE_SHIFT;
439         }
440         return 0;
441 }
442 
443 static int snd_emu10k1_playback_hw_free(struct snd_pcm_substream *substream)
444 {
445         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
446         struct snd_pcm_runtime *runtime = substream->runtime;
447         struct snd_emu10k1_pcm *epcm;
448 
449         if (runtime->private_data == NULL)
450                 return 0;
451         epcm = runtime->private_data;
452         if (epcm->extra) {
453                 snd_emu10k1_voice_free(epcm->emu, epcm->extra);
454                 epcm->extra = NULL;
455         }
456         if (epcm->voices[1]) {
457                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
458                 epcm->voices[1] = NULL;
459         }
460         if (epcm->voices[0]) {
461                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[0]);
462                 epcm->voices[0] = NULL;
463         }
464         if (epcm->memblk) {
465                 snd_emu10k1_free_pages(emu, epcm->memblk);
466                 epcm->memblk = NULL;
467                 epcm->start_addr = 0;
468         }
469         snd_pcm_lib_free_pages(substream);
470         return 0;
471 }
472 
473 static int snd_emu10k1_efx_playback_hw_free(struct snd_pcm_substream *substream)
474 {
475         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
476         struct snd_pcm_runtime *runtime = substream->runtime;
477         struct snd_emu10k1_pcm *epcm;
478         int i;
479 
480         if (runtime->private_data == NULL)
481                 return 0;
482         epcm = runtime->private_data;
483         if (epcm->extra) {
484                 snd_emu10k1_voice_free(epcm->emu, epcm->extra);
485                 epcm->extra = NULL;
486         }
487         for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
488                 if (epcm->voices[i]) {
489                         snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
490                         epcm->voices[i] = NULL;
491                 }
492         }
493         if (epcm->memblk) {
494                 snd_emu10k1_free_pages(emu, epcm->memblk);
495                 epcm->memblk = NULL;
496                 epcm->start_addr = 0;
497         }
498         snd_pcm_lib_free_pages(substream);
499         return 0;
500 }
501 
502 static int snd_emu10k1_playback_prepare(struct snd_pcm_substream *substream)
503 {
504         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
505         struct snd_pcm_runtime *runtime = substream->runtime;
506         struct snd_emu10k1_pcm *epcm = runtime->private_data;
507         unsigned int start_addr, end_addr;
508 
509         start_addr = epcm->start_addr;
510         end_addr = snd_pcm_lib_period_bytes(substream);
511         if (runtime->channels == 2) {
512                 start_addr >>= 1;
513                 end_addr >>= 1;
514         }
515         end_addr += start_addr;
516         snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
517                                    start_addr, end_addr, NULL);
518         start_addr = epcm->start_addr;
519         end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream);
520         snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
521                                    start_addr, end_addr,
522                                    &emu->pcm_mixer[substream->number]);
523         if (epcm->voices[1])
524                 snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[1],
525                                            start_addr, end_addr,
526                                            &emu->pcm_mixer[substream->number]);
527         return 0;
528 }
529 
530 static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream)
531 {
532         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
533         struct snd_pcm_runtime *runtime = substream->runtime;
534         struct snd_emu10k1_pcm *epcm = runtime->private_data;
535         unsigned int start_addr, end_addr;
536         unsigned int channel_size;
537         int i;
538 
539         start_addr = epcm->start_addr;
540         end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream);
541 
542         /*
543          * the kX driver leaves some space between voices
544          */
545         channel_size = ( end_addr - start_addr ) / NUM_EFX_PLAYBACK;
546 
547         snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
548                                    start_addr, start_addr + (channel_size / 2), NULL);
549 
550         /* only difference with the master voice is we use it for the pointer */
551         snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
552                                    start_addr, start_addr + channel_size,
553                                    &emu->efx_pcm_mixer[0]);
554 
555         start_addr += channel_size;
556         for (i = 1; i < NUM_EFX_PLAYBACK; i++) {
557                 snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[i],
558                                            start_addr, start_addr + channel_size,
559                                            &emu->efx_pcm_mixer[i]);
560                 start_addr += channel_size;
561         }
562 
563         return 0;
564 }
565 
566 static const struct snd_pcm_hardware snd_emu10k1_efx_playback =
567 {
568         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_NONINTERLEAVED |
569                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
570                                  SNDRV_PCM_INFO_RESUME |
571                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
572         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
573         .rates =                SNDRV_PCM_RATE_48000,
574         .rate_min =             48000,
575         .rate_max =             48000,
576         .channels_min =         NUM_EFX_PLAYBACK,
577         .channels_max =         NUM_EFX_PLAYBACK,
578         .buffer_bytes_max =     (64*1024),
579         .period_bytes_min =     64,
580         .period_bytes_max =     (64*1024),
581         .periods_min =          2,
582         .periods_max =          2,
583         .fifo_size =            0,
584 };
585 
586 static int snd_emu10k1_capture_hw_params(struct snd_pcm_substream *substream,
587                                          struct snd_pcm_hw_params *hw_params)
588 {
589         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
590 }
591 
592 static int snd_emu10k1_capture_hw_free(struct snd_pcm_substream *substream)
593 {
594         return snd_pcm_lib_free_pages(substream);
595 }
596 
597 static int snd_emu10k1_capture_prepare(struct snd_pcm_substream *substream)
598 {
599         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
600         struct snd_pcm_runtime *runtime = substream->runtime;
601         struct snd_emu10k1_pcm *epcm = runtime->private_data;
602         int idx;
603 
604         /* zeroing the buffer size will stop capture */
605         snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
606         switch (epcm->type) {
607         case CAPTURE_AC97ADC:
608                 snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
609                 break;
610         case CAPTURE_EFX:
611                 if (emu->audigy) {
612                         snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
613                         snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
614                 } else
615                         snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
616                 break;
617         default:
618                 break;
619         }       
620         snd_emu10k1_ptr_write(emu, epcm->capture_ba_reg, 0, runtime->dma_addr);
621         epcm->capture_bufsize = snd_pcm_lib_buffer_bytes(substream);
622         epcm->capture_bs_val = 0;
623         for (idx = 0; idx < 31; idx++) {
624                 if (capture_period_sizes[idx] == epcm->capture_bufsize) {
625                         epcm->capture_bs_val = idx + 1;
626                         break;
627                 }
628         }
629         if (epcm->capture_bs_val == 0) {
630                 snd_BUG();
631                 epcm->capture_bs_val++;
632         }
633         if (epcm->type == CAPTURE_AC97ADC) {
634                 epcm->capture_cr_val = emu->audigy ? A_ADCCR_LCHANENABLE : ADCCR_LCHANENABLE;
635                 if (runtime->channels > 1)
636                         epcm->capture_cr_val |= emu->audigy ? A_ADCCR_RCHANENABLE : ADCCR_RCHANENABLE;
637                 epcm->capture_cr_val |= emu->audigy ?
638                         snd_emu10k1_audigy_capture_rate_reg(runtime->rate) :
639                         snd_emu10k1_capture_rate_reg(runtime->rate);
640         }
641         return 0;
642 }
643 
644 static void snd_emu10k1_playback_invalidate_cache(struct snd_emu10k1 *emu, int extra, struct snd_emu10k1_voice *evoice)
645 {
646         struct snd_pcm_runtime *runtime;
647         unsigned int voice, stereo, i, ccis, cra = 64, cs, sample;
648 
649         if (evoice == NULL)
650                 return;
651         runtime = evoice->epcm->substream->runtime;
652         voice = evoice->number;
653         stereo = (!extra && runtime->channels == 2);
654         sample = snd_pcm_format_width(runtime->format) == 16 ? 0 : 0x80808080;
655         ccis = emu10k1_ccis(stereo, sample == 0);
656         /* set cs to 2 * number of cache registers beside the invalidated */
657         cs = (sample == 0) ? (32-ccis) : (64-ccis+1) >> 1;
658         if (cs > 16) cs = 16;
659         for (i = 0; i < cs; i++) {
660                 snd_emu10k1_ptr_write(emu, CD0 + i, voice, sample);
661                 if (stereo) {
662                         snd_emu10k1_ptr_write(emu, CD0 + i, voice + 1, sample);
663                 }
664         }
665         /* reset cache */
666         snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, 0);
667         snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice, cra);
668         if (stereo) {
669                 snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice + 1, 0);
670                 snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice + 1, cra);
671         }
672         /* fill cache */
673         snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, ccis);
674         if (stereo) {
675                 snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice+1, ccis);
676         }
677 }
678 
679 static void snd_emu10k1_playback_prepare_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice,
680                                                int master, int extra,
681                                                struct snd_emu10k1_pcm_mixer *mix)
682 {
683         struct snd_pcm_substream *substream;
684         struct snd_pcm_runtime *runtime;
685         unsigned int attn, vattn;
686         unsigned int voice, tmp;
687 
688         if (evoice == NULL)     /* skip second voice for mono */
689                 return;
690         substream = evoice->epcm->substream;
691         runtime = substream->runtime;
692         voice = evoice->number;
693 
694         attn = extra ? 0 : 0x00ff;
695         tmp = runtime->channels == 2 ? (master ? 1 : 2) : 0;
696         vattn = mix != NULL ? (mix->attn[tmp] << 16) : 0;
697         snd_emu10k1_ptr_write(emu, IFATN, voice, attn);
698         snd_emu10k1_ptr_write(emu, VTFT, voice, vattn | 0xffff);
699         snd_emu10k1_ptr_write(emu, CVCF, voice, vattn | 0xffff);
700         snd_emu10k1_ptr_write(emu, DCYSUSV, voice, 0x7f7f);
701         snd_emu10k1_voice_clear_loop_stop(emu, voice);
702 }       
703 
704 static void snd_emu10k1_playback_trigger_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice, int master, int extra)
705 {
706         struct snd_pcm_substream *substream;
707         struct snd_pcm_runtime *runtime;
708         unsigned int voice, pitch, pitch_target;
709 
710         if (evoice == NULL)     /* skip second voice for mono */
711                 return;
712         substream = evoice->epcm->substream;
713         runtime = substream->runtime;
714         voice = evoice->number;
715 
716         pitch = snd_emu10k1_rate_to_pitch(runtime->rate) >> 8;
717         if (emu->card_capabilities->emu_model)
718                 pitch_target = PITCH_48000; /* Disable interpolators on emu1010 card */
719         else 
720                 pitch_target = emu10k1_calc_pitch_target(runtime->rate);
721         snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, pitch_target);
722         if (master || evoice->epcm->type == PLAYBACK_EFX)
723                 snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, pitch_target);
724         snd_emu10k1_ptr_write(emu, IP, voice, pitch);
725         if (extra)
726                 snd_emu10k1_voice_intr_enable(emu, voice);
727 }
728 
729 static void snd_emu10k1_playback_stop_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice)
730 {
731         unsigned int voice;
732 
733         if (evoice == NULL)
734                 return;
735         voice = evoice->number;
736         snd_emu10k1_voice_intr_disable(emu, voice);
737         snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, 0);
738         snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, 0);
739         snd_emu10k1_ptr_write(emu, IFATN, voice, 0xffff);
740         snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
741         snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
742         snd_emu10k1_ptr_write(emu, IP, voice, 0);
743 }
744 
745 static inline void snd_emu10k1_playback_mangle_extra(struct snd_emu10k1 *emu,
746                 struct snd_emu10k1_pcm *epcm,
747                 struct snd_pcm_substream *substream,
748                 struct snd_pcm_runtime *runtime)
749 {
750         unsigned int ptr, period_pos;
751 
752         /* try to sychronize the current position for the interrupt
753            source voice */
754         period_pos = runtime->status->hw_ptr - runtime->hw_ptr_interrupt;
755         period_pos %= runtime->period_size;
756         ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->extra->number);
757         ptr &= ~0x00ffffff;
758         ptr |= epcm->ccca_start_addr + period_pos;
759         snd_emu10k1_ptr_write(emu, CCCA, epcm->extra->number, ptr);
760 }
761 
762 static int snd_emu10k1_playback_trigger(struct snd_pcm_substream *substream,
763                                         int cmd)
764 {
765         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
766         struct snd_pcm_runtime *runtime = substream->runtime;
767         struct snd_emu10k1_pcm *epcm = runtime->private_data;
768         struct snd_emu10k1_pcm_mixer *mix;
769         int result = 0;
770 
771         /*
772         dev_dbg(emu->card->dev,
773                 "trigger - emu10k1 = 0x%x, cmd = %i, pointer = %i\n",
774                (int)emu, cmd, substream->ops->pointer(substream))
775         */
776         spin_lock(&emu->reg_lock);
777         switch (cmd) {
778         case SNDRV_PCM_TRIGGER_START:
779                 snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra);     /* do we need this? */
780                 snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[0]);
781                 /* fall through */
782         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
783         case SNDRV_PCM_TRIGGER_RESUME:
784                 if (cmd == SNDRV_PCM_TRIGGER_PAUSE_RELEASE)
785                         snd_emu10k1_playback_mangle_extra(emu, epcm, substream, runtime);
786                 mix = &emu->pcm_mixer[substream->number];
787                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 1, 0, mix);
788                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[1], 0, 0, mix);
789                 snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
790                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 1, 0);
791                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[1], 0, 0);
792                 snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
793                 epcm->running = 1;
794                 break;
795         case SNDRV_PCM_TRIGGER_STOP:
796         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
797         case SNDRV_PCM_TRIGGER_SUSPEND:
798                 epcm->running = 0;
799                 snd_emu10k1_playback_stop_voice(emu, epcm->voices[0]);
800                 snd_emu10k1_playback_stop_voice(emu, epcm->voices[1]);
801                 snd_emu10k1_playback_stop_voice(emu, epcm->extra);
802                 break;
803         default:
804                 result = -EINVAL;
805                 break;
806         }
807         spin_unlock(&emu->reg_lock);
808         return result;
809 }
810 
811 static int snd_emu10k1_capture_trigger(struct snd_pcm_substream *substream,
812                                        int cmd)
813 {
814         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
815         struct snd_pcm_runtime *runtime = substream->runtime;
816         struct snd_emu10k1_pcm *epcm = runtime->private_data;
817         int result = 0;
818 
819         spin_lock(&emu->reg_lock);
820         switch (cmd) {
821         case SNDRV_PCM_TRIGGER_START:
822         case SNDRV_PCM_TRIGGER_RESUME:
823                 /* hmm this should cause full and half full interrupt to be raised? */
824                 outl(epcm->capture_ipr, emu->port + IPR);
825                 snd_emu10k1_intr_enable(emu, epcm->capture_inte);
826                 /*
827                 dev_dbg(emu->card->dev, "adccr = 0x%x, adcbs = 0x%x\n",
828                        epcm->adccr, epcm->adcbs);
829                 */
830                 switch (epcm->type) {
831                 case CAPTURE_AC97ADC:
832                         snd_emu10k1_ptr_write(emu, ADCCR, 0, epcm->capture_cr_val);
833                         break;
834                 case CAPTURE_EFX:
835                         if (emu->audigy) {
836                                 snd_emu10k1_ptr_write(emu, A_FXWC1, 0, epcm->capture_cr_val);
837                                 snd_emu10k1_ptr_write(emu, A_FXWC2, 0, epcm->capture_cr_val2);
838                                 dev_dbg(emu->card->dev,
839                                         "cr_val=0x%x, cr_val2=0x%x\n",
840                                         epcm->capture_cr_val,
841                                         epcm->capture_cr_val2);
842                         } else
843                                 snd_emu10k1_ptr_write(emu, FXWC, 0, epcm->capture_cr_val);
844                         break;
845                 default:        
846                         break;
847                 }
848                 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, epcm->capture_bs_val);
849                 epcm->running = 1;
850                 epcm->first_ptr = 1;
851                 break;
852         case SNDRV_PCM_TRIGGER_STOP:
853         case SNDRV_PCM_TRIGGER_SUSPEND:
854                 epcm->running = 0;
855                 snd_emu10k1_intr_disable(emu, epcm->capture_inte);
856                 outl(epcm->capture_ipr, emu->port + IPR);
857                 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
858                 switch (epcm->type) {
859                 case CAPTURE_AC97ADC:
860                         snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
861                         break;
862                 case CAPTURE_EFX:
863                         if (emu->audigy) {
864                                 snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
865                                 snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
866                         } else
867                                 snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
868                         break;
869                 default:
870                         break;
871                 }
872                 break;
873         default:
874                 result = -EINVAL;
875         }
876         spin_unlock(&emu->reg_lock);
877         return result;
878 }
879 
880 static snd_pcm_uframes_t snd_emu10k1_playback_pointer(struct snd_pcm_substream *substream)
881 {
882         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
883         struct snd_pcm_runtime *runtime = substream->runtime;
884         struct snd_emu10k1_pcm *epcm = runtime->private_data;
885         unsigned int ptr;
886 
887         if (!epcm->running)
888                 return 0;
889         ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff;
890 #if 0   /* Perex's code */
891         ptr += runtime->buffer_size;
892         ptr -= epcm->ccca_start_addr;
893         ptr %= runtime->buffer_size;
894 #else   /* EMU10K1 Open Source code from Creative */
895         if (ptr < epcm->ccca_start_addr)
896                 ptr += runtime->buffer_size - epcm->ccca_start_addr;
897         else {
898                 ptr -= epcm->ccca_start_addr;
899                 if (ptr >= runtime->buffer_size)
900                         ptr -= runtime->buffer_size;
901         }
902 #endif
903         /*
904         dev_dbg(emu->card->dev,
905                "ptr = 0x%lx, buffer_size = 0x%lx, period_size = 0x%lx\n",
906                (long)ptr, (long)runtime->buffer_size,
907                (long)runtime->period_size);
908         */
909         return ptr;
910 }
911 
912 
913 static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream,
914                                         int cmd)
915 {
916         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
917         struct snd_pcm_runtime *runtime = substream->runtime;
918         struct snd_emu10k1_pcm *epcm = runtime->private_data;
919         int i;
920         int result = 0;
921 
922         spin_lock(&emu->reg_lock);
923         switch (cmd) {
924         case SNDRV_PCM_TRIGGER_START:
925                 /* prepare voices */
926                 for (i = 0; i < NUM_EFX_PLAYBACK; i++) {        
927                         snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[i]);
928                 }
929                 snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra);
930 
931                 /* fall through */
932         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
933         case SNDRV_PCM_TRIGGER_RESUME:
934                 snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
935                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 0, 0,
936                                                    &emu->efx_pcm_mixer[0]);
937                 for (i = 1; i < NUM_EFX_PLAYBACK; i++)
938                         snd_emu10k1_playback_prepare_voice(emu, epcm->voices[i], 0, 0,
939                                                            &emu->efx_pcm_mixer[i]);
940                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 0, 0);
941                 snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
942                 for (i = 1; i < NUM_EFX_PLAYBACK; i++)
943                         snd_emu10k1_playback_trigger_voice(emu, epcm->voices[i], 0, 0);
944                 epcm->running = 1;
945                 break;
946         case SNDRV_PCM_TRIGGER_SUSPEND:
947         case SNDRV_PCM_TRIGGER_STOP:
948         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
949                 epcm->running = 0;
950                 for (i = 0; i < NUM_EFX_PLAYBACK; i++) {        
951                         snd_emu10k1_playback_stop_voice(emu, epcm->voices[i]);
952                 }
953                 snd_emu10k1_playback_stop_voice(emu, epcm->extra);
954                 break;
955         default:
956                 result = -EINVAL;
957                 break;
958         }
959         spin_unlock(&emu->reg_lock);
960         return result;
961 }
962 
963 
964 static snd_pcm_uframes_t snd_emu10k1_capture_pointer(struct snd_pcm_substream *substream)
965 {
966         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
967         struct snd_pcm_runtime *runtime = substream->runtime;
968         struct snd_emu10k1_pcm *epcm = runtime->private_data;
969         unsigned int ptr;
970 
971         if (!epcm->running)
972                 return 0;
973         if (epcm->first_ptr) {
974                 udelay(50);     /* hack, it takes awhile until capture is started */
975                 epcm->first_ptr = 0;
976         }
977         ptr = snd_emu10k1_ptr_read(emu, epcm->capture_idx_reg, 0) & 0x0000ffff;
978         return bytes_to_frames(runtime, ptr);
979 }
980 
981 /*
982  *  Playback support device description
983  */
984 
985 static const struct snd_pcm_hardware snd_emu10k1_playback =
986 {
987         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
988                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
989                                  SNDRV_PCM_INFO_RESUME |
990                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
991         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
992         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_96000,
993         .rate_min =             4000,
994         .rate_max =             96000,
995         .channels_min =         1,
996         .channels_max =         2,
997         .buffer_bytes_max =     (128*1024),
998         .period_bytes_min =     64,
999         .period_bytes_max =     (128*1024),
1000         .periods_min =          1,
1001         .periods_max =          1024,
1002         .fifo_size =            0,
1003 };
1004 
1005 /*
1006  *  Capture support device description
1007  */
1008 
1009 static const struct snd_pcm_hardware snd_emu10k1_capture =
1010 {
1011         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1012                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1013                                  SNDRV_PCM_INFO_RESUME |
1014                                  SNDRV_PCM_INFO_MMAP_VALID),
1015         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1016         .rates =                SNDRV_PCM_RATE_8000_48000,
1017         .rate_min =             8000,
1018         .rate_max =             48000,
1019         .channels_min =         1,
1020         .channels_max =         2,
1021         .buffer_bytes_max =     (64*1024),
1022         .period_bytes_min =     384,
1023         .period_bytes_max =     (64*1024),
1024         .periods_min =          2,
1025         .periods_max =          2,
1026         .fifo_size =            0,
1027 };
1028 
1029 static const struct snd_pcm_hardware snd_emu10k1_capture_efx =
1030 {
1031         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1032                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1033                                  SNDRV_PCM_INFO_RESUME |
1034                                  SNDRV_PCM_INFO_MMAP_VALID),
1035         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1036         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | 
1037                                  SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | 
1038                                  SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
1039         .rate_min =             44100,
1040         .rate_max =             192000,
1041         .channels_min =         8,
1042         .channels_max =         8,
1043         .buffer_bytes_max =     (64*1024),
1044         .period_bytes_min =     384,
1045         .period_bytes_max =     (64*1024),
1046         .periods_min =          2,
1047         .periods_max =          2,
1048         .fifo_size =            0,
1049 };
1050 
1051 /*
1052  *
1053  */
1054 
1055 static void snd_emu10k1_pcm_mixer_notify1(struct snd_emu10k1 *emu, struct snd_kcontrol *kctl, int idx, int activate)
1056 {
1057         struct snd_ctl_elem_id id;
1058 
1059         if (! kctl)
1060                 return;
1061         if (activate)
1062                 kctl->vd[idx].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1063         else
1064                 kctl->vd[idx].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1065         snd_ctl_notify(emu->card, SNDRV_CTL_EVENT_MASK_VALUE |
1066                        SNDRV_CTL_EVENT_MASK_INFO,
1067                        snd_ctl_build_ioff(&id, kctl, idx));
1068 }
1069 
1070 static void snd_emu10k1_pcm_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
1071 {
1072         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_routing, idx, activate);
1073         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_volume, idx, activate);
1074         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_attn, idx, activate);
1075 }
1076 
1077 static void snd_emu10k1_pcm_efx_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
1078 {
1079         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_routing, idx, activate);
1080         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_volume, idx, activate);
1081         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_attn, idx, activate);
1082 }
1083 
1084 static void snd_emu10k1_pcm_free_substream(struct snd_pcm_runtime *runtime)
1085 {
1086         kfree(runtime->private_data);
1087 }
1088 
1089 static int snd_emu10k1_efx_playback_close(struct snd_pcm_substream *substream)
1090 {
1091         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1092         struct snd_emu10k1_pcm_mixer *mix;
1093         int i;
1094 
1095         for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
1096                 mix = &emu->efx_pcm_mixer[i];
1097                 mix->epcm = NULL;
1098                 snd_emu10k1_pcm_efx_mixer_notify(emu, i, 0);
1099         }
1100         return 0;
1101 }
1102 
1103 static int snd_emu10k1_efx_playback_open(struct snd_pcm_substream *substream)
1104 {
1105         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1106         struct snd_emu10k1_pcm *epcm;
1107         struct snd_emu10k1_pcm_mixer *mix;
1108         struct snd_pcm_runtime *runtime = substream->runtime;
1109         int i;
1110 
1111         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1112         if (epcm == NULL)
1113                 return -ENOMEM;
1114         epcm->emu = emu;
1115         epcm->type = PLAYBACK_EFX;
1116         epcm->substream = substream;
1117         
1118         emu->pcm_playback_efx_substream = substream;
1119 
1120         runtime->private_data = epcm;
1121         runtime->private_free = snd_emu10k1_pcm_free_substream;
1122         runtime->hw = snd_emu10k1_efx_playback;
1123         
1124         for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
1125                 mix = &emu->efx_pcm_mixer[i];
1126                 mix->send_routing[0][0] = i;
1127                 memset(&mix->send_volume, 0, sizeof(mix->send_volume));
1128                 mix->send_volume[0][0] = 255;
1129                 mix->attn[0] = 0xffff;
1130                 mix->epcm = epcm;
1131                 snd_emu10k1_pcm_efx_mixer_notify(emu, i, 1);
1132         }
1133         return 0;
1134 }
1135 
1136 static int snd_emu10k1_playback_open(struct snd_pcm_substream *substream)
1137 {
1138         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1139         struct snd_emu10k1_pcm *epcm;
1140         struct snd_emu10k1_pcm_mixer *mix;
1141         struct snd_pcm_runtime *runtime = substream->runtime;
1142         int i, err, sample_rate;
1143 
1144         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1145         if (epcm == NULL)
1146                 return -ENOMEM;
1147         epcm->emu = emu;
1148         epcm->type = PLAYBACK_EMUVOICE;
1149         epcm->substream = substream;
1150         runtime->private_data = epcm;
1151         runtime->private_free = snd_emu10k1_pcm_free_substream;
1152         runtime->hw = snd_emu10k1_playback;
1153         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
1154                 kfree(epcm);
1155                 return err;
1156         }
1157         if ((err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX)) < 0) {
1158                 kfree(epcm);
1159                 return err;
1160         }
1161         if (emu->card_capabilities->emu_model && emu->emu1010.internal_clock == 0)
1162                 sample_rate = 44100;
1163         else
1164                 sample_rate = 48000;
1165         err = snd_pcm_hw_rule_noresample(runtime, sample_rate);
1166         if (err < 0) {
1167                 kfree(epcm);
1168                 return err;
1169         }
1170         mix = &emu->pcm_mixer[substream->number];
1171         for (i = 0; i < 4; i++)
1172                 mix->send_routing[0][i] = mix->send_routing[1][i] = mix->send_routing[2][i] = i;
1173         memset(&mix->send_volume, 0, sizeof(mix->send_volume));
1174         mix->send_volume[0][0] = mix->send_volume[0][1] =
1175         mix->send_volume[1][0] = mix->send_volume[2][1] = 255;
1176         mix->attn[0] = mix->attn[1] = mix->attn[2] = 0xffff;
1177         mix->epcm = epcm;
1178         snd_emu10k1_pcm_mixer_notify(emu, substream->number, 1);
1179         return 0;
1180 }
1181 
1182 static int snd_emu10k1_playback_close(struct snd_pcm_substream *substream)
1183 {
1184         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1185         struct snd_emu10k1_pcm_mixer *mix = &emu->pcm_mixer[substream->number];
1186 
1187         mix->epcm = NULL;
1188         snd_emu10k1_pcm_mixer_notify(emu, substream->number, 0);
1189         return 0;
1190 }
1191 
1192 static int snd_emu10k1_capture_open(struct snd_pcm_substream *substream)
1193 {
1194         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1195         struct snd_pcm_runtime *runtime = substream->runtime;
1196         struct snd_emu10k1_pcm *epcm;
1197 
1198         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1199         if (epcm == NULL)
1200                 return -ENOMEM;
1201         epcm->emu = emu;
1202         epcm->type = CAPTURE_AC97ADC;
1203         epcm->substream = substream;
1204         epcm->capture_ipr = IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL;
1205         epcm->capture_inte = INTE_ADCBUFENABLE;
1206         epcm->capture_ba_reg = ADCBA;
1207         epcm->capture_bs_reg = ADCBS;
1208         epcm->capture_idx_reg = emu->audigy ? A_ADCIDX : ADCIDX;
1209         runtime->private_data = epcm;
1210         runtime->private_free = snd_emu10k1_pcm_free_substream;
1211         runtime->hw = snd_emu10k1_capture;
1212         emu->capture_interrupt = snd_emu10k1_pcm_ac97adc_interrupt;
1213         emu->pcm_capture_substream = substream;
1214         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1215         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_capture_rates);
1216         return 0;
1217 }
1218 
1219 static int snd_emu10k1_capture_close(struct snd_pcm_substream *substream)
1220 {
1221         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1222 
1223         emu->capture_interrupt = NULL;
1224         emu->pcm_capture_substream = NULL;
1225         return 0;
1226 }
1227 
1228 static int snd_emu10k1_capture_mic_open(struct snd_pcm_substream *substream)
1229 {
1230         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1231         struct snd_emu10k1_pcm *epcm;
1232         struct snd_pcm_runtime *runtime = substream->runtime;
1233 
1234         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1235         if (epcm == NULL)
1236                 return -ENOMEM;
1237         epcm->emu = emu;
1238         epcm->type = CAPTURE_AC97MIC;
1239         epcm->substream = substream;
1240         epcm->capture_ipr = IPR_MICBUFFULL|IPR_MICBUFHALFFULL;
1241         epcm->capture_inte = INTE_MICBUFENABLE;
1242         epcm->capture_ba_reg = MICBA;
1243         epcm->capture_bs_reg = MICBS;
1244         epcm->capture_idx_reg = emu->audigy ? A_MICIDX : MICIDX;
1245         substream->runtime->private_data = epcm;
1246         substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1247         runtime->hw = snd_emu10k1_capture;
1248         runtime->hw.rates = SNDRV_PCM_RATE_8000;
1249         runtime->hw.rate_min = runtime->hw.rate_max = 8000;
1250         runtime->hw.channels_min = 1;
1251         emu->capture_mic_interrupt = snd_emu10k1_pcm_ac97mic_interrupt;
1252         emu->pcm_capture_mic_substream = substream;
1253         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1254         return 0;
1255 }
1256 
1257 static int snd_emu10k1_capture_mic_close(struct snd_pcm_substream *substream)
1258 {
1259         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1260 
1261         emu->capture_interrupt = NULL;
1262         emu->pcm_capture_mic_substream = NULL;
1263         return 0;
1264 }
1265 
1266 static int snd_emu10k1_capture_efx_open(struct snd_pcm_substream *substream)
1267 {
1268         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1269         struct snd_emu10k1_pcm *epcm;
1270         struct snd_pcm_runtime *runtime = substream->runtime;
1271         int nefx = emu->audigy ? 64 : 32;
1272         int idx;
1273 
1274         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1275         if (epcm == NULL)
1276                 return -ENOMEM;
1277         epcm->emu = emu;
1278         epcm->type = CAPTURE_EFX;
1279         epcm->substream = substream;
1280         epcm->capture_ipr = IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL;
1281         epcm->capture_inte = INTE_EFXBUFENABLE;
1282         epcm->capture_ba_reg = FXBA;
1283         epcm->capture_bs_reg = FXBS;
1284         epcm->capture_idx_reg = FXIDX;
1285         substream->runtime->private_data = epcm;
1286         substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1287         runtime->hw = snd_emu10k1_capture_efx;
1288         runtime->hw.rates = SNDRV_PCM_RATE_48000;
1289         runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1290         spin_lock_irq(&emu->reg_lock);
1291         if (emu->card_capabilities->emu_model) {
1292                 /*  Nb. of channels has been increased to 16 */
1293                 /* TODO
1294                  * SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE
1295                  * SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
1296                  * SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
1297                  * SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000
1298                  * rate_min = 44100,
1299                  * rate_max = 192000,
1300                  * channels_min = 16,
1301                  * channels_max = 16,
1302                  * Need to add mixer control to fix sample rate
1303                  *                 
1304                  * There are 32 mono channels of 16bits each.
1305                  * 24bit Audio uses 2x channels over 16bit
1306                  * 96kHz uses 2x channels over 48kHz
1307                  * 192kHz uses 4x channels over 48kHz
1308                  * So, for 48kHz 24bit, one has 16 channels
1309                  * for 96kHz 24bit, one has 8 channels
1310                  * for 192kHz 24bit, one has 4 channels
1311                  *
1312                  */
1313 #if 1
1314                 switch (emu->emu1010.internal_clock) {
1315                 case 0:
1316                         /* For 44.1kHz */
1317                         runtime->hw.rates = SNDRV_PCM_RATE_44100;
1318                         runtime->hw.rate_min = runtime->hw.rate_max = 44100;
1319                         runtime->hw.channels_min =
1320                                 runtime->hw.channels_max = 16;
1321                         break;
1322                 case 1:
1323                         /* For 48kHz */
1324                         runtime->hw.rates = SNDRV_PCM_RATE_48000;
1325                         runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1326                         runtime->hw.channels_min =
1327                                 runtime->hw.channels_max = 16;
1328                         break;
1329                 }
1330 #endif
1331 #if 0
1332                 /* For 96kHz */
1333                 runtime->hw.rates = SNDRV_PCM_RATE_96000;
1334                 runtime->hw.rate_min = runtime->hw.rate_max = 96000;
1335                 runtime->hw.channels_min = runtime->hw.channels_max = 4;
1336 #endif
1337 #if 0
1338                 /* For 192kHz */
1339                 runtime->hw.rates = SNDRV_PCM_RATE_192000;
1340                 runtime->hw.rate_min = runtime->hw.rate_max = 192000;
1341                 runtime->hw.channels_min = runtime->hw.channels_max = 2;
1342 #endif
1343                 runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;
1344                 /* efx_voices_mask[0] is expected to be zero
1345                  * efx_voices_mask[1] is expected to have 32bits set
1346                  */
1347         } else {
1348                 runtime->hw.channels_min = runtime->hw.channels_max = 0;
1349                 for (idx = 0; idx < nefx; idx++) {
1350                         if (emu->efx_voices_mask[idx/32] & (1 << (idx%32))) {
1351                                 runtime->hw.channels_min++;
1352                                 runtime->hw.channels_max++;
1353                         }
1354                 }
1355         }
1356         epcm->capture_cr_val = emu->efx_voices_mask[0];
1357         epcm->capture_cr_val2 = emu->efx_voices_mask[1];
1358         spin_unlock_irq(&emu->reg_lock);
1359         emu->capture_efx_interrupt = snd_emu10k1_pcm_efx_interrupt;
1360         emu->pcm_capture_efx_substream = substream;
1361         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1362         return 0;
1363 }
1364 
1365 static int snd_emu10k1_capture_efx_close(struct snd_pcm_substream *substream)
1366 {
1367         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1368 
1369         emu->capture_interrupt = NULL;
1370         emu->pcm_capture_efx_substream = NULL;
1371         return 0;
1372 }
1373 
1374 static const struct snd_pcm_ops snd_emu10k1_playback_ops = {
1375         .open =                 snd_emu10k1_playback_open,
1376         .close =                snd_emu10k1_playback_close,
1377         .ioctl =                snd_pcm_lib_ioctl,
1378         .hw_params =            snd_emu10k1_playback_hw_params,
1379         .hw_free =              snd_emu10k1_playback_hw_free,
1380         .prepare =              snd_emu10k1_playback_prepare,
1381         .trigger =              snd_emu10k1_playback_trigger,
1382         .pointer =              snd_emu10k1_playback_pointer,
1383         .page =                 snd_pcm_sgbuf_ops_page,
1384 };
1385 
1386 static const struct snd_pcm_ops snd_emu10k1_capture_ops = {
1387         .open =                 snd_emu10k1_capture_open,
1388         .close =                snd_emu10k1_capture_close,
1389         .ioctl =                snd_pcm_lib_ioctl,
1390         .hw_params =            snd_emu10k1_capture_hw_params,
1391         .hw_free =              snd_emu10k1_capture_hw_free,
1392         .prepare =              snd_emu10k1_capture_prepare,
1393         .trigger =              snd_emu10k1_capture_trigger,
1394         .pointer =              snd_emu10k1_capture_pointer,
1395 };
1396 
1397 /* EFX playback */
1398 static const struct snd_pcm_ops snd_emu10k1_efx_playback_ops = {
1399         .open =                 snd_emu10k1_efx_playback_open,
1400         .close =                snd_emu10k1_efx_playback_close,
1401         .ioctl =                snd_pcm_lib_ioctl,
1402         .hw_params =            snd_emu10k1_playback_hw_params,
1403         .hw_free =              snd_emu10k1_efx_playback_hw_free,
1404         .prepare =              snd_emu10k1_efx_playback_prepare,
1405         .trigger =              snd_emu10k1_efx_playback_trigger,
1406         .pointer =              snd_emu10k1_efx_playback_pointer,
1407         .page =                 snd_pcm_sgbuf_ops_page,
1408 };
1409 
1410 int snd_emu10k1_pcm(struct snd_emu10k1 *emu, int device)
1411 {
1412         struct snd_pcm *pcm;
1413         struct snd_pcm_substream *substream;
1414         int err;
1415 
1416         if ((err = snd_pcm_new(emu->card, "emu10k1", device, 32, 1, &pcm)) < 0)
1417                 return err;
1418 
1419         pcm->private_data = emu;
1420 
1421         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_playback_ops);
1422         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_ops);
1423 
1424         pcm->info_flags = 0;
1425         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1426         strcpy(pcm->name, "ADC Capture/Standard PCM Playback");
1427         emu->pcm = pcm;
1428 
1429         for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1430                 if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
1431                         return err;
1432 
1433         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substream->next)
1434                 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1435 
1436         return 0;
1437 }
1438 
1439 int snd_emu10k1_pcm_multi(struct snd_emu10k1 *emu, int device)
1440 {
1441         struct snd_pcm *pcm;
1442         struct snd_pcm_substream *substream;
1443         int err;
1444 
1445         if ((err = snd_pcm_new(emu->card, "emu10k1", device, 1, 0, &pcm)) < 0)
1446                 return err;
1447 
1448         pcm->private_data = emu;
1449 
1450         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_efx_playback_ops);
1451 
1452         pcm->info_flags = 0;
1453         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1454         strcpy(pcm->name, "Multichannel Playback");
1455         emu->pcm_multi = pcm;
1456 
1457         for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1458                 if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
1459                         return err;
1460 
1461         return 0;
1462 }
1463 
1464 
1465 static const struct snd_pcm_ops snd_emu10k1_capture_mic_ops = {
1466         .open =                 snd_emu10k1_capture_mic_open,
1467         .close =                snd_emu10k1_capture_mic_close,
1468         .ioctl =                snd_pcm_lib_ioctl,
1469         .hw_params =            snd_emu10k1_capture_hw_params,
1470         .hw_free =              snd_emu10k1_capture_hw_free,
1471         .prepare =              snd_emu10k1_capture_prepare,
1472         .trigger =              snd_emu10k1_capture_trigger,
1473         .pointer =              snd_emu10k1_capture_pointer,
1474 };
1475 
1476 int snd_emu10k1_pcm_mic(struct snd_emu10k1 *emu, int device)
1477 {
1478         struct snd_pcm *pcm;
1479         int err;
1480 
1481         if ((err = snd_pcm_new(emu->card, "emu10k1 mic", device, 0, 1, &pcm)) < 0)
1482                 return err;
1483 
1484         pcm->private_data = emu;
1485 
1486         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_mic_ops);
1487 
1488         pcm->info_flags = 0;
1489         strcpy(pcm->name, "Mic Capture");
1490         emu->pcm_mic = pcm;
1491 
1492         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1493 
1494         return 0;
1495 }
1496 
1497 static int snd_emu10k1_pcm_efx_voices_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1498 {
1499         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1500         int nefx = emu->audigy ? 64 : 32;
1501         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1502         uinfo->count = nefx;
1503         uinfo->value.integer.min = 0;
1504         uinfo->value.integer.max = 1;
1505         return 0;
1506 }
1507 
1508 static int snd_emu10k1_pcm_efx_voices_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1509 {
1510         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1511         int nefx = emu->audigy ? 64 : 32;
1512         int idx;
1513         
1514         spin_lock_irq(&emu->reg_lock);
1515         for (idx = 0; idx < nefx; idx++)
1516                 ucontrol->value.integer.value[idx] = (emu->efx_voices_mask[idx / 32] & (1 << (idx % 32))) ? 1 : 0;
1517         spin_unlock_irq(&emu->reg_lock);
1518         return 0;
1519 }
1520 
1521 static int snd_emu10k1_pcm_efx_voices_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1522 {
1523         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1524         unsigned int nval[2], bits;
1525         int nefx = emu->audigy ? 64 : 32;
1526         int nefxb = emu->audigy ? 7 : 6;
1527         int change, idx;
1528         
1529         nval[0] = nval[1] = 0;
1530         for (idx = 0, bits = 0; idx < nefx; idx++)
1531                 if (ucontrol->value.integer.value[idx]) {
1532                         nval[idx / 32] |= 1 << (idx % 32);
1533                         bits++;
1534                 }
1535                 
1536         for (idx = 0; idx < nefxb; idx++)
1537                 if (1 << idx == bits)
1538                         break;
1539         
1540         if (idx >= nefxb)
1541                 return -EINVAL;
1542 
1543         spin_lock_irq(&emu->reg_lock);
1544         change = (nval[0] != emu->efx_voices_mask[0]) ||
1545                 (nval[1] != emu->efx_voices_mask[1]);
1546         emu->efx_voices_mask[0] = nval[0];
1547         emu->efx_voices_mask[1] = nval[1];
1548         spin_unlock_irq(&emu->reg_lock);
1549         return change;
1550 }
1551 
1552 static const struct snd_kcontrol_new snd_emu10k1_pcm_efx_voices_mask = {
1553         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1554         .name = "Captured FX8010 Outputs",
1555         .info = snd_emu10k1_pcm_efx_voices_mask_info,
1556         .get = snd_emu10k1_pcm_efx_voices_mask_get,
1557         .put = snd_emu10k1_pcm_efx_voices_mask_put
1558 };
1559 
1560 static const struct snd_pcm_ops snd_emu10k1_capture_efx_ops = {
1561         .open =                 snd_emu10k1_capture_efx_open,
1562         .close =                snd_emu10k1_capture_efx_close,
1563         .ioctl =                snd_pcm_lib_ioctl,
1564         .hw_params =            snd_emu10k1_capture_hw_params,
1565         .hw_free =              snd_emu10k1_capture_hw_free,
1566         .prepare =              snd_emu10k1_capture_prepare,
1567         .trigger =              snd_emu10k1_capture_trigger,
1568         .pointer =              snd_emu10k1_capture_pointer,
1569 };
1570 
1571 
1572 /* EFX playback */
1573 
1574 #define INITIAL_TRAM_SHIFT     14
1575 #define INITIAL_TRAM_POS(size) ((((size) / 2) - INITIAL_TRAM_SHIFT) - 1)
1576 
1577 static void snd_emu10k1_fx8010_playback_irq(struct snd_emu10k1 *emu, void *private_data)
1578 {
1579         struct snd_pcm_substream *substream = private_data;
1580         snd_pcm_period_elapsed(substream);
1581 }
1582 
1583 static void snd_emu10k1_fx8010_playback_tram_poke1(unsigned short *dst_left,
1584                                                    unsigned short *dst_right,
1585                                                    unsigned short *src,
1586                                                    unsigned int count,
1587                                                    unsigned int tram_shift)
1588 {
1589         /*
1590         dev_dbg(emu->card->dev,
1591                 "tram_poke1: dst_left = 0x%p, dst_right = 0x%p, "
1592                "src = 0x%p, count = 0x%x\n",
1593                dst_left, dst_right, src, count);
1594         */
1595         if ((tram_shift & 1) == 0) {
1596                 while (count--) {
1597                         *dst_left-- = *src++;
1598                         *dst_right-- = *src++;
1599                 }
1600         } else {
1601                 while (count--) {
1602                         *dst_right-- = *src++;
1603                         *dst_left-- = *src++;
1604                 }
1605         }
1606 }
1607 
1608 static void fx8010_pb_trans_copy(struct snd_pcm_substream *substream,
1609                                  struct snd_pcm_indirect *rec, size_t bytes)
1610 {
1611         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1612         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1613         unsigned int tram_size = pcm->buffer_size;
1614         unsigned short *src = (unsigned short *)(substream->runtime->dma_area + rec->sw_data);
1615         unsigned int frames = bytes >> 2, count;
1616         unsigned int tram_pos = pcm->tram_pos;
1617         unsigned int tram_shift = pcm->tram_shift;
1618 
1619         while (frames > tram_pos) {
1620                 count = tram_pos + 1;
1621                 snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1622                                                        (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1623                                                        src, count, tram_shift);
1624                 src += count * 2;
1625                 frames -= count;
1626                 tram_pos = (tram_size / 2) - 1;
1627                 tram_shift++;
1628         }
1629         snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1630                                                (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1631                                                src, frames, tram_shift);
1632         tram_pos -= frames;
1633         pcm->tram_pos = tram_pos;
1634         pcm->tram_shift = tram_shift;
1635 }
1636 
1637 static int snd_emu10k1_fx8010_playback_transfer(struct snd_pcm_substream *substream)
1638 {
1639         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1640         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1641 
1642         return snd_pcm_indirect_playback_transfer(substream, &pcm->pcm_rec,
1643                                                   fx8010_pb_trans_copy);
1644 }
1645 
1646 static int snd_emu10k1_fx8010_playback_hw_params(struct snd_pcm_substream *substream,
1647                                                  struct snd_pcm_hw_params *hw_params)
1648 {
1649         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1650 }
1651 
1652 static int snd_emu10k1_fx8010_playback_hw_free(struct snd_pcm_substream *substream)
1653 {
1654         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1655         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1656         unsigned int i;
1657 
1658         for (i = 0; i < pcm->channels; i++)
1659                 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, 0);
1660         snd_pcm_lib_free_pages(substream);
1661         return 0;
1662 }
1663 
1664 static int snd_emu10k1_fx8010_playback_prepare(struct snd_pcm_substream *substream)
1665 {
1666         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1667         struct snd_pcm_runtime *runtime = substream->runtime;
1668         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1669         unsigned int i;
1670         
1671         /*
1672         dev_dbg(emu->card->dev, "prepare: etram_pages = 0x%p, dma_area = 0x%x, "
1673                "buffer_size = 0x%x (0x%x)\n",
1674                emu->fx8010.etram_pages, runtime->dma_area,
1675                runtime->buffer_size, runtime->buffer_size << 2);
1676         */
1677         memset(&pcm->pcm_rec, 0, sizeof(pcm->pcm_rec));
1678         pcm->pcm_rec.hw_buffer_size = pcm->buffer_size * 2; /* byte size */
1679         pcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1680         pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1681         pcm->tram_shift = 0;
1682         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_running, 0, 0);     /* reset */
1683         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);     /* reset */
1684         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_size, 0, runtime->buffer_size);
1685         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_ptr, 0, 0);         /* reset ptr number */
1686         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_count, 0, runtime->period_size);
1687         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_tmpcount, 0, runtime->period_size);
1688         for (i = 0; i < pcm->channels; i++)
1689                 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, (TANKMEMADDRREG_READ|TANKMEMADDRREG_ALIGN) + i * (runtime->buffer_size / pcm->channels));
1690         return 0;
1691 }
1692 
1693 static int snd_emu10k1_fx8010_playback_trigger(struct snd_pcm_substream *substream, int cmd)
1694 {
1695         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1696         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1697         int result = 0;
1698 
1699         spin_lock(&emu->reg_lock);
1700         switch (cmd) {
1701         case SNDRV_PCM_TRIGGER_START:
1702                 /* follow thru */
1703         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1704         case SNDRV_PCM_TRIGGER_RESUME:
1705 #ifdef EMU10K1_SET_AC3_IEC958
1706         {
1707                 int i;
1708                 for (i = 0; i < 3; i++) {
1709                         unsigned int bits;
1710                         bits = SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1711                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | SPCS_GENERATIONSTATUS |
1712                                0x00001200 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT | SPCS_NOTAUDIODATA;
1713                         snd_emu10k1_ptr_write(emu, SPCS0 + i, 0, bits);
1714                 }
1715         }
1716 #endif
1717                 result = snd_emu10k1_fx8010_register_irq_handler(emu, snd_emu10k1_fx8010_playback_irq, pcm->gpr_running, substream, &pcm->irq);
1718                 if (result < 0)
1719                         goto __err;
1720                 snd_emu10k1_fx8010_playback_transfer(substream);        /* roll the ball */
1721                 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 1);
1722                 break;
1723         case SNDRV_PCM_TRIGGER_STOP:
1724         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1725         case SNDRV_PCM_TRIGGER_SUSPEND:
1726                 snd_emu10k1_fx8010_unregister_irq_handler(emu, &pcm->irq);
1727                 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);
1728                 pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1729                 pcm->tram_shift = 0;
1730                 break;
1731         default:
1732                 result = -EINVAL;
1733                 break;
1734         }
1735       __err:
1736         spin_unlock(&emu->reg_lock);
1737         return result;
1738 }
1739 
1740 static snd_pcm_uframes_t snd_emu10k1_fx8010_playback_pointer(struct snd_pcm_substream *substream)
1741 {
1742         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1743         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1744         size_t ptr; /* byte pointer */
1745 
1746         if (!snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_trigger, 0))
1747                 return 0;
1748         ptr = snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_ptr, 0) << 2;
1749         return snd_pcm_indirect_playback_pointer(substream, &pcm->pcm_rec, ptr);
1750 }
1751 
1752 static const struct snd_pcm_hardware snd_emu10k1_fx8010_playback =
1753 {
1754         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1755                                  SNDRV_PCM_INFO_RESUME |
1756                                  /* SNDRV_PCM_INFO_MMAP_VALID | */ SNDRV_PCM_INFO_PAUSE |
1757                                  SNDRV_PCM_INFO_SYNC_APPLPTR),
1758         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1759         .rates =                SNDRV_PCM_RATE_48000,
1760         .rate_min =             48000,
1761         .rate_max =             48000,
1762         .channels_min =         1,
1763         .channels_max =         1,
1764         .buffer_bytes_max =     (128*1024),
1765         .period_bytes_min =     1024,
1766         .period_bytes_max =     (128*1024),
1767         .periods_min =          2,
1768         .periods_max =          1024,
1769         .fifo_size =            0,
1770 };
1771 
1772 static int snd_emu10k1_fx8010_playback_open(struct snd_pcm_substream *substream)
1773 {
1774         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1775         struct snd_pcm_runtime *runtime = substream->runtime;
1776         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1777 
1778         runtime->hw = snd_emu10k1_fx8010_playback;
1779         runtime->hw.channels_min = runtime->hw.channels_max = pcm->channels;
1780         runtime->hw.period_bytes_max = (pcm->buffer_size * 2) / 2;
1781         spin_lock_irq(&emu->reg_lock);
1782         if (pcm->valid == 0) {
1783                 spin_unlock_irq(&emu->reg_lock);
1784                 return -ENODEV;
1785         }
1786         pcm->opened = 1;
1787         spin_unlock_irq(&emu->reg_lock);
1788         return 0;
1789 }
1790 
1791 static int snd_emu10k1_fx8010_playback_close(struct snd_pcm_substream *substream)
1792 {
1793         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1794         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1795 
1796         spin_lock_irq(&emu->reg_lock);
1797         pcm->opened = 0;
1798         spin_unlock_irq(&emu->reg_lock);
1799         return 0;
1800 }
1801 
1802 static const struct snd_pcm_ops snd_emu10k1_fx8010_playback_ops = {
1803         .open =                 snd_emu10k1_fx8010_playback_open,
1804         .close =                snd_emu10k1_fx8010_playback_close,
1805         .ioctl =                snd_pcm_lib_ioctl,
1806         .hw_params =            snd_emu10k1_fx8010_playback_hw_params,
1807         .hw_free =              snd_emu10k1_fx8010_playback_hw_free,
1808         .prepare =              snd_emu10k1_fx8010_playback_prepare,
1809         .trigger =              snd_emu10k1_fx8010_playback_trigger,
1810         .pointer =              snd_emu10k1_fx8010_playback_pointer,
1811         .ack =                  snd_emu10k1_fx8010_playback_transfer,
1812 };
1813 
1814 int snd_emu10k1_pcm_efx(struct snd_emu10k1 *emu, int device)
1815 {
1816         struct snd_pcm *pcm;
1817         struct snd_kcontrol *kctl;
1818         int err;
1819 
1820         if ((err = snd_pcm_new(emu->card, "emu10k1 efx", device, 8, 1, &pcm)) < 0)
1821                 return err;
1822 
1823         pcm->private_data = emu;
1824 
1825         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_fx8010_playback_ops);
1826         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_efx_ops);
1827 
1828         pcm->info_flags = 0;
1829         strcpy(pcm->name, "Multichannel Capture/PT Playback");
1830         emu->pcm_efx = pcm;
1831 
1832         /* EFX capture - record the "FXBUS2" channels, by default we connect the EXTINs 
1833          * to these
1834          */     
1835         
1836         /* emu->efx_voices_mask[0] = FXWC_DEFAULTROUTE_C | FXWC_DEFAULTROUTE_A; */
1837         if (emu->audigy) {
1838                 emu->efx_voices_mask[0] = 0;
1839                 if (emu->card_capabilities->emu_model)
1840                         /* Pavel Hofman - 32 voices will be used for
1841                          * capture (write mode) -
1842                          * each bit = corresponding voice
1843                          */
1844                         emu->efx_voices_mask[1] = 0xffffffff;
1845                 else
1846                         emu->efx_voices_mask[1] = 0xffff;
1847         } else {
1848                 emu->efx_voices_mask[0] = 0xffff0000;
1849                 emu->efx_voices_mask[1] = 0;
1850         }
1851         /* For emu1010, the control has to set 32 upper bits (voices)
1852          * out of the 64 bits (voices) to true for the 16-channels capture
1853          * to work correctly. Correct A_FXWC2 initial value (0xffffffff)
1854          * is already defined but the snd_emu10k1_pcm_efx_voices_mask
1855          * control can override this register's value.
1856          */
1857         kctl = snd_ctl_new1(&snd_emu10k1_pcm_efx_voices_mask, emu);
1858         if (!kctl)
1859                 return -ENOMEM;
1860         kctl->id.device = device;
1861         err = snd_ctl_add(emu->card, kctl);
1862         if (err < 0)
1863                 return err;
1864 
1865         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1866 
1867         return 0;
1868 }
1869 

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