8e6caf581c0ccf4e351359c58fdd2b33b49169fd
[linux-2.6.git] / sound / pci / emu10k1 / emupcm.c
1 /*
2  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
3  *                   Creative Labs, Inc.
4  *  Routines for control of EMU10K1 chips / PCM routines
5  *  Multichannel PCM support Copyright (c) Lee Revell <rlrevell@joe-job.com>
6  *
7  *  BUGS:
8  *    --
9  *
10  *  TODO:
11  *    --
12  *
13  *   This program is free software; you can redistribute it and/or modify
14  *   it under the terms of the GNU General Public License as published by
15  *   the Free Software Foundation; either version 2 of the License, or
16  *   (at your option) any later version.
17  *
18  *   This program is distributed in the hope that it will be useful,
19  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
20  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21  *   GNU General Public License for more details.
22  *
23  *   You should have received a copy of the GNU General Public License
24  *   along with this program; if not, write to the Free Software
25  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
26  *
27  */
28
29 #include <sound/driver.h>
30 #include <linux/pci.h>
31 #include <linux/delay.h>
32 #include <linux/slab.h>
33 #include <linux/time.h>
34 #include <linux/init.h>
35 #include <sound/core.h>
36 #include <sound/emu10k1.h>
37
38 static void snd_emu10k1_pcm_interrupt(struct snd_emu10k1 *emu,
39                                       struct snd_emu10k1_voice *voice)
40 {
41         struct snd_emu10k1_pcm *epcm;
42
43         if ((epcm = voice->epcm) == NULL)
44                 return;
45         if (epcm->substream == NULL)
46                 return;
47 #if 0
48         printk("IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
49                         epcm->substream->runtime->hw->pointer(emu, epcm->substream),
50                         snd_pcm_lib_period_bytes(epcm->substream),
51                         snd_pcm_lib_buffer_bytes(epcm->substream));
52 #endif
53         snd_pcm_period_elapsed(epcm->substream);
54 }
55
56 static void snd_emu10k1_pcm_ac97adc_interrupt(struct snd_emu10k1 *emu,
57                                               unsigned int status)
58 {
59 #if 0
60         if (status & IPR_ADCBUFHALFFULL) {
61                 if (emu->pcm_capture_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
62                         return;
63         }
64 #endif
65         snd_pcm_period_elapsed(emu->pcm_capture_substream);
66 }
67
68 static void snd_emu10k1_pcm_ac97mic_interrupt(struct snd_emu10k1 *emu,
69                                               unsigned int status)
70 {
71 #if 0
72         if (status & IPR_MICBUFHALFFULL) {
73                 if (emu->pcm_capture_mic_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
74                         return;
75         }
76 #endif
77         snd_pcm_period_elapsed(emu->pcm_capture_mic_substream);
78 }
79
80 static void snd_emu10k1_pcm_efx_interrupt(struct snd_emu10k1 *emu,
81                                           unsigned int status)
82 {
83 #if 0
84         if (status & IPR_EFXBUFHALFFULL) {
85                 if (emu->pcm_capture_efx_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
86                         return;
87         }
88 #endif
89         snd_pcm_period_elapsed(emu->pcm_capture_efx_substream);
90 }        
91
92 static snd_pcm_uframes_t snd_emu10k1_efx_playback_pointer(struct snd_pcm_substream *substream)
93 {
94         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
95         struct snd_pcm_runtime *runtime = substream->runtime;
96         struct snd_emu10k1_pcm *epcm = runtime->private_data;
97         unsigned int ptr;
98
99         if (!epcm->running)
100                 return 0;
101         ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff;
102         ptr += runtime->buffer_size;
103         ptr -= epcm->ccca_start_addr;
104         ptr %= runtime->buffer_size;
105
106         return ptr;
107 }
108
109 static int snd_emu10k1_pcm_channel_alloc(struct snd_emu10k1_pcm * epcm, int voices)
110 {
111         int err, i;
112
113         if (epcm->voices[1] != NULL && voices < 2) {
114                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
115                 epcm->voices[1] = NULL;
116         }
117         for (i = 0; i < voices; i++) {
118                 if (epcm->voices[i] == NULL)
119                         break;
120         }
121         if (i == voices)
122                 return 0; /* already allocated */
123
124         for (i = 0; i < ARRAY_SIZE(epcm->voices); i++) {
125                 if (epcm->voices[i]) {
126                         snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
127                         epcm->voices[i] = NULL;
128                 }
129         }
130         err = snd_emu10k1_voice_alloc(epcm->emu,
131                                       epcm->type == PLAYBACK_EMUVOICE ? EMU10K1_PCM : EMU10K1_EFX,
132                                       voices,
133                                       &epcm->voices[0]);
134         
135         if (err < 0)
136                 return err;
137         epcm->voices[0]->epcm = epcm;
138         if (voices > 1) {
139                 for (i = 1; i < voices; i++) {
140                         epcm->voices[i] = &epcm->emu->voices[epcm->voices[0]->number + i];
141                         epcm->voices[i]->epcm = epcm;
142                 }
143         }
144         if (epcm->extra == NULL) {
145                 err = snd_emu10k1_voice_alloc(epcm->emu,
146                                               epcm->type == PLAYBACK_EMUVOICE ? EMU10K1_PCM : EMU10K1_EFX,
147                                               1,
148                                               &epcm->extra);
149                 if (err < 0) {
150                         // printk("pcm_channel_alloc: failed extra: voices=%d, frame=%d\n", voices, frame);
151                         for (i = 0; i < voices; i++) {
152                                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
153                                 epcm->voices[i] = NULL;
154                         }
155                         return err;
156                 }
157                 epcm->extra->epcm = epcm;
158                 epcm->extra->interrupt = snd_emu10k1_pcm_interrupt;
159         }
160         return 0;
161 }
162
163 static unsigned int capture_period_sizes[31] = {
164         384,    448,    512,    640,
165         384*2,  448*2,  512*2,  640*2,
166         384*4,  448*4,  512*4,  640*4,
167         384*8,  448*8,  512*8,  640*8,
168         384*16, 448*16, 512*16, 640*16,
169         384*32, 448*32, 512*32, 640*32,
170         384*64, 448*64, 512*64, 640*64,
171         384*128,448*128,512*128
172 };
173
174 static struct snd_pcm_hw_constraint_list hw_constraints_capture_period_sizes = {
175         .count = 31,
176         .list = capture_period_sizes,
177         .mask = 0
178 };
179
180 static unsigned int capture_rates[8] = {
181         8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000
182 };
183
184 static struct snd_pcm_hw_constraint_list hw_constraints_capture_rates = {
185         .count = 8,
186         .list = capture_rates,
187         .mask = 0
188 };
189
190 static unsigned int snd_emu10k1_capture_rate_reg(unsigned int rate)
191 {
192         switch (rate) {
193         case 8000:      return ADCCR_SAMPLERATE_8;
194         case 11025:     return ADCCR_SAMPLERATE_11;
195         case 16000:     return ADCCR_SAMPLERATE_16;
196         case 22050:     return ADCCR_SAMPLERATE_22;
197         case 24000:     return ADCCR_SAMPLERATE_24;
198         case 32000:     return ADCCR_SAMPLERATE_32;
199         case 44100:     return ADCCR_SAMPLERATE_44;
200         case 48000:     return ADCCR_SAMPLERATE_48;
201         default:
202                         snd_BUG();
203                         return ADCCR_SAMPLERATE_8;
204         }
205 }
206
207 static unsigned int snd_emu10k1_audigy_capture_rate_reg(unsigned int rate)
208 {
209         switch (rate) {
210         case 8000:      return A_ADCCR_SAMPLERATE_8;
211         case 11025:     return A_ADCCR_SAMPLERATE_11;
212         case 12000:     return A_ADCCR_SAMPLERATE_12; /* really supported? */
213         case 16000:     return ADCCR_SAMPLERATE_16;
214         case 22050:     return ADCCR_SAMPLERATE_22;
215         case 24000:     return ADCCR_SAMPLERATE_24;
216         case 32000:     return ADCCR_SAMPLERATE_32;
217         case 44100:     return ADCCR_SAMPLERATE_44;
218         case 48000:     return ADCCR_SAMPLERATE_48;
219         default:
220                         snd_BUG();
221                         return A_ADCCR_SAMPLERATE_8;
222         }
223 }
224
225 static unsigned int emu10k1_calc_pitch_target(unsigned int rate)
226 {
227         unsigned int pitch_target;
228
229         pitch_target = (rate << 8) / 375;
230         pitch_target = (pitch_target >> 1) + (pitch_target & 1);
231         return pitch_target;
232 }
233
234 #define PITCH_48000 0x00004000
235 #define PITCH_96000 0x00008000
236 #define PITCH_85000 0x00007155
237 #define PITCH_80726 0x00006ba2
238 #define PITCH_67882 0x00005a82
239 #define PITCH_57081 0x00004c1c
240
241 static unsigned int emu10k1_select_interprom(unsigned int pitch_target)
242 {
243         if (pitch_target == PITCH_48000)
244                 return CCCA_INTERPROM_0;
245         else if (pitch_target < PITCH_48000)
246                 return CCCA_INTERPROM_1;
247         else if (pitch_target >= PITCH_96000)
248                 return CCCA_INTERPROM_0;
249         else if (pitch_target >= PITCH_85000)
250                 return CCCA_INTERPROM_6;
251         else if (pitch_target >= PITCH_80726)
252                 return CCCA_INTERPROM_5;
253         else if (pitch_target >= PITCH_67882)
254                 return CCCA_INTERPROM_4;
255         else if (pitch_target >= PITCH_57081)
256                 return CCCA_INTERPROM_3;
257         else  
258                 return CCCA_INTERPROM_2;
259 }
260
261 /*
262  * calculate cache invalidate size 
263  *
264  * stereo: channel is stereo
265  * w_16: using 16bit samples
266  *
267  * returns: cache invalidate size in samples
268  */
269 static inline int emu10k1_ccis(int stereo, int w_16)
270 {
271         if (w_16) {
272                 return stereo ? 24 : 26;
273         } else {
274                 return stereo ? 24*2 : 26*2;
275         }
276 }
277
278 static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu,
279                                        int master, int extra,
280                                        struct snd_emu10k1_voice *evoice,
281                                        unsigned int start_addr,
282                                        unsigned int end_addr,
283                                        struct snd_emu10k1_pcm_mixer *mix)
284 {
285         struct snd_pcm_substream *substream = evoice->epcm->substream;
286         struct snd_pcm_runtime *runtime = substream->runtime;
287         unsigned int silent_page, tmp;
288         int voice, stereo, w_16;
289         unsigned char attn, send_amount[8];
290         unsigned char send_routing[8];
291         unsigned long flags;
292         unsigned int pitch_target;
293         unsigned int ccis;
294
295         voice = evoice->number;
296         stereo = runtime->channels == 2;
297         w_16 = snd_pcm_format_width(runtime->format) == 16;
298
299         if (!extra && stereo) {
300                 start_addr >>= 1;
301                 end_addr >>= 1;
302         }
303         if (w_16) {
304                 start_addr >>= 1;
305                 end_addr >>= 1;
306         }
307
308         spin_lock_irqsave(&emu->reg_lock, flags);
309
310         /* volume parameters */
311         if (extra) {
312                 attn = 0;
313                 memset(send_routing, 0, sizeof(send_routing));
314                 send_routing[0] = 0;
315                 send_routing[1] = 1;
316                 send_routing[2] = 2;
317                 send_routing[3] = 3;
318                 memset(send_amount, 0, sizeof(send_amount));
319         } else {
320                 /* mono, left, right (master voice = left) */
321                 tmp = stereo ? (master ? 1 : 2) : 0;
322                 memcpy(send_routing, &mix->send_routing[tmp][0], 8);
323                 memcpy(send_amount, &mix->send_volume[tmp][0], 8);
324         }
325
326         ccis = emu10k1_ccis(stereo, w_16);
327         
328         if (master) {
329                 evoice->epcm->ccca_start_addr = start_addr + ccis;
330                 if (extra) {
331                         start_addr += ccis;
332                         end_addr += ccis;
333                 }
334                 if (stereo && !extra) {
335                         snd_emu10k1_ptr_write(emu, CPF, voice, CPF_STEREO_MASK);
336                         snd_emu10k1_ptr_write(emu, CPF, (voice + 1), CPF_STEREO_MASK);
337                 } else {
338                         snd_emu10k1_ptr_write(emu, CPF, voice, 0);
339                 }
340         }
341
342         // setup routing
343         if (emu->audigy) {
344                 snd_emu10k1_ptr_write(emu, A_FXRT1, voice,
345                                       snd_emu10k1_compose_audigy_fxrt1(send_routing));
346                 snd_emu10k1_ptr_write(emu, A_FXRT2, voice,
347                                       snd_emu10k1_compose_audigy_fxrt2(send_routing));
348                 snd_emu10k1_ptr_write(emu, A_SENDAMOUNTS, voice,
349                                       ((unsigned int)send_amount[4] << 24) |
350                                       ((unsigned int)send_amount[5] << 16) |
351                                       ((unsigned int)send_amount[6] << 8) |
352                                       (unsigned int)send_amount[7]);
353         } else
354                 snd_emu10k1_ptr_write(emu, FXRT, voice,
355                                       snd_emu10k1_compose_send_routing(send_routing));
356         // Stop CA
357         // Assumption that PT is already 0 so no harm overwriting
358         snd_emu10k1_ptr_write(emu, PTRX, voice, (send_amount[0] << 8) | send_amount[1]);
359         snd_emu10k1_ptr_write(emu, DSL, voice, end_addr | (send_amount[3] << 24));
360         snd_emu10k1_ptr_write(emu, PSST, voice, start_addr | (send_amount[2] << 24));
361         pitch_target = emu10k1_calc_pitch_target(runtime->rate);
362         if (extra)
363                 snd_emu10k1_ptr_write(emu, CCCA, voice, start_addr |
364                               emu10k1_select_interprom(pitch_target) |
365                               (w_16 ? 0 : CCCA_8BITSELECT));
366         else
367                 snd_emu10k1_ptr_write(emu, CCCA, voice, (start_addr + ccis) |
368                               emu10k1_select_interprom(pitch_target) |
369                               (w_16 ? 0 : CCCA_8BITSELECT));
370         // Clear filter delay memory
371         snd_emu10k1_ptr_write(emu, Z1, voice, 0);
372         snd_emu10k1_ptr_write(emu, Z2, voice, 0);
373         // invalidate maps
374         silent_page = ((unsigned int)emu->silent_page.addr << 1) | MAP_PTI_MASK;
375         snd_emu10k1_ptr_write(emu, MAPA, voice, silent_page);
376         snd_emu10k1_ptr_write(emu, MAPB, voice, silent_page);
377         // modulation envelope
378         snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
379         snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
380         snd_emu10k1_ptr_write(emu, ATKHLDM, voice, 0);
381         snd_emu10k1_ptr_write(emu, DCYSUSM, voice, 0x007f);
382         snd_emu10k1_ptr_write(emu, LFOVAL1, voice, 0x8000);
383         snd_emu10k1_ptr_write(emu, LFOVAL2, voice, 0x8000);
384         snd_emu10k1_ptr_write(emu, FMMOD, voice, 0);
385         snd_emu10k1_ptr_write(emu, TREMFRQ, voice, 0);
386         snd_emu10k1_ptr_write(emu, FM2FRQ2, voice, 0);
387         snd_emu10k1_ptr_write(emu, ENVVAL, voice, 0x8000);
388         // volume envelope
389         snd_emu10k1_ptr_write(emu, ATKHLDV, voice, 0x7f7f);
390         snd_emu10k1_ptr_write(emu, ENVVOL, voice, 0x0000);
391         // filter envelope
392         snd_emu10k1_ptr_write(emu, PEFE_FILTERAMOUNT, voice, 0x7f);
393         // pitch envelope
394         snd_emu10k1_ptr_write(emu, PEFE_PITCHAMOUNT, voice, 0);
395
396         spin_unlock_irqrestore(&emu->reg_lock, flags);
397 }
398
399 static int snd_emu10k1_playback_hw_params(struct snd_pcm_substream *substream,
400                                           struct snd_pcm_hw_params *hw_params)
401 {
402         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
403         struct snd_pcm_runtime *runtime = substream->runtime;
404         struct snd_emu10k1_pcm *epcm = runtime->private_data;
405         int err;
406
407         if ((err = snd_emu10k1_pcm_channel_alloc(epcm, params_channels(hw_params))) < 0)
408                 return err;
409         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
410                 return err;
411         if (err > 0) {  /* change */
412                 int mapped;
413                 if (epcm->memblk != NULL)
414                         snd_emu10k1_free_pages(emu, epcm->memblk);
415                 epcm->memblk = snd_emu10k1_alloc_pages(emu, substream);
416                 epcm->start_addr = 0;
417                 if (! epcm->memblk)
418                         return -ENOMEM;
419                 mapped = ((struct snd_emu10k1_memblk *)epcm->memblk)->mapped_page;
420                 if (mapped < 0)
421                         return -ENOMEM;
422                 epcm->start_addr = mapped << PAGE_SHIFT;
423         }
424         return 0;
425 }
426
427 static int snd_emu10k1_playback_hw_free(struct snd_pcm_substream *substream)
428 {
429         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
430         struct snd_pcm_runtime *runtime = substream->runtime;
431         struct snd_emu10k1_pcm *epcm;
432
433         if (runtime->private_data == NULL)
434                 return 0;
435         epcm = runtime->private_data;
436         if (epcm->extra) {
437                 snd_emu10k1_voice_free(epcm->emu, epcm->extra);
438                 epcm->extra = NULL;
439         }
440         if (epcm->voices[1]) {
441                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
442                 epcm->voices[1] = NULL;
443         }
444         if (epcm->voices[0]) {
445                 snd_emu10k1_voice_free(epcm->emu, epcm->voices[0]);
446                 epcm->voices[0] = NULL;
447         }
448         if (epcm->memblk) {
449                 snd_emu10k1_free_pages(emu, epcm->memblk);
450                 epcm->memblk = NULL;
451                 epcm->start_addr = 0;
452         }
453         snd_pcm_lib_free_pages(substream);
454         return 0;
455 }
456
457 static int snd_emu10k1_efx_playback_hw_free(struct snd_pcm_substream *substream)
458 {
459         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
460         struct snd_pcm_runtime *runtime = substream->runtime;
461         struct snd_emu10k1_pcm *epcm;
462         int i;
463
464         if (runtime->private_data == NULL)
465                 return 0;
466         epcm = runtime->private_data;
467         if (epcm->extra) {
468                 snd_emu10k1_voice_free(epcm->emu, epcm->extra);
469                 epcm->extra = NULL;
470         }
471         for (i=0; i < NUM_EFX_PLAYBACK; i++) {
472                 if (epcm->voices[i]) {
473                         snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
474                         epcm->voices[i] = NULL;
475                 }
476         }
477         if (epcm->memblk) {
478                 snd_emu10k1_free_pages(emu, epcm->memblk);
479                 epcm->memblk = NULL;
480                 epcm->start_addr = 0;
481         }
482         snd_pcm_lib_free_pages(substream);
483         return 0;
484 }
485
486 static int snd_emu10k1_playback_prepare(struct snd_pcm_substream *substream)
487 {
488         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
489         struct snd_pcm_runtime *runtime = substream->runtime;
490         struct snd_emu10k1_pcm *epcm = runtime->private_data;
491         unsigned int start_addr, end_addr;
492
493         start_addr = epcm->start_addr;
494         end_addr = snd_pcm_lib_period_bytes(substream);
495         if (runtime->channels == 2) {
496                 start_addr >>= 1;
497                 end_addr >>= 1;
498         }
499         end_addr += start_addr;
500         snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
501                                    start_addr, end_addr, NULL);
502         start_addr = epcm->start_addr;
503         end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream);
504         snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
505                                    start_addr, end_addr,
506                                    &emu->pcm_mixer[substream->number]);
507         if (epcm->voices[1])
508                 snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[1],
509                                            start_addr, end_addr,
510                                            &emu->pcm_mixer[substream->number]);
511         return 0;
512 }
513
514 static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream)
515 {
516         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
517         struct snd_pcm_runtime *runtime = substream->runtime;
518         struct snd_emu10k1_pcm *epcm = runtime->private_data;
519         unsigned int start_addr, end_addr;
520         unsigned int channel_size;
521         int i;
522
523         start_addr = epcm->start_addr;
524         end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream);
525
526         /*
527          * the kX driver leaves some space between voices
528          */
529         channel_size = ( end_addr - start_addr ) / NUM_EFX_PLAYBACK;
530
531         snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
532                                    start_addr, start_addr + (channel_size / 2), NULL);
533
534         /* only difference with the master voice is we use it for the pointer */
535         snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
536                                    start_addr, start_addr + channel_size,
537                                    &emu->efx_pcm_mixer[0]);
538
539         start_addr += channel_size;
540         for (i = 1; i < NUM_EFX_PLAYBACK; i++) {
541                 snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[i],
542                                            start_addr, start_addr + channel_size,
543                                            &emu->efx_pcm_mixer[i]);
544                 start_addr += channel_size;
545         }
546
547         return 0;
548 }
549
550 static struct snd_pcm_hardware snd_emu10k1_efx_playback =
551 {
552         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_NONINTERLEAVED |
553                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
554                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
555         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
556         .rates =                SNDRV_PCM_RATE_48000,
557         .rate_min =             48000,
558         .rate_max =             48000,
559         .channels_min =         NUM_EFX_PLAYBACK,
560         .channels_max =         NUM_EFX_PLAYBACK,
561         .buffer_bytes_max =     (64*1024),
562         .period_bytes_min =     64,
563         .period_bytes_max =     (64*1024),
564         .periods_min =          2,
565         .periods_max =          2,
566         .fifo_size =            0,
567 };
568
569 static int snd_emu10k1_capture_hw_params(struct snd_pcm_substream *substream,
570                                          struct snd_pcm_hw_params *hw_params)
571 {
572         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
573 }
574
575 static int snd_emu10k1_capture_hw_free(struct snd_pcm_substream *substream)
576 {
577         return snd_pcm_lib_free_pages(substream);
578 }
579
580 static int snd_emu10k1_capture_prepare(struct snd_pcm_substream *substream)
581 {
582         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
583         struct snd_pcm_runtime *runtime = substream->runtime;
584         struct snd_emu10k1_pcm *epcm = runtime->private_data;
585         int idx;
586
587         /* zeroing the buffer size will stop capture */
588         snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
589         switch (epcm->type) {
590         case CAPTURE_AC97ADC:
591                 snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
592                 break;
593         case CAPTURE_EFX:
594                 if (emu->audigy) {
595                         snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
596                         snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
597                 } else
598                         snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
599                 break;
600         default:
601                 break;
602         }       
603         snd_emu10k1_ptr_write(emu, epcm->capture_ba_reg, 0, runtime->dma_addr);
604         epcm->capture_bufsize = snd_pcm_lib_buffer_bytes(substream);
605         epcm->capture_bs_val = 0;
606         for (idx = 0; idx < 31; idx++) {
607                 if (capture_period_sizes[idx] == epcm->capture_bufsize) {
608                         epcm->capture_bs_val = idx + 1;
609                         break;
610                 }
611         }
612         if (epcm->capture_bs_val == 0) {
613                 snd_BUG();
614                 epcm->capture_bs_val++;
615         }
616         if (epcm->type == CAPTURE_AC97ADC) {
617                 epcm->capture_cr_val = emu->audigy ? A_ADCCR_LCHANENABLE : ADCCR_LCHANENABLE;
618                 if (runtime->channels > 1)
619                         epcm->capture_cr_val |= emu->audigy ? A_ADCCR_RCHANENABLE : ADCCR_RCHANENABLE;
620                 epcm->capture_cr_val |= emu->audigy ?
621                         snd_emu10k1_audigy_capture_rate_reg(runtime->rate) :
622                         snd_emu10k1_capture_rate_reg(runtime->rate);
623         }
624         return 0;
625 }
626
627 static void snd_emu10k1_playback_invalidate_cache(struct snd_emu10k1 *emu, int extra, struct snd_emu10k1_voice *evoice)
628 {
629         struct snd_pcm_runtime *runtime;
630         unsigned int voice, stereo, i, ccis, cra = 64, cs, sample;
631
632         if (evoice == NULL)
633                 return;
634         runtime = evoice->epcm->substream->runtime;
635         voice = evoice->number;
636         stereo = (!extra && runtime->channels == 2);
637         sample = snd_pcm_format_width(runtime->format) == 16 ? 0 : 0x80808080;
638         ccis = emu10k1_ccis(stereo, sample == 0);
639         // set cs to 2 * number of cache registers beside the invalidated
640         cs = (sample == 0) ? (32-ccis) : (64-ccis+1) >> 1;
641         if (cs > 16) cs = 16;
642         for (i = 0; i < cs; i++) {
643                 snd_emu10k1_ptr_write(emu, CD0 + i, voice, sample);
644                 if (stereo) {
645                         snd_emu10k1_ptr_write(emu, CD0 + i, voice + 1, sample);
646                 }
647         }
648         // reset cache
649         snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, 0);
650         snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice, cra);
651         if (stereo) {
652                 snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice + 1, 0);
653                 snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice + 1, cra);
654         }
655         // fill cache
656         snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, ccis);
657         if (stereo) {
658                 snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice+1, ccis);
659         }
660 }
661
662 static void snd_emu10k1_playback_prepare_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice,
663                                                int master, int extra,
664                                                struct snd_emu10k1_pcm_mixer *mix)
665 {
666         struct snd_pcm_substream *substream;
667         struct snd_pcm_runtime *runtime;
668         unsigned int attn, vattn;
669         unsigned int voice, tmp;
670
671         if (evoice == NULL)     /* skip second voice for mono */
672                 return;
673         substream = evoice->epcm->substream;
674         runtime = substream->runtime;
675         voice = evoice->number;
676
677         attn = extra ? 0 : 0x00ff;
678         tmp = runtime->channels == 2 ? (master ? 1 : 2) : 0;
679         vattn = mix != NULL ? (mix->attn[tmp] << 16) : 0;
680         snd_emu10k1_ptr_write(emu, IFATN, voice, attn);
681         snd_emu10k1_ptr_write(emu, VTFT, voice, vattn | 0xffff);
682         snd_emu10k1_ptr_write(emu, CVCF, voice, vattn | 0xffff);
683         snd_emu10k1_ptr_write(emu, DCYSUSV, voice, 0x7f7f);
684         snd_emu10k1_voice_clear_loop_stop(emu, voice);
685 }       
686
687 static void snd_emu10k1_playback_trigger_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice, int master, int extra)
688 {
689         struct snd_pcm_substream *substream;
690         struct snd_pcm_runtime *runtime;
691         unsigned int voice, pitch, pitch_target;
692
693         if (evoice == NULL)     /* skip second voice for mono */
694                 return;
695         substream = evoice->epcm->substream;
696         runtime = substream->runtime;
697         voice = evoice->number;
698
699         pitch = snd_emu10k1_rate_to_pitch(runtime->rate) >> 8;
700         pitch_target = emu10k1_calc_pitch_target(runtime->rate);
701         snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, pitch_target);
702         if (master || evoice->epcm->type == PLAYBACK_EFX)
703                 snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, pitch_target);
704         snd_emu10k1_ptr_write(emu, IP, voice, pitch);
705         if (extra)
706                 snd_emu10k1_voice_intr_enable(emu, voice);
707 }
708
709 static void snd_emu10k1_playback_stop_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice)
710 {
711         unsigned int voice;
712
713         if (evoice == NULL)
714                 return;
715         voice = evoice->number;
716         snd_emu10k1_voice_intr_disable(emu, voice);
717         snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, 0);
718         snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, 0);
719         snd_emu10k1_ptr_write(emu, IFATN, voice, 0xffff);
720         snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
721         snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
722         snd_emu10k1_ptr_write(emu, IP, voice, 0);
723 }
724
725 static int snd_emu10k1_playback_trigger(struct snd_pcm_substream *substream,
726                                         int cmd)
727 {
728         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
729         struct snd_pcm_runtime *runtime = substream->runtime;
730         struct snd_emu10k1_pcm *epcm = runtime->private_data;
731         struct snd_emu10k1_pcm_mixer *mix;
732         int result = 0;
733
734         // printk("trigger - emu10k1 = 0x%x, cmd = %i, pointer = %i\n", (int)emu, cmd, substream->ops->pointer(substream));
735         spin_lock(&emu->reg_lock);
736         switch (cmd) {
737         case SNDRV_PCM_TRIGGER_START:
738                 snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra);     /* do we need this? */
739                 snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[0]);
740                 /* follow thru */
741         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
742                 mix = &emu->pcm_mixer[substream->number];
743                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 1, 0, mix);
744                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[1], 0, 0, mix);
745                 snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
746                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 1, 0);
747                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[1], 0, 0);
748                 snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
749                 epcm->running = 1;
750                 break;
751         case SNDRV_PCM_TRIGGER_STOP:
752         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
753                 epcm->running = 0;
754                 snd_emu10k1_playback_stop_voice(emu, epcm->voices[0]);
755                 snd_emu10k1_playback_stop_voice(emu, epcm->voices[1]);
756                 snd_emu10k1_playback_stop_voice(emu, epcm->extra);
757                 break;
758         default:
759                 result = -EINVAL;
760                 break;
761         }
762         spin_unlock(&emu->reg_lock);
763         return result;
764 }
765
766 static int snd_emu10k1_capture_trigger(struct snd_pcm_substream *substream,
767                                        int cmd)
768 {
769         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
770         struct snd_pcm_runtime *runtime = substream->runtime;
771         struct snd_emu10k1_pcm *epcm = runtime->private_data;
772         int result = 0;
773
774         spin_lock(&emu->reg_lock);
775         switch (cmd) {
776         case SNDRV_PCM_TRIGGER_START:
777                 // hmm this should cause full and half full interrupt to be raised?  
778                 outl(epcm->capture_ipr, emu->port + IPR);
779                 snd_emu10k1_intr_enable(emu, epcm->capture_inte);
780                 // printk("adccr = 0x%x, adcbs = 0x%x\n", epcm->adccr, epcm->adcbs);
781                 switch (epcm->type) {
782                 case CAPTURE_AC97ADC:
783                         snd_emu10k1_ptr_write(emu, ADCCR, 0, epcm->capture_cr_val);
784                         break;
785                 case CAPTURE_EFX:
786                         if (emu->audigy) {
787                                 snd_emu10k1_ptr_write(emu, A_FXWC1, 0, epcm->capture_cr_val);
788                                 snd_emu10k1_ptr_write(emu, A_FXWC2, 0, epcm->capture_cr_val2);
789                         } else
790                                 snd_emu10k1_ptr_write(emu, FXWC, 0, epcm->capture_cr_val);
791                         break;
792                 default:        
793                         break;
794                 }
795                 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, epcm->capture_bs_val);
796                 epcm->running = 1;
797                 epcm->first_ptr = 1;
798                 break;
799         case SNDRV_PCM_TRIGGER_STOP:
800                 epcm->running = 0;
801                 snd_emu10k1_intr_disable(emu, epcm->capture_inte);
802                 outl(epcm->capture_ipr, emu->port + IPR);
803                 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
804                 switch (epcm->type) {
805                 case CAPTURE_AC97ADC:
806                         snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
807                         break;
808                 case CAPTURE_EFX:
809                         if (emu->audigy) {
810                                 snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
811                                 snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
812                         } else
813                                 snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
814                         break;
815                 default:
816                         break;
817                 }
818                 break;
819         default:
820                 result = -EINVAL;
821         }
822         spin_unlock(&emu->reg_lock);
823         return result;
824 }
825
826 static snd_pcm_uframes_t snd_emu10k1_playback_pointer(struct snd_pcm_substream *substream)
827 {
828         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
829         struct snd_pcm_runtime *runtime = substream->runtime;
830         struct snd_emu10k1_pcm *epcm = runtime->private_data;
831         unsigned int ptr;
832
833         if (!epcm->running)
834                 return 0;
835         ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff;
836 #if 0   /* Perex's code */
837         ptr += runtime->buffer_size;
838         ptr -= epcm->ccca_start_addr;
839         ptr %= runtime->buffer_size;
840 #else   /* EMU10K1 Open Source code from Creative */
841         if (ptr < epcm->ccca_start_addr)
842                 ptr += runtime->buffer_size - epcm->ccca_start_addr;
843         else {
844                 ptr -= epcm->ccca_start_addr;
845                 if (ptr >= runtime->buffer_size)
846                         ptr -= runtime->buffer_size;
847         }
848 #endif
849         // printk("ptr = 0x%x, buffer_size = 0x%x, period_size = 0x%x\n", ptr, runtime->buffer_size, runtime->period_size);
850         return ptr;
851 }
852
853
854 static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream,
855                                         int cmd)
856 {
857         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
858         struct snd_pcm_runtime *runtime = substream->runtime;
859         struct snd_emu10k1_pcm *epcm = runtime->private_data;
860         int i;
861         int result = 0;
862
863         spin_lock(&emu->reg_lock);
864         switch (cmd) {
865         case SNDRV_PCM_TRIGGER_START:
866                 // prepare voices
867                 for (i = 0; i < NUM_EFX_PLAYBACK; i++) {        
868                         snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[i]);
869                 }
870                 snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra);
871
872                 /* follow thru */
873         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
874                 snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
875                 snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 0, 0,
876                                                    &emu->efx_pcm_mixer[0]);
877                 for (i = 1; i < NUM_EFX_PLAYBACK; i++)
878                         snd_emu10k1_playback_prepare_voice(emu, epcm->voices[i], 0, 0,
879                                                            &emu->efx_pcm_mixer[i]);
880                 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 0, 0);
881                 snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
882                 for (i = 1; i < NUM_EFX_PLAYBACK; i++)
883                         snd_emu10k1_playback_trigger_voice(emu, epcm->voices[i], 0, 0);
884                 epcm->running = 1;
885                 break;
886         case SNDRV_PCM_TRIGGER_STOP:
887         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
888                 epcm->running = 0;
889                 for (i = 0; i < NUM_EFX_PLAYBACK; i++) {        
890                         snd_emu10k1_playback_stop_voice(emu, epcm->voices[i]);
891                 }
892                 snd_emu10k1_playback_stop_voice(emu, epcm->extra);
893                 break;
894         default:
895                 result = -EINVAL;
896                 break;
897         }
898         spin_unlock(&emu->reg_lock);
899         return result;
900 }
901
902
903 static snd_pcm_uframes_t snd_emu10k1_capture_pointer(struct snd_pcm_substream *substream)
904 {
905         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
906         struct snd_pcm_runtime *runtime = substream->runtime;
907         struct snd_emu10k1_pcm *epcm = runtime->private_data;
908         unsigned int ptr;
909
910         if (!epcm->running)
911                 return 0;
912         if (epcm->first_ptr) {
913                 udelay(50);     // hack, it takes awhile until capture is started
914                 epcm->first_ptr = 0;
915         }
916         ptr = snd_emu10k1_ptr_read(emu, epcm->capture_idx_reg, 0) & 0x0000ffff;
917         return bytes_to_frames(runtime, ptr);
918 }
919
920 /*
921  *  Playback support device description
922  */
923
924 static struct snd_pcm_hardware snd_emu10k1_playback =
925 {
926         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
927                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
928                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
929         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
930         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_96000,
931         .rate_min =             4000,
932         .rate_max =             96000,
933         .channels_min =         1,
934         .channels_max =         2,
935         .buffer_bytes_max =     (128*1024),
936         .period_bytes_min =     64,
937         .period_bytes_max =     (128*1024),
938         .periods_min =          1,
939         .periods_max =          1024,
940         .fifo_size =            0,
941 };
942
943 /*
944  *  Capture support device description
945  */
946
947 static struct snd_pcm_hardware snd_emu10k1_capture =
948 {
949         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
950                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
951                                  SNDRV_PCM_INFO_MMAP_VALID),
952         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
953         .rates =                SNDRV_PCM_RATE_8000_48000,
954         .rate_min =             8000,
955         .rate_max =             48000,
956         .channels_min =         1,
957         .channels_max =         2,
958         .buffer_bytes_max =     (64*1024),
959         .period_bytes_min =     384,
960         .period_bytes_max =     (64*1024),
961         .periods_min =          2,
962         .periods_max =          2,
963         .fifo_size =            0,
964 };
965
966 /*
967  *
968  */
969
970 static void snd_emu10k1_pcm_mixer_notify1(struct snd_emu10k1 *emu, struct snd_kcontrol *kctl, int idx, int activate)
971 {
972         struct snd_ctl_elem_id id;
973
974         if (! kctl)
975                 return;
976         if (activate)
977                 kctl->vd[idx].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
978         else
979                 kctl->vd[idx].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
980         snd_ctl_notify(emu->card, SNDRV_CTL_EVENT_MASK_VALUE |
981                        SNDRV_CTL_EVENT_MASK_INFO,
982                        snd_ctl_build_ioff(&id, kctl, idx));
983 }
984
985 static void snd_emu10k1_pcm_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
986 {
987         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_routing, idx, activate);
988         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_volume, idx, activate);
989         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_attn, idx, activate);
990 }
991
992 static void snd_emu10k1_pcm_efx_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
993 {
994         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_routing, idx, activate);
995         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_volume, idx, activate);
996         snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_attn, idx, activate);
997 }
998
999 static void snd_emu10k1_pcm_free_substream(struct snd_pcm_runtime *runtime)
1000 {
1001         kfree(runtime->private_data);
1002 }
1003
1004 static int snd_emu10k1_efx_playback_close(struct snd_pcm_substream *substream)
1005 {
1006         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1007         struct snd_emu10k1_pcm_mixer *mix;
1008         int i;
1009
1010         for (i=0; i < NUM_EFX_PLAYBACK; i++) {
1011                 mix = &emu->efx_pcm_mixer[i];
1012                 mix->epcm = NULL;
1013                 snd_emu10k1_pcm_efx_mixer_notify(emu, i, 0);
1014         }
1015         return 0;
1016 }
1017
1018 static int snd_emu10k1_efx_playback_open(struct snd_pcm_substream *substream)
1019 {
1020         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1021         struct snd_emu10k1_pcm *epcm;
1022         struct snd_emu10k1_pcm_mixer *mix;
1023         struct snd_pcm_runtime *runtime = substream->runtime;
1024         int i;
1025
1026         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1027         if (epcm == NULL)
1028                 return -ENOMEM;
1029         epcm->emu = emu;
1030         epcm->type = PLAYBACK_EFX;
1031         epcm->substream = substream;
1032         
1033         emu->pcm_playback_efx_substream = substream;
1034
1035         runtime->private_data = epcm;
1036         runtime->private_free = snd_emu10k1_pcm_free_substream;
1037         runtime->hw = snd_emu10k1_efx_playback;
1038         
1039         for (i=0; i < NUM_EFX_PLAYBACK; i++) {
1040                 mix = &emu->efx_pcm_mixer[i];
1041                 mix->send_routing[0][0] = i;
1042                 memset(&mix->send_volume, 0, sizeof(mix->send_volume));
1043                 mix->send_volume[0][0] = 255;
1044                 mix->attn[0] = 0xffff;
1045                 mix->epcm = epcm;
1046                 snd_emu10k1_pcm_efx_mixer_notify(emu, i, 1);
1047         }
1048         return 0;
1049 }
1050
1051 static int snd_emu10k1_playback_open(struct snd_pcm_substream *substream)
1052 {
1053         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1054         struct snd_emu10k1_pcm *epcm;
1055         struct snd_emu10k1_pcm_mixer *mix;
1056         struct snd_pcm_runtime *runtime = substream->runtime;
1057         int i, err;
1058
1059         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1060         if (epcm == NULL)
1061                 return -ENOMEM;
1062         epcm->emu = emu;
1063         epcm->type = PLAYBACK_EMUVOICE;
1064         epcm->substream = substream;
1065         runtime->private_data = epcm;
1066         runtime->private_free = snd_emu10k1_pcm_free_substream;
1067         runtime->hw = snd_emu10k1_playback;
1068         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
1069                 kfree(epcm);
1070                 return err;
1071         }
1072         if ((err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX)) < 0) {
1073                 kfree(epcm);
1074                 return err;
1075         }
1076         mix = &emu->pcm_mixer[substream->number];
1077         for (i = 0; i < 4; i++)
1078                 mix->send_routing[0][i] = mix->send_routing[1][i] = mix->send_routing[2][i] = i;
1079         memset(&mix->send_volume, 0, sizeof(mix->send_volume));
1080         mix->send_volume[0][0] = mix->send_volume[0][1] =
1081         mix->send_volume[1][0] = mix->send_volume[2][1] = 255;
1082         mix->attn[0] = mix->attn[1] = mix->attn[2] = 0xffff;
1083         mix->epcm = epcm;
1084         snd_emu10k1_pcm_mixer_notify(emu, substream->number, 1);
1085         return 0;
1086 }
1087
1088 static int snd_emu10k1_playback_close(struct snd_pcm_substream *substream)
1089 {
1090         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1091         struct snd_emu10k1_pcm_mixer *mix = &emu->pcm_mixer[substream->number];
1092
1093         mix->epcm = NULL;
1094         snd_emu10k1_pcm_mixer_notify(emu, substream->number, 0);
1095         return 0;
1096 }
1097
1098 static int snd_emu10k1_capture_open(struct snd_pcm_substream *substream)
1099 {
1100         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1101         struct snd_pcm_runtime *runtime = substream->runtime;
1102         struct snd_emu10k1_pcm *epcm;
1103
1104         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1105         if (epcm == NULL)
1106                 return -ENOMEM;
1107         epcm->emu = emu;
1108         epcm->type = CAPTURE_AC97ADC;
1109         epcm->substream = substream;
1110         epcm->capture_ipr = IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL;
1111         epcm->capture_inte = INTE_ADCBUFENABLE;
1112         epcm->capture_ba_reg = ADCBA;
1113         epcm->capture_bs_reg = ADCBS;
1114         epcm->capture_idx_reg = emu->audigy ? A_ADCIDX : ADCIDX;
1115         runtime->private_data = epcm;
1116         runtime->private_free = snd_emu10k1_pcm_free_substream;
1117         runtime->hw = snd_emu10k1_capture;
1118         emu->capture_interrupt = snd_emu10k1_pcm_ac97adc_interrupt;
1119         emu->pcm_capture_substream = substream;
1120         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1121         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_capture_rates);
1122         return 0;
1123 }
1124
1125 static int snd_emu10k1_capture_close(struct snd_pcm_substream *substream)
1126 {
1127         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1128
1129         emu->capture_interrupt = NULL;
1130         emu->pcm_capture_substream = NULL;
1131         return 0;
1132 }
1133
1134 static int snd_emu10k1_capture_mic_open(struct snd_pcm_substream *substream)
1135 {
1136         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1137         struct snd_emu10k1_pcm *epcm;
1138         struct snd_pcm_runtime *runtime = substream->runtime;
1139
1140         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1141         if (epcm == NULL)
1142                 return -ENOMEM;
1143         epcm->emu = emu;
1144         epcm->type = CAPTURE_AC97MIC;
1145         epcm->substream = substream;
1146         epcm->capture_ipr = IPR_MICBUFFULL|IPR_MICBUFHALFFULL;
1147         epcm->capture_inte = INTE_MICBUFENABLE;
1148         epcm->capture_ba_reg = MICBA;
1149         epcm->capture_bs_reg = MICBS;
1150         epcm->capture_idx_reg = emu->audigy ? A_MICIDX : MICIDX;
1151         substream->runtime->private_data = epcm;
1152         substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1153         runtime->hw = snd_emu10k1_capture;
1154         runtime->hw.rates = SNDRV_PCM_RATE_8000;
1155         runtime->hw.rate_min = runtime->hw.rate_max = 8000;
1156         runtime->hw.channels_min = 1;
1157         emu->capture_mic_interrupt = snd_emu10k1_pcm_ac97mic_interrupt;
1158         emu->pcm_capture_mic_substream = substream;
1159         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1160         return 0;
1161 }
1162
1163 static int snd_emu10k1_capture_mic_close(struct snd_pcm_substream *substream)
1164 {
1165         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1166
1167         emu->capture_interrupt = NULL;
1168         emu->pcm_capture_mic_substream = NULL;
1169         return 0;
1170 }
1171
1172 static int snd_emu10k1_capture_efx_open(struct snd_pcm_substream *substream)
1173 {
1174         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1175         struct snd_emu10k1_pcm *epcm;
1176         struct snd_pcm_runtime *runtime = substream->runtime;
1177         int nefx = emu->audigy ? 64 : 32;
1178         int idx;
1179
1180         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1181         if (epcm == NULL)
1182                 return -ENOMEM;
1183         epcm->emu = emu;
1184         epcm->type = CAPTURE_EFX;
1185         epcm->substream = substream;
1186         epcm->capture_ipr = IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL;
1187         epcm->capture_inte = INTE_EFXBUFENABLE;
1188         epcm->capture_ba_reg = FXBA;
1189         epcm->capture_bs_reg = FXBS;
1190         epcm->capture_idx_reg = FXIDX;
1191         substream->runtime->private_data = epcm;
1192         substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1193         runtime->hw = snd_emu10k1_capture;
1194         runtime->hw.rates = SNDRV_PCM_RATE_48000;
1195         runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1196         spin_lock_irq(&emu->reg_lock);
1197         runtime->hw.channels_min = runtime->hw.channels_max = 0;
1198         for (idx = 0; idx < nefx; idx++) {
1199                 if (emu->efx_voices_mask[idx/32] & (1 << (idx%32))) {
1200                         runtime->hw.channels_min++;
1201                         runtime->hw.channels_max++;
1202                 }
1203         }
1204         epcm->capture_cr_val = emu->efx_voices_mask[0];
1205         epcm->capture_cr_val2 = emu->efx_voices_mask[1];
1206         spin_unlock_irq(&emu->reg_lock);
1207         emu->capture_efx_interrupt = snd_emu10k1_pcm_efx_interrupt;
1208         emu->pcm_capture_efx_substream = substream;
1209         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1210         return 0;
1211 }
1212
1213 static int snd_emu10k1_capture_efx_close(struct snd_pcm_substream *substream)
1214 {
1215         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1216
1217         emu->capture_interrupt = NULL;
1218         emu->pcm_capture_efx_substream = NULL;
1219         return 0;
1220 }
1221
1222 static struct snd_pcm_ops snd_emu10k1_playback_ops = {
1223         .open =                 snd_emu10k1_playback_open,
1224         .close =                snd_emu10k1_playback_close,
1225         .ioctl =                snd_pcm_lib_ioctl,
1226         .hw_params =            snd_emu10k1_playback_hw_params,
1227         .hw_free =              snd_emu10k1_playback_hw_free,
1228         .prepare =              snd_emu10k1_playback_prepare,
1229         .trigger =              snd_emu10k1_playback_trigger,
1230         .pointer =              snd_emu10k1_playback_pointer,
1231         .page =                 snd_pcm_sgbuf_ops_page,
1232 };
1233
1234 static struct snd_pcm_ops snd_emu10k1_capture_ops = {
1235         .open =                 snd_emu10k1_capture_open,
1236         .close =                snd_emu10k1_capture_close,
1237         .ioctl =                snd_pcm_lib_ioctl,
1238         .hw_params =            snd_emu10k1_capture_hw_params,
1239         .hw_free =              snd_emu10k1_capture_hw_free,
1240         .prepare =              snd_emu10k1_capture_prepare,
1241         .trigger =              snd_emu10k1_capture_trigger,
1242         .pointer =              snd_emu10k1_capture_pointer,
1243 };
1244
1245 /* EFX playback */
1246 static struct snd_pcm_ops snd_emu10k1_efx_playback_ops = {
1247         .open =                 snd_emu10k1_efx_playback_open,
1248         .close =                snd_emu10k1_efx_playback_close,
1249         .ioctl =                snd_pcm_lib_ioctl,
1250         .hw_params =            snd_emu10k1_playback_hw_params,
1251         .hw_free =              snd_emu10k1_efx_playback_hw_free,
1252         .prepare =              snd_emu10k1_efx_playback_prepare,
1253         .trigger =              snd_emu10k1_efx_playback_trigger,
1254         .pointer =              snd_emu10k1_efx_playback_pointer,
1255         .page =                 snd_pcm_sgbuf_ops_page,
1256 };
1257
1258 int __devinit snd_emu10k1_pcm(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1259 {
1260         struct snd_pcm *pcm;
1261         struct snd_pcm_substream *substream;
1262         int err;
1263
1264         if (rpcm)
1265                 *rpcm = NULL;
1266
1267         if ((err = snd_pcm_new(emu->card, "emu10k1", device, 32, 1, &pcm)) < 0)
1268                 return err;
1269
1270         pcm->private_data = emu;
1271
1272         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_playback_ops);
1273         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_ops);
1274
1275         pcm->info_flags = 0;
1276         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1277         strcpy(pcm->name, "ADC Capture/Standard PCM Playback");
1278         emu->pcm = pcm;
1279
1280         for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1281                 if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
1282                         return err;
1283
1284         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substream->next)
1285                 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1286
1287         if (rpcm)
1288                 *rpcm = pcm;
1289
1290         return 0;
1291 }
1292
1293 int __devinit snd_emu10k1_pcm_multi(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1294 {
1295         struct snd_pcm *pcm;
1296         struct snd_pcm_substream *substream;
1297         int err;
1298
1299         if (rpcm)
1300                 *rpcm = NULL;
1301
1302         if ((err = snd_pcm_new(emu->card, "emu10k1", device, 1, 0, &pcm)) < 0)
1303                 return err;
1304
1305         pcm->private_data = emu;
1306
1307         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_efx_playback_ops);
1308
1309         pcm->info_flags = 0;
1310         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1311         strcpy(pcm->name, "Multichannel Playback");
1312         emu->pcm = pcm;
1313
1314         for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1315                 if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
1316                         return err;
1317
1318         if (rpcm)
1319                 *rpcm = pcm;
1320
1321         return 0;
1322 }
1323
1324
1325 static struct snd_pcm_ops snd_emu10k1_capture_mic_ops = {
1326         .open =                 snd_emu10k1_capture_mic_open,
1327         .close =                snd_emu10k1_capture_mic_close,
1328         .ioctl =                snd_pcm_lib_ioctl,
1329         .hw_params =            snd_emu10k1_capture_hw_params,
1330         .hw_free =              snd_emu10k1_capture_hw_free,
1331         .prepare =              snd_emu10k1_capture_prepare,
1332         .trigger =              snd_emu10k1_capture_trigger,
1333         .pointer =              snd_emu10k1_capture_pointer,
1334 };
1335
1336 int __devinit snd_emu10k1_pcm_mic(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1337 {
1338         struct snd_pcm *pcm;
1339         int err;
1340
1341         if (rpcm)
1342                 *rpcm = NULL;
1343
1344         if ((err = snd_pcm_new(emu->card, "emu10k1 mic", device, 0, 1, &pcm)) < 0)
1345                 return err;
1346
1347         pcm->private_data = emu;
1348
1349         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_mic_ops);
1350
1351         pcm->info_flags = 0;
1352         strcpy(pcm->name, "Mic Capture");
1353         emu->pcm_mic = pcm;
1354
1355         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1356
1357         if (rpcm)
1358                 *rpcm = pcm;
1359         return 0;
1360 }
1361
1362 static int snd_emu10k1_pcm_efx_voices_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1363 {
1364         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1365         int nefx = emu->audigy ? 64 : 32;
1366         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1367         uinfo->count = nefx;
1368         uinfo->value.integer.min = 0;
1369         uinfo->value.integer.max = 1;
1370         return 0;
1371 }
1372
1373 static int snd_emu10k1_pcm_efx_voices_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1374 {
1375         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1376         int nefx = emu->audigy ? 64 : 32;
1377         int idx;
1378         
1379         spin_lock_irq(&emu->reg_lock);
1380         for (idx = 0; idx < nefx; idx++)
1381                 ucontrol->value.integer.value[idx] = (emu->efx_voices_mask[idx / 32] & (1 << (idx % 32))) ? 1 : 0;
1382         spin_unlock_irq(&emu->reg_lock);
1383         return 0;
1384 }
1385
1386 static int snd_emu10k1_pcm_efx_voices_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1387 {
1388         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1389         unsigned int nval[2], bits;
1390         int nefx = emu->audigy ? 64 : 32;
1391         int nefxb = emu->audigy ? 7 : 6;
1392         int change, idx;
1393         
1394         nval[0] = nval[1] = 0;
1395         for (idx = 0, bits = 0; idx < nefx; idx++)
1396                 if (ucontrol->value.integer.value[idx]) {
1397                         nval[idx / 32] |= 1 << (idx % 32);
1398                         bits++;
1399                 }
1400                 
1401         for (idx = 0; idx < nefxb; idx++)
1402                 if (1 << idx == bits)
1403                         break;
1404         
1405         if (idx >= nefxb)
1406                 return -EINVAL;
1407
1408         spin_lock_irq(&emu->reg_lock);
1409         change = (nval[0] != emu->efx_voices_mask[0]) ||
1410                 (nval[1] != emu->efx_voices_mask[1]);
1411         emu->efx_voices_mask[0] = nval[0];
1412         emu->efx_voices_mask[1] = nval[1];
1413         spin_unlock_irq(&emu->reg_lock);
1414         return change;
1415 }
1416
1417 static struct snd_kcontrol_new snd_emu10k1_pcm_efx_voices_mask = {
1418         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1419         .name = "Captured FX8010 Outputs",
1420         .info = snd_emu10k1_pcm_efx_voices_mask_info,
1421         .get = snd_emu10k1_pcm_efx_voices_mask_get,
1422         .put = snd_emu10k1_pcm_efx_voices_mask_put
1423 };
1424
1425 static struct snd_pcm_ops snd_emu10k1_capture_efx_ops = {
1426         .open =                 snd_emu10k1_capture_efx_open,
1427         .close =                snd_emu10k1_capture_efx_close,
1428         .ioctl =                snd_pcm_lib_ioctl,
1429         .hw_params =            snd_emu10k1_capture_hw_params,
1430         .hw_free =              snd_emu10k1_capture_hw_free,
1431         .prepare =              snd_emu10k1_capture_prepare,
1432         .trigger =              snd_emu10k1_capture_trigger,
1433         .pointer =              snd_emu10k1_capture_pointer,
1434 };
1435
1436
1437 /* EFX playback */
1438
1439 #define INITIAL_TRAM_SHIFT     14
1440 #define INITIAL_TRAM_POS(size) ((((size) / 2) - INITIAL_TRAM_SHIFT) - 1)
1441
1442 static void snd_emu10k1_fx8010_playback_irq(struct snd_emu10k1 *emu, void *private_data)
1443 {
1444         struct snd_pcm_substream *substream = private_data;
1445         snd_pcm_period_elapsed(substream);
1446 }
1447
1448 static void snd_emu10k1_fx8010_playback_tram_poke1(unsigned short *dst_left,
1449                                                    unsigned short *dst_right,
1450                                                    unsigned short *src,
1451                                                    unsigned int count,
1452                                                    unsigned int tram_shift)
1453 {
1454         // printk("tram_poke1: dst_left = 0x%p, dst_right = 0x%p, src = 0x%p, count = 0x%x\n", dst_left, dst_right, src, count);
1455         if ((tram_shift & 1) == 0) {
1456                 while (count--) {
1457                         *dst_left-- = *src++;
1458                         *dst_right-- = *src++;
1459                 }
1460         } else {
1461                 while (count--) {
1462                         *dst_right-- = *src++;
1463                         *dst_left-- = *src++;
1464                 }
1465         }
1466 }
1467
1468 static void fx8010_pb_trans_copy(struct snd_pcm_substream *substream,
1469                                  struct snd_pcm_indirect *rec, size_t bytes)
1470 {
1471         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1472         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1473         unsigned int tram_size = pcm->buffer_size;
1474         unsigned short *src = (unsigned short *)(substream->runtime->dma_area + rec->sw_data);
1475         unsigned int frames = bytes >> 2, count;
1476         unsigned int tram_pos = pcm->tram_pos;
1477         unsigned int tram_shift = pcm->tram_shift;
1478
1479         while (frames > tram_pos) {
1480                 count = tram_pos + 1;
1481                 snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1482                                                        (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1483                                                        src, count, tram_shift);
1484                 src += count * 2;
1485                 frames -= count;
1486                 tram_pos = (tram_size / 2) - 1;
1487                 tram_shift++;
1488         }
1489         snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1490                                                (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1491                                                src, frames, tram_shift);
1492         tram_pos -= frames;
1493         pcm->tram_pos = tram_pos;
1494         pcm->tram_shift = tram_shift;
1495 }
1496
1497 static int snd_emu10k1_fx8010_playback_transfer(struct snd_pcm_substream *substream)
1498 {
1499         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1500         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1501
1502         snd_pcm_indirect_playback_transfer(substream, &pcm->pcm_rec, fx8010_pb_trans_copy);
1503         return 0;
1504 }
1505
1506 static int snd_emu10k1_fx8010_playback_hw_params(struct snd_pcm_substream *substream,
1507                                                  struct snd_pcm_hw_params *hw_params)
1508 {
1509         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1510 }
1511
1512 static int snd_emu10k1_fx8010_playback_hw_free(struct snd_pcm_substream *substream)
1513 {
1514         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1515         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1516         unsigned int i;
1517
1518         for (i = 0; i < pcm->channels; i++)
1519                 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, 0);
1520         snd_pcm_lib_free_pages(substream);
1521         return 0;
1522 }
1523
1524 static int snd_emu10k1_fx8010_playback_prepare(struct snd_pcm_substream *substream)
1525 {
1526         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1527         struct snd_pcm_runtime *runtime = substream->runtime;
1528         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1529         unsigned int i;
1530         
1531         // printk("prepare: etram_pages = 0x%p, dma_area = 0x%x, buffer_size = 0x%x (0x%x)\n", emu->fx8010.etram_pages, runtime->dma_area, runtime->buffer_size, runtime->buffer_size << 2);
1532         memset(&pcm->pcm_rec, 0, sizeof(pcm->pcm_rec));
1533         pcm->pcm_rec.hw_buffer_size = pcm->buffer_size * 2; /* byte size */
1534         pcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1535         pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1536         pcm->tram_shift = 0;
1537         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_running, 0, 0);     /* reset */
1538         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);     /* reset */
1539         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_size, 0, runtime->buffer_size);
1540         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_ptr, 0, 0);         /* reset ptr number */
1541         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_count, 0, runtime->period_size);
1542         snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_tmpcount, 0, runtime->period_size);
1543         for (i = 0; i < pcm->channels; i++)
1544                 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, (TANKMEMADDRREG_READ|TANKMEMADDRREG_ALIGN) + i * (runtime->buffer_size / pcm->channels));
1545         return 0;
1546 }
1547
1548 static int snd_emu10k1_fx8010_playback_trigger(struct snd_pcm_substream *substream, int cmd)
1549 {
1550         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1551         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1552         int result = 0;
1553
1554         spin_lock(&emu->reg_lock);
1555         switch (cmd) {
1556         case SNDRV_PCM_TRIGGER_START:
1557                 /* follow thru */
1558         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1559 #ifdef EMU10K1_SET_AC3_IEC958
1560         {
1561                 int i;
1562                 for (i = 0; i < 3; i++) {
1563                         unsigned int bits;
1564                         bits = SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1565                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | SPCS_GENERATIONSTATUS |
1566                                0x00001200 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT | SPCS_NOTAUDIODATA;
1567                         snd_emu10k1_ptr_write(emu, SPCS0 + i, 0, bits);
1568                 }
1569         }
1570 #endif
1571                 result = snd_emu10k1_fx8010_register_irq_handler(emu, snd_emu10k1_fx8010_playback_irq, pcm->gpr_running, substream, &pcm->irq);
1572                 if (result < 0)
1573                         goto __err;
1574                 snd_emu10k1_fx8010_playback_transfer(substream);        /* roll the ball */
1575                 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 1);
1576                 break;
1577         case SNDRV_PCM_TRIGGER_STOP:
1578         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1579                 snd_emu10k1_fx8010_unregister_irq_handler(emu, pcm->irq); pcm->irq = NULL;
1580                 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);
1581                 pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1582                 pcm->tram_shift = 0;
1583                 break;
1584         default:
1585                 result = -EINVAL;
1586                 break;
1587         }
1588       __err:
1589         spin_unlock(&emu->reg_lock);
1590         return result;
1591 }
1592
1593 static snd_pcm_uframes_t snd_emu10k1_fx8010_playback_pointer(struct snd_pcm_substream *substream)
1594 {
1595         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1596         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1597         size_t ptr; /* byte pointer */
1598
1599         if (!snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_trigger, 0))
1600                 return 0;
1601         ptr = snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_ptr, 0) << 2;
1602         return snd_pcm_indirect_playback_pointer(substream, &pcm->pcm_rec, ptr);
1603 }
1604
1605 static struct snd_pcm_hardware snd_emu10k1_fx8010_playback =
1606 {
1607         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1608                                  /* SNDRV_PCM_INFO_MMAP_VALID | */ SNDRV_PCM_INFO_PAUSE),
1609         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1610         .rates =                SNDRV_PCM_RATE_48000,
1611         .rate_min =             48000,
1612         .rate_max =             48000,
1613         .channels_min =         1,
1614         .channels_max =         1,
1615         .buffer_bytes_max =     (128*1024),
1616         .period_bytes_min =     1024,
1617         .period_bytes_max =     (128*1024),
1618         .periods_min =          1,
1619         .periods_max =          1024,
1620         .fifo_size =            0,
1621 };
1622
1623 static int snd_emu10k1_fx8010_playback_open(struct snd_pcm_substream *substream)
1624 {
1625         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1626         struct snd_pcm_runtime *runtime = substream->runtime;
1627         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1628
1629         runtime->hw = snd_emu10k1_fx8010_playback;
1630         runtime->hw.channels_min = runtime->hw.channels_max = pcm->channels;
1631         runtime->hw.period_bytes_max = (pcm->buffer_size * 2) / 2;
1632         spin_lock_irq(&emu->reg_lock);
1633         if (pcm->valid == 0) {
1634                 spin_unlock_irq(&emu->reg_lock);
1635                 return -ENODEV;
1636         }
1637         pcm->opened = 1;
1638         spin_unlock_irq(&emu->reg_lock);
1639         return 0;
1640 }
1641
1642 static int snd_emu10k1_fx8010_playback_close(struct snd_pcm_substream *substream)
1643 {
1644         struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1645         struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1646
1647         spin_lock_irq(&emu->reg_lock);
1648         pcm->opened = 0;
1649         spin_unlock_irq(&emu->reg_lock);
1650         return 0;
1651 }
1652
1653 static struct snd_pcm_ops snd_emu10k1_fx8010_playback_ops = {
1654         .open =                 snd_emu10k1_fx8010_playback_open,
1655         .close =                snd_emu10k1_fx8010_playback_close,
1656         .ioctl =                snd_pcm_lib_ioctl,
1657         .hw_params =            snd_emu10k1_fx8010_playback_hw_params,
1658         .hw_free =              snd_emu10k1_fx8010_playback_hw_free,
1659         .prepare =              snd_emu10k1_fx8010_playback_prepare,
1660         .trigger =              snd_emu10k1_fx8010_playback_trigger,
1661         .pointer =              snd_emu10k1_fx8010_playback_pointer,
1662         .ack =                  snd_emu10k1_fx8010_playback_transfer,
1663 };
1664
1665 int __devinit snd_emu10k1_pcm_efx(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1666 {
1667         struct snd_pcm *pcm;
1668         struct snd_kcontrol *kctl;
1669         int err;
1670
1671         if (rpcm)
1672                 *rpcm = NULL;
1673
1674         if ((err = snd_pcm_new(emu->card, "emu10k1 efx", device, 8, 1, &pcm)) < 0)
1675                 return err;
1676
1677         pcm->private_data = emu;
1678
1679         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_fx8010_playback_ops);
1680         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_efx_ops);
1681
1682         pcm->info_flags = 0;
1683         strcpy(pcm->name, "Multichannel Capture/PT Playback");
1684         emu->pcm_efx = pcm;
1685         if (rpcm)
1686                 *rpcm = pcm;
1687
1688         /* EFX capture - record the "FXBUS2" channels, by default we connect the EXTINs 
1689          * to these
1690          */     
1691         
1692         /* emu->efx_voices_mask[0] = FXWC_DEFAULTROUTE_C | FXWC_DEFAULTROUTE_A; */
1693         if (emu->audigy) {
1694                 emu->efx_voices_mask[0] = 0;
1695                 emu->efx_voices_mask[1] = 0xffff;
1696         } else {
1697                 emu->efx_voices_mask[0] = 0xffff0000;
1698                 emu->efx_voices_mask[1] = 0;
1699         }
1700         kctl = snd_ctl_new1(&snd_emu10k1_pcm_efx_voices_mask, emu);
1701         if (!kctl)
1702                 return -ENOMEM;
1703         kctl->id.device = device;
1704         snd_ctl_add(emu->card, kctl);
1705
1706         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1707
1708         return 0;
1709 }