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emupcm.c
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1 /*
2  * Copyright (c) by Jaroslav Kysela <[email protected]>
3  * Creative Labs, Inc.
4  * Routines for control of EMU10K1 chips / PCM routines
5  * Multichannel PCM support Copyright (c) Lee Revell <[email protected]>
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  printk(KERN_DEBUG "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
48  epcm->substream->runtime->hw->pointer(emu, epcm->substream),
49  snd_pcm_lib_period_bytes(epcm->substream),
50  snd_pcm_lib_buffer_bytes(epcm->substream));
51 #endif
52  snd_pcm_period_elapsed(epcm->substream);
53 }
54 
55 static void snd_emu10k1_pcm_ac97adc_interrupt(struct snd_emu10k1 *emu,
56  unsigned int status)
57 {
58 #if 0
59  if (status & IPR_ADCBUFHALFFULL) {
60  if (emu->pcm_capture_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
61  return;
62  }
63 #endif
64  snd_pcm_period_elapsed(emu->pcm_capture_substream);
65 }
66 
67 static void snd_emu10k1_pcm_ac97mic_interrupt(struct snd_emu10k1 *emu,
68  unsigned int status)
69 {
70 #if 0
71  if (status & IPR_MICBUFHALFFULL) {
72  if (emu->pcm_capture_mic_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
73  return;
74  }
75 #endif
76  snd_pcm_period_elapsed(emu->pcm_capture_mic_substream);
77 }
78 
79 static void snd_emu10k1_pcm_efx_interrupt(struct snd_emu10k1 *emu,
80  unsigned int status)
81 {
82 #if 0
83  if (status & IPR_EFXBUFHALFFULL) {
84  if (emu->pcm_capture_efx_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
85  return;
86  }
87 #endif
88  snd_pcm_period_elapsed(emu->pcm_capture_efx_substream);
89 }
90 
91 static snd_pcm_uframes_t snd_emu10k1_efx_playback_pointer(struct snd_pcm_substream *substream)
92 {
93  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
94  struct snd_pcm_runtime *runtime = substream->runtime;
95  struct snd_emu10k1_pcm *epcm = runtime->private_data;
96  unsigned int ptr;
97 
98  if (!epcm->running)
99  return 0;
100  ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff;
101  ptr += runtime->buffer_size;
102  ptr -= epcm->ccca_start_addr;
103  ptr %= runtime->buffer_size;
104 
105  return ptr;
106 }
107 
108 static int snd_emu10k1_pcm_channel_alloc(struct snd_emu10k1_pcm * epcm, int voices)
109 {
110  int err, i;
111 
112  if (epcm->voices[1] != NULL && voices < 2) {
113  snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
114  epcm->voices[1] = NULL;
115  }
116  for (i = 0; i < voices; i++) {
117  if (epcm->voices[i] == NULL)
118  break;
119  }
120  if (i == voices)
121  return 0; /* already allocated */
122 
123  for (i = 0; i < ARRAY_SIZE(epcm->voices); i++) {
124  if (epcm->voices[i]) {
125  snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
126  epcm->voices[i] = NULL;
127  }
128  }
129  err = snd_emu10k1_voice_alloc(epcm->emu,
130  epcm->type == PLAYBACK_EMUVOICE ? EMU10K1_PCM : EMU10K1_EFX,
131  voices,
132  &epcm->voices[0]);
133 
134  if (err < 0)
135  return err;
136  epcm->voices[0]->epcm = epcm;
137  if (voices > 1) {
138  for (i = 1; i < voices; i++) {
139  epcm->voices[i] = &epcm->emu->voices[epcm->voices[0]->number + i];
140  epcm->voices[i]->epcm = epcm;
141  }
142  }
143  if (epcm->extra == NULL) {
144  err = snd_emu10k1_voice_alloc(epcm->emu,
145  epcm->type == PLAYBACK_EMUVOICE ? EMU10K1_PCM : EMU10K1_EFX,
146  1,
147  &epcm->extra);
148  if (err < 0) {
149  /*
150  printk(KERN_DEBUG "pcm_channel_alloc: "
151  "failed extra: voices=%d, frame=%d\n",
152  voices, frame);
153  */
154  for (i = 0; i < voices; i++) {
155  snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
156  epcm->voices[i] = NULL;
157  }
158  return err;
159  }
160  epcm->extra->epcm = epcm;
161  epcm->extra->interrupt = snd_emu10k1_pcm_interrupt;
162  }
163  return 0;
164 }
165 
166 static unsigned int capture_period_sizes[31] = {
167  384, 448, 512, 640,
168  384*2, 448*2, 512*2, 640*2,
169  384*4, 448*4, 512*4, 640*4,
170  384*8, 448*8, 512*8, 640*8,
171  384*16, 448*16, 512*16, 640*16,
172  384*32, 448*32, 512*32, 640*32,
173  384*64, 448*64, 512*64, 640*64,
174  384*128,448*128,512*128
175 };
176 
177 static struct snd_pcm_hw_constraint_list hw_constraints_capture_period_sizes = {
178  .count = 31,
179  .list = capture_period_sizes,
180  .mask = 0
181 };
182 
183 static unsigned int capture_rates[8] = {
184  8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000
185 };
186 
187 static struct snd_pcm_hw_constraint_list hw_constraints_capture_rates = {
188  .count = 8,
189  .list = capture_rates,
190  .mask = 0
191 };
192 
193 static unsigned int snd_emu10k1_capture_rate_reg(unsigned int rate)
194 {
195  switch (rate) {
196  case 8000: return ADCCR_SAMPLERATE_8;
197  case 11025: return ADCCR_SAMPLERATE_11;
198  case 16000: return ADCCR_SAMPLERATE_16;
199  case 22050: return ADCCR_SAMPLERATE_22;
200  case 24000: return ADCCR_SAMPLERATE_24;
201  case 32000: return ADCCR_SAMPLERATE_32;
202  case 44100: return ADCCR_SAMPLERATE_44;
203  case 48000: return ADCCR_SAMPLERATE_48;
204  default:
205  snd_BUG();
206  return ADCCR_SAMPLERATE_8;
207  }
208 }
209 
210 static unsigned int snd_emu10k1_audigy_capture_rate_reg(unsigned int rate)
211 {
212  switch (rate) {
213  case 8000: return A_ADCCR_SAMPLERATE_8;
214  case 11025: return A_ADCCR_SAMPLERATE_11;
215  case 12000: return A_ADCCR_SAMPLERATE_12; /* really supported? */
216  case 16000: return ADCCR_SAMPLERATE_16;
217  case 22050: return ADCCR_SAMPLERATE_22;
218  case 24000: return ADCCR_SAMPLERATE_24;
219  case 32000: return ADCCR_SAMPLERATE_32;
220  case 44100: return ADCCR_SAMPLERATE_44;
221  case 48000: return ADCCR_SAMPLERATE_48;
222  default:
223  snd_BUG();
224  return A_ADCCR_SAMPLERATE_8;
225  }
226 }
227 
228 static unsigned int emu10k1_calc_pitch_target(unsigned int rate)
229 {
230  unsigned int pitch_target;
231 
232  pitch_target = (rate << 8) / 375;
233  pitch_target = (pitch_target >> 1) + (pitch_target & 1);
234  return pitch_target;
235 }
236 
237 #define PITCH_48000 0x00004000
238 #define PITCH_96000 0x00008000
239 #define PITCH_85000 0x00007155
240 #define PITCH_80726 0x00006ba2
241 #define PITCH_67882 0x00005a82
242 #define PITCH_57081 0x00004c1c
243 
244 static unsigned int emu10k1_select_interprom(unsigned int pitch_target)
245 {
246  if (pitch_target == PITCH_48000)
247  return CCCA_INTERPROM_0;
248  else if (pitch_target < PITCH_48000)
249  return CCCA_INTERPROM_1;
250  else if (pitch_target >= PITCH_96000)
251  return CCCA_INTERPROM_0;
252  else if (pitch_target >= PITCH_85000)
253  return CCCA_INTERPROM_6;
254  else if (pitch_target >= PITCH_80726)
255  return CCCA_INTERPROM_5;
256  else if (pitch_target >= PITCH_67882)
257  return CCCA_INTERPROM_4;
258  else if (pitch_target >= PITCH_57081)
259  return CCCA_INTERPROM_3;
260  else
261  return CCCA_INTERPROM_2;
262 }
263 
264 /*
265  * calculate cache invalidate size
266  *
267  * stereo: channel is stereo
268  * w_16: using 16bit samples
269  *
270  * returns: cache invalidate size in samples
271  */
272 static inline int emu10k1_ccis(int stereo, int w_16)
273 {
274  if (w_16) {
275  return stereo ? 24 : 26;
276  } else {
277  return stereo ? 24*2 : 26*2;
278  }
279 }
280 
281 static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu,
282  int master, int extra,
283  struct snd_emu10k1_voice *evoice,
284  unsigned int start_addr,
285  unsigned int end_addr,
286  struct snd_emu10k1_pcm_mixer *mix)
287 {
288  struct snd_pcm_substream *substream = evoice->epcm->substream;
289  struct snd_pcm_runtime *runtime = substream->runtime;
290  unsigned int silent_page, tmp;
291  int voice, stereo, w_16;
292  unsigned char attn, send_amount[8];
293  unsigned char send_routing[8];
294  unsigned long flags;
295  unsigned int pitch_target;
296  unsigned int ccis;
297 
298  voice = evoice->number;
299  stereo = runtime->channels == 2;
300  w_16 = snd_pcm_format_width(runtime->format) == 16;
301 
302  if (!extra && stereo) {
303  start_addr >>= 1;
304  end_addr >>= 1;
305  }
306  if (w_16) {
307  start_addr >>= 1;
308  end_addr >>= 1;
309  }
310 
311  spin_lock_irqsave(&emu->reg_lock, flags);
312 
313  /* volume parameters */
314  if (extra) {
315  attn = 0;
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 << 1) | MAP_PTI_MASK;
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  int err;
414 
415  if ((err = snd_emu10k1_pcm_channel_alloc(epcm, params_channels(hw_params))) < 0)
416  return err;
417  if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
418  return err;
419  if (err > 0) { /* change */
420  int mapped;
421  if (epcm->memblk != NULL)
422  snd_emu10k1_free_pages(emu, epcm->memblk);
423  epcm->memblk = snd_emu10k1_alloc_pages(emu, substream);
424  epcm->start_addr = 0;
425  if (! epcm->memblk)
426  return -ENOMEM;
427  mapped = ((struct snd_emu10k1_memblk *)epcm->memblk)->mapped_page;
428  if (mapped < 0)
429  return -ENOMEM;
430  epcm->start_addr = mapped << PAGE_SHIFT;
431  }
432  return 0;
433 }
434 
435 static int snd_emu10k1_playback_hw_free(struct snd_pcm_substream *substream)
436 {
437  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
438  struct snd_pcm_runtime *runtime = substream->runtime;
439  struct snd_emu10k1_pcm *epcm;
440 
441  if (runtime->private_data == NULL)
442  return 0;
443  epcm = runtime->private_data;
444  if (epcm->extra) {
445  snd_emu10k1_voice_free(epcm->emu, epcm->extra);
446  epcm->extra = NULL;
447  }
448  if (epcm->voices[1]) {
449  snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
450  epcm->voices[1] = NULL;
451  }
452  if (epcm->voices[0]) {
453  snd_emu10k1_voice_free(epcm->emu, epcm->voices[0]);
454  epcm->voices[0] = NULL;
455  }
456  if (epcm->memblk) {
457  snd_emu10k1_free_pages(emu, epcm->memblk);
458  epcm->memblk = NULL;
459  epcm->start_addr = 0;
460  }
461  snd_pcm_lib_free_pages(substream);
462  return 0;
463 }
464 
465 static int snd_emu10k1_efx_playback_hw_free(struct snd_pcm_substream *substream)
466 {
467  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
468  struct snd_pcm_runtime *runtime = substream->runtime;
469  struct snd_emu10k1_pcm *epcm;
470  int i;
471 
472  if (runtime->private_data == NULL)
473  return 0;
474  epcm = runtime->private_data;
475  if (epcm->extra) {
476  snd_emu10k1_voice_free(epcm->emu, epcm->extra);
477  epcm->extra = NULL;
478  }
479  for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
480  if (epcm->voices[i]) {
481  snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
482  epcm->voices[i] = NULL;
483  }
484  }
485  if (epcm->memblk) {
486  snd_emu10k1_free_pages(emu, epcm->memblk);
487  epcm->memblk = NULL;
488  epcm->start_addr = 0;
489  }
490  snd_pcm_lib_free_pages(substream);
491  return 0;
492 }
493 
494 static int snd_emu10k1_playback_prepare(struct snd_pcm_substream *substream)
495 {
496  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
497  struct snd_pcm_runtime *runtime = substream->runtime;
498  struct snd_emu10k1_pcm *epcm = runtime->private_data;
499  unsigned int start_addr, end_addr;
500 
501  start_addr = epcm->start_addr;
502  end_addr = snd_pcm_lib_period_bytes(substream);
503  if (runtime->channels == 2) {
504  start_addr >>= 1;
505  end_addr >>= 1;
506  }
507  end_addr += start_addr;
508  snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
509  start_addr, end_addr, NULL);
510  start_addr = epcm->start_addr;
511  end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream);
512  snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
513  start_addr, end_addr,
514  &emu->pcm_mixer[substream->number]);
515  if (epcm->voices[1])
516  snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[1],
517  start_addr, end_addr,
518  &emu->pcm_mixer[substream->number]);
519  return 0;
520 }
521 
522 static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream)
523 {
524  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
525  struct snd_pcm_runtime *runtime = substream->runtime;
526  struct snd_emu10k1_pcm *epcm = runtime->private_data;
527  unsigned int start_addr, end_addr;
528  unsigned int channel_size;
529  int i;
530 
531  start_addr = epcm->start_addr;
532  end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream);
533 
534  /*
535  * the kX driver leaves some space between voices
536  */
537  channel_size = ( end_addr - start_addr ) / NUM_EFX_PLAYBACK;
538 
539  snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
540  start_addr, start_addr + (channel_size / 2), NULL);
541 
542  /* only difference with the master voice is we use it for the pointer */
543  snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
544  start_addr, start_addr + channel_size,
545  &emu->efx_pcm_mixer[0]);
546 
547  start_addr += channel_size;
548  for (i = 1; i < NUM_EFX_PLAYBACK; i++) {
549  snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[i],
550  start_addr, start_addr + channel_size,
551  &emu->efx_pcm_mixer[i]);
552  start_addr += channel_size;
553  }
554 
555  return 0;
556 }
557 
558 static struct snd_pcm_hardware snd_emu10k1_efx_playback =
559 {
560  .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_NONINTERLEAVED |
561  SNDRV_PCM_INFO_BLOCK_TRANSFER |
562  SNDRV_PCM_INFO_RESUME |
563  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
564  .formats = SNDRV_PCM_FMTBIT_S16_LE,
565  .rates = SNDRV_PCM_RATE_48000,
566  .rate_min = 48000,
567  .rate_max = 48000,
568  .channels_min = NUM_EFX_PLAYBACK,
569  .channels_max = NUM_EFX_PLAYBACK,
570  .buffer_bytes_max = (64*1024),
571  .period_bytes_min = 64,
572  .period_bytes_max = (64*1024),
573  .periods_min = 2,
574  .periods_max = 2,
575  .fifo_size = 0,
576 };
577 
578 static int snd_emu10k1_capture_hw_params(struct snd_pcm_substream *substream,
579  struct snd_pcm_hw_params *hw_params)
580 {
581  return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
582 }
583 
584 static int snd_emu10k1_capture_hw_free(struct snd_pcm_substream *substream)
585 {
586  return snd_pcm_lib_free_pages(substream);
587 }
588 
589 static int snd_emu10k1_capture_prepare(struct snd_pcm_substream *substream)
590 {
591  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
592  struct snd_pcm_runtime *runtime = substream->runtime;
593  struct snd_emu10k1_pcm *epcm = runtime->private_data;
594  int idx;
595 
596  /* zeroing the buffer size will stop capture */
597  snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
598  switch (epcm->type) {
599  case CAPTURE_AC97ADC:
600  snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
601  break;
602  case CAPTURE_EFX:
603  if (emu->audigy) {
604  snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
605  snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
606  } else
607  snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
608  break;
609  default:
610  break;
611  }
612  snd_emu10k1_ptr_write(emu, epcm->capture_ba_reg, 0, runtime->dma_addr);
613  epcm->capture_bufsize = snd_pcm_lib_buffer_bytes(substream);
614  epcm->capture_bs_val = 0;
615  for (idx = 0; idx < 31; idx++) {
616  if (capture_period_sizes[idx] == epcm->capture_bufsize) {
617  epcm->capture_bs_val = idx + 1;
618  break;
619  }
620  }
621  if (epcm->capture_bs_val == 0) {
622  snd_BUG();
623  epcm->capture_bs_val++;
624  }
625  if (epcm->type == CAPTURE_AC97ADC) {
626  epcm->capture_cr_val = emu->audigy ? A_ADCCR_LCHANENABLE : ADCCR_LCHANENABLE;
627  if (runtime->channels > 1)
628  epcm->capture_cr_val |= emu->audigy ? A_ADCCR_RCHANENABLE : ADCCR_RCHANENABLE;
629  epcm->capture_cr_val |= emu->audigy ?
630  snd_emu10k1_audigy_capture_rate_reg(runtime->rate) :
631  snd_emu10k1_capture_rate_reg(runtime->rate);
632  }
633  return 0;
634 }
635 
636 static void snd_emu10k1_playback_invalidate_cache(struct snd_emu10k1 *emu, int extra, struct snd_emu10k1_voice *evoice)
637 {
638  struct snd_pcm_runtime *runtime;
639  unsigned int voice, stereo, i, ccis, cra = 64, cs, sample;
640 
641  if (evoice == NULL)
642  return;
643  runtime = evoice->epcm->substream->runtime;
644  voice = evoice->number;
645  stereo = (!extra && runtime->channels == 2);
646  sample = snd_pcm_format_width(runtime->format) == 16 ? 0 : 0x80808080;
647  ccis = emu10k1_ccis(stereo, sample == 0);
648  /* set cs to 2 * number of cache registers beside the invalidated */
649  cs = (sample == 0) ? (32-ccis) : (64-ccis+1) >> 1;
650  if (cs > 16) cs = 16;
651  for (i = 0; i < cs; i++) {
652  snd_emu10k1_ptr_write(emu, CD0 + i, voice, sample);
653  if (stereo) {
654  snd_emu10k1_ptr_write(emu, CD0 + i, voice + 1, sample);
655  }
656  }
657  /* reset cache */
658  snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, 0);
659  snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice, cra);
660  if (stereo) {
661  snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice + 1, 0);
662  snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice + 1, cra);
663  }
664  /* fill cache */
665  snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, ccis);
666  if (stereo) {
667  snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice+1, ccis);
668  }
669 }
670 
671 static void snd_emu10k1_playback_prepare_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice,
672  int master, int extra,
673  struct snd_emu10k1_pcm_mixer *mix)
674 {
675  struct snd_pcm_substream *substream;
676  struct snd_pcm_runtime *runtime;
677  unsigned int attn, vattn;
678  unsigned int voice, tmp;
679 
680  if (evoice == NULL) /* skip second voice for mono */
681  return;
682  substream = evoice->epcm->substream;
683  runtime = substream->runtime;
684  voice = evoice->number;
685 
686  attn = extra ? 0 : 0x00ff;
687  tmp = runtime->channels == 2 ? (master ? 1 : 2) : 0;
688  vattn = mix != NULL ? (mix->attn[tmp] << 16) : 0;
689  snd_emu10k1_ptr_write(emu, IFATN, voice, attn);
690  snd_emu10k1_ptr_write(emu, VTFT, voice, vattn | 0xffff);
691  snd_emu10k1_ptr_write(emu, CVCF, voice, vattn | 0xffff);
692  snd_emu10k1_ptr_write(emu, DCYSUSV, voice, 0x7f7f);
693  snd_emu10k1_voice_clear_loop_stop(emu, voice);
694 }
695 
696 static void snd_emu10k1_playback_trigger_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice, int master, int extra)
697 {
698  struct snd_pcm_substream *substream;
699  struct snd_pcm_runtime *runtime;
700  unsigned int voice, pitch, pitch_target;
701 
702  if (evoice == NULL) /* skip second voice for mono */
703  return;
704  substream = evoice->epcm->substream;
705  runtime = substream->runtime;
706  voice = evoice->number;
707 
708  pitch = snd_emu10k1_rate_to_pitch(runtime->rate) >> 8;
709  if (emu->card_capabilities->emu_model)
710  pitch_target = PITCH_48000; /* Disable interpolators on emu1010 card */
711  else
712  pitch_target = emu10k1_calc_pitch_target(runtime->rate);
713  snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, pitch_target);
714  if (master || evoice->epcm->type == PLAYBACK_EFX)
715  snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, pitch_target);
716  snd_emu10k1_ptr_write(emu, IP, voice, pitch);
717  if (extra)
718  snd_emu10k1_voice_intr_enable(emu, voice);
719 }
720 
721 static void snd_emu10k1_playback_stop_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice)
722 {
723  unsigned int voice;
724 
725  if (evoice == NULL)
726  return;
727  voice = evoice->number;
728  snd_emu10k1_voice_intr_disable(emu, voice);
729  snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, 0);
730  snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, 0);
731  snd_emu10k1_ptr_write(emu, IFATN, voice, 0xffff);
732  snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
733  snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
734  snd_emu10k1_ptr_write(emu, IP, voice, 0);
735 }
736 
737 static inline void snd_emu10k1_playback_mangle_extra(struct snd_emu10k1 *emu,
738  struct snd_emu10k1_pcm *epcm,
739  struct snd_pcm_substream *substream,
740  struct snd_pcm_runtime *runtime)
741 {
742  unsigned int ptr, period_pos;
743 
744  /* try to sychronize the current position for the interrupt
745  source voice */
746  period_pos = runtime->status->hw_ptr - runtime->hw_ptr_interrupt;
747  period_pos %= runtime->period_size;
748  ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->extra->number);
749  ptr &= ~0x00ffffff;
750  ptr |= epcm->ccca_start_addr + period_pos;
751  snd_emu10k1_ptr_write(emu, CCCA, epcm->extra->number, ptr);
752 }
753 
754 static int snd_emu10k1_playback_trigger(struct snd_pcm_substream *substream,
755  int cmd)
756 {
757  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
758  struct snd_pcm_runtime *runtime = substream->runtime;
759  struct snd_emu10k1_pcm *epcm = runtime->private_data;
760  struct snd_emu10k1_pcm_mixer *mix;
761  int result = 0;
762 
763  /*
764  printk(KERN_DEBUG "trigger - emu10k1 = 0x%x, cmd = %i, pointer = %i\n",
765  (int)emu, cmd, substream->ops->pointer(substream))
766  */
767  spin_lock(&emu->reg_lock);
768  switch (cmd) {
769  case SNDRV_PCM_TRIGGER_START:
770  snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra); /* do we need this? */
771  snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[0]);
772  /* follow thru */
773  case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
774  case SNDRV_PCM_TRIGGER_RESUME:
775  if (cmd == SNDRV_PCM_TRIGGER_PAUSE_RELEASE)
776  snd_emu10k1_playback_mangle_extra(emu, epcm, substream, runtime);
777  mix = &emu->pcm_mixer[substream->number];
778  snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 1, 0, mix);
779  snd_emu10k1_playback_prepare_voice(emu, epcm->voices[1], 0, 0, mix);
780  snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
781  snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 1, 0);
782  snd_emu10k1_playback_trigger_voice(emu, epcm->voices[1], 0, 0);
783  snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
784  epcm->running = 1;
785  break;
786  case SNDRV_PCM_TRIGGER_STOP:
787  case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
788  case SNDRV_PCM_TRIGGER_SUSPEND:
789  epcm->running = 0;
790  snd_emu10k1_playback_stop_voice(emu, epcm->voices[0]);
791  snd_emu10k1_playback_stop_voice(emu, epcm->voices[1]);
792  snd_emu10k1_playback_stop_voice(emu, epcm->extra);
793  break;
794  default:
795  result = -EINVAL;
796  break;
797  }
798  spin_unlock(&emu->reg_lock);
799  return result;
800 }
801 
802 static int snd_emu10k1_capture_trigger(struct snd_pcm_substream *substream,
803  int cmd)
804 {
805  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
806  struct snd_pcm_runtime *runtime = substream->runtime;
807  struct snd_emu10k1_pcm *epcm = runtime->private_data;
808  int result = 0;
809 
810  spin_lock(&emu->reg_lock);
811  switch (cmd) {
812  case SNDRV_PCM_TRIGGER_START:
813  case SNDRV_PCM_TRIGGER_RESUME:
814  /* hmm this should cause full and half full interrupt to be raised? */
815  outl(epcm->capture_ipr, emu->port + IPR);
816  snd_emu10k1_intr_enable(emu, epcm->capture_inte);
817  /*
818  printk(KERN_DEBUG "adccr = 0x%x, adcbs = 0x%x\n",
819  epcm->adccr, epcm->adcbs);
820  */
821  switch (epcm->type) {
822  case CAPTURE_AC97ADC:
823  snd_emu10k1_ptr_write(emu, ADCCR, 0, epcm->capture_cr_val);
824  break;
825  case CAPTURE_EFX:
826  if (emu->audigy) {
827  snd_emu10k1_ptr_write(emu, A_FXWC1, 0, epcm->capture_cr_val);
828  snd_emu10k1_ptr_write(emu, A_FXWC2, 0, epcm->capture_cr_val2);
829  snd_printdd("cr_val=0x%x, cr_val2=0x%x\n", epcm->capture_cr_val, epcm->capture_cr_val2);
830  } else
831  snd_emu10k1_ptr_write(emu, FXWC, 0, epcm->capture_cr_val);
832  break;
833  default:
834  break;
835  }
836  snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, epcm->capture_bs_val);
837  epcm->running = 1;
838  epcm->first_ptr = 1;
839  break;
840  case SNDRV_PCM_TRIGGER_STOP:
841  case SNDRV_PCM_TRIGGER_SUSPEND:
842  epcm->running = 0;
843  snd_emu10k1_intr_disable(emu, epcm->capture_inte);
844  outl(epcm->capture_ipr, emu->port + IPR);
845  snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
846  switch (epcm->type) {
847  case CAPTURE_AC97ADC:
848  snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
849  break;
850  case CAPTURE_EFX:
851  if (emu->audigy) {
852  snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
853  snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
854  } else
855  snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
856  break;
857  default:
858  break;
859  }
860  break;
861  default:
862  result = -EINVAL;
863  }
864  spin_unlock(&emu->reg_lock);
865  return result;
866 }
867 
868 static snd_pcm_uframes_t snd_emu10k1_playback_pointer(struct snd_pcm_substream *substream)
869 {
870  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
871  struct snd_pcm_runtime *runtime = substream->runtime;
872  struct snd_emu10k1_pcm *epcm = runtime->private_data;
873  unsigned int ptr;
874 
875  if (!epcm->running)
876  return 0;
877  ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff;
878 #if 0 /* Perex's code */
879  ptr += runtime->buffer_size;
880  ptr -= epcm->ccca_start_addr;
881  ptr %= runtime->buffer_size;
882 #else /* EMU10K1 Open Source code from Creative */
883  if (ptr < epcm->ccca_start_addr)
884  ptr += runtime->buffer_size - epcm->ccca_start_addr;
885  else {
886  ptr -= epcm->ccca_start_addr;
887  if (ptr >= runtime->buffer_size)
888  ptr -= runtime->buffer_size;
889  }
890 #endif
891  /*
892  printk(KERN_DEBUG
893  "ptr = 0x%lx, buffer_size = 0x%lx, period_size = 0x%lx\n",
894  (long)ptr, (long)runtime->buffer_size,
895  (long)runtime->period_size);
896  */
897  return ptr;
898 }
899 
900 
901 static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream,
902  int cmd)
903 {
904  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
905  struct snd_pcm_runtime *runtime = substream->runtime;
906  struct snd_emu10k1_pcm *epcm = runtime->private_data;
907  int i;
908  int result = 0;
909 
910  spin_lock(&emu->reg_lock);
911  switch (cmd) {
912  case SNDRV_PCM_TRIGGER_START:
913  /* prepare voices */
914  for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
915  snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[i]);
916  }
917  snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra);
918 
919  /* follow thru */
920  case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
921  case SNDRV_PCM_TRIGGER_RESUME:
922  snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
923  snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 0, 0,
924  &emu->efx_pcm_mixer[0]);
925  for (i = 1; i < NUM_EFX_PLAYBACK; i++)
926  snd_emu10k1_playback_prepare_voice(emu, epcm->voices[i], 0, 0,
927  &emu->efx_pcm_mixer[i]);
928  snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 0, 0);
929  snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
930  for (i = 1; i < NUM_EFX_PLAYBACK; i++)
931  snd_emu10k1_playback_trigger_voice(emu, epcm->voices[i], 0, 0);
932  epcm->running = 1;
933  break;
934  case SNDRV_PCM_TRIGGER_SUSPEND:
935  case SNDRV_PCM_TRIGGER_STOP:
936  case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
937  epcm->running = 0;
938  for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
939  snd_emu10k1_playback_stop_voice(emu, epcm->voices[i]);
940  }
941  snd_emu10k1_playback_stop_voice(emu, epcm->extra);
942  break;
943  default:
944  result = -EINVAL;
945  break;
946  }
947  spin_unlock(&emu->reg_lock);
948  return result;
949 }
950 
951 
952 static snd_pcm_uframes_t snd_emu10k1_capture_pointer(struct snd_pcm_substream *substream)
953 {
954  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
955  struct snd_pcm_runtime *runtime = substream->runtime;
956  struct snd_emu10k1_pcm *epcm = runtime->private_data;
957  unsigned int ptr;
958 
959  if (!epcm->running)
960  return 0;
961  if (epcm->first_ptr) {
962  udelay(50); /* hack, it takes awhile until capture is started */
963  epcm->first_ptr = 0;
964  }
965  ptr = snd_emu10k1_ptr_read(emu, epcm->capture_idx_reg, 0) & 0x0000ffff;
966  return bytes_to_frames(runtime, ptr);
967 }
968 
969 /*
970  * Playback support device description
971  */
972 
973 static struct snd_pcm_hardware snd_emu10k1_playback =
974 {
975  .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
976  SNDRV_PCM_INFO_BLOCK_TRANSFER |
977  SNDRV_PCM_INFO_RESUME |
978  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
979  .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
980  .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_96000,
981  .rate_min = 4000,
982  .rate_max = 96000,
983  .channels_min = 1,
984  .channels_max = 2,
985  .buffer_bytes_max = (128*1024),
986  .period_bytes_min = 64,
987  .period_bytes_max = (128*1024),
988  .periods_min = 1,
989  .periods_max = 1024,
990  .fifo_size = 0,
991 };
992 
993 /*
994  * Capture support device description
995  */
996 
997 static struct snd_pcm_hardware snd_emu10k1_capture =
998 {
999  .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1000  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1001  SNDRV_PCM_INFO_RESUME |
1002  SNDRV_PCM_INFO_MMAP_VALID),
1003  .formats = SNDRV_PCM_FMTBIT_S16_LE,
1004  .rates = SNDRV_PCM_RATE_8000_48000,
1005  .rate_min = 8000,
1006  .rate_max = 48000,
1007  .channels_min = 1,
1008  .channels_max = 2,
1009  .buffer_bytes_max = (64*1024),
1010  .period_bytes_min = 384,
1011  .period_bytes_max = (64*1024),
1012  .periods_min = 2,
1013  .periods_max = 2,
1014  .fifo_size = 0,
1015 };
1016 
1017 static struct snd_pcm_hardware snd_emu10k1_capture_efx =
1018 {
1019  .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1020  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1021  SNDRV_PCM_INFO_RESUME |
1022  SNDRV_PCM_INFO_MMAP_VALID),
1023  .formats = SNDRV_PCM_FMTBIT_S16_LE,
1024  .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
1025  SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
1026  SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
1027  .rate_min = 44100,
1028  .rate_max = 192000,
1029  .channels_min = 8,
1030  .channels_max = 8,
1031  .buffer_bytes_max = (64*1024),
1032  .period_bytes_min = 384,
1033  .period_bytes_max = (64*1024),
1034  .periods_min = 2,
1035  .periods_max = 2,
1036  .fifo_size = 0,
1037 };
1038 
1039 /*
1040  *
1041  */
1042 
1043 static void snd_emu10k1_pcm_mixer_notify1(struct snd_emu10k1 *emu, struct snd_kcontrol *kctl, int idx, int activate)
1044 {
1045  struct snd_ctl_elem_id id;
1046 
1047  if (! kctl)
1048  return;
1049  if (activate)
1050  kctl->vd[idx].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1051  else
1052  kctl->vd[idx].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1053  snd_ctl_notify(emu->card, SNDRV_CTL_EVENT_MASK_VALUE |
1054  SNDRV_CTL_EVENT_MASK_INFO,
1055  snd_ctl_build_ioff(&id, kctl, idx));
1056 }
1057 
1058 static void snd_emu10k1_pcm_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
1059 {
1060  snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_routing, idx, activate);
1061  snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_volume, idx, activate);
1062  snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_attn, idx, activate);
1063 }
1064 
1065 static void snd_emu10k1_pcm_efx_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
1066 {
1067  snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_routing, idx, activate);
1068  snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_volume, idx, activate);
1069  snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_attn, idx, activate);
1070 }
1071 
1072 static void snd_emu10k1_pcm_free_substream(struct snd_pcm_runtime *runtime)
1073 {
1074  kfree(runtime->private_data);
1075 }
1076 
1077 static int snd_emu10k1_efx_playback_close(struct snd_pcm_substream *substream)
1078 {
1079  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1080  struct snd_emu10k1_pcm_mixer *mix;
1081  int i;
1082 
1083  for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
1084  mix = &emu->efx_pcm_mixer[i];
1085  mix->epcm = NULL;
1086  snd_emu10k1_pcm_efx_mixer_notify(emu, i, 0);
1087  }
1088  return 0;
1089 }
1090 
1091 static int snd_emu10k1_efx_playback_open(struct snd_pcm_substream *substream)
1092 {
1093  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1094  struct snd_emu10k1_pcm *epcm;
1095  struct snd_emu10k1_pcm_mixer *mix;
1096  struct snd_pcm_runtime *runtime = substream->runtime;
1097  int i;
1098 
1099  epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1100  if (epcm == NULL)
1101  return -ENOMEM;
1102  epcm->emu = emu;
1103  epcm->type = PLAYBACK_EFX;
1104  epcm->substream = substream;
1105 
1106  emu->pcm_playback_efx_substream = substream;
1107 
1108  runtime->private_data = epcm;
1109  runtime->private_free = snd_emu10k1_pcm_free_substream;
1110  runtime->hw = snd_emu10k1_efx_playback;
1111 
1112  for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
1113  mix = &emu->efx_pcm_mixer[i];
1114  mix->send_routing[0][0] = i;
1115  memset(&mix->send_volume, 0, sizeof(mix->send_volume));
1116  mix->send_volume[0][0] = 255;
1117  mix->attn[0] = 0xffff;
1118  mix->epcm = epcm;
1119  snd_emu10k1_pcm_efx_mixer_notify(emu, i, 1);
1120  }
1121  return 0;
1122 }
1123 
1124 static int snd_emu10k1_playback_open(struct snd_pcm_substream *substream)
1125 {
1126  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1127  struct snd_emu10k1_pcm *epcm;
1128  struct snd_emu10k1_pcm_mixer *mix;
1129  struct snd_pcm_runtime *runtime = substream->runtime;
1130  int i, err;
1131 
1132  epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1133  if (epcm == NULL)
1134  return -ENOMEM;
1135  epcm->emu = emu;
1136  epcm->type = PLAYBACK_EMUVOICE;
1137  epcm->substream = substream;
1138  runtime->private_data = epcm;
1139  runtime->private_free = snd_emu10k1_pcm_free_substream;
1140  runtime->hw = snd_emu10k1_playback;
1141  if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
1142  kfree(epcm);
1143  return err;
1144  }
1145  if ((err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX)) < 0) {
1146  kfree(epcm);
1147  return err;
1148  }
1149  err = snd_pcm_hw_rule_noresample(runtime, 48000);
1150  if (err < 0) {
1151  kfree(epcm);
1152  return err;
1153  }
1154  mix = &emu->pcm_mixer[substream->number];
1155  for (i = 0; i < 4; i++)
1156  mix->send_routing[0][i] = mix->send_routing[1][i] = mix->send_routing[2][i] = i;
1157  memset(&mix->send_volume, 0, sizeof(mix->send_volume));
1158  mix->send_volume[0][0] = mix->send_volume[0][1] =
1159  mix->send_volume[1][0] = mix->send_volume[2][1] = 255;
1160  mix->attn[0] = mix->attn[1] = mix->attn[2] = 0xffff;
1161  mix->epcm = epcm;
1162  snd_emu10k1_pcm_mixer_notify(emu, substream->number, 1);
1163  return 0;
1164 }
1165 
1166 static int snd_emu10k1_playback_close(struct snd_pcm_substream *substream)
1167 {
1168  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1169  struct snd_emu10k1_pcm_mixer *mix = &emu->pcm_mixer[substream->number];
1170 
1171  mix->epcm = NULL;
1172  snd_emu10k1_pcm_mixer_notify(emu, substream->number, 0);
1173  return 0;
1174 }
1175 
1176 static int snd_emu10k1_capture_open(struct snd_pcm_substream *substream)
1177 {
1178  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1179  struct snd_pcm_runtime *runtime = substream->runtime;
1180  struct snd_emu10k1_pcm *epcm;
1181 
1182  epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1183  if (epcm == NULL)
1184  return -ENOMEM;
1185  epcm->emu = emu;
1186  epcm->type = CAPTURE_AC97ADC;
1187  epcm->substream = substream;
1188  epcm->capture_ipr = IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL;
1189  epcm->capture_inte = INTE_ADCBUFENABLE;
1190  epcm->capture_ba_reg = ADCBA;
1191  epcm->capture_bs_reg = ADCBS;
1192  epcm->capture_idx_reg = emu->audigy ? A_ADCIDX : ADCIDX;
1193  runtime->private_data = epcm;
1194  runtime->private_free = snd_emu10k1_pcm_free_substream;
1195  runtime->hw = snd_emu10k1_capture;
1196  emu->capture_interrupt = snd_emu10k1_pcm_ac97adc_interrupt;
1197  emu->pcm_capture_substream = substream;
1198  snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1199  snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_capture_rates);
1200  return 0;
1201 }
1202 
1203 static int snd_emu10k1_capture_close(struct snd_pcm_substream *substream)
1204 {
1205  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1206 
1207  emu->capture_interrupt = NULL;
1208  emu->pcm_capture_substream = NULL;
1209  return 0;
1210 }
1211 
1212 static int snd_emu10k1_capture_mic_open(struct snd_pcm_substream *substream)
1213 {
1214  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1215  struct snd_emu10k1_pcm *epcm;
1216  struct snd_pcm_runtime *runtime = substream->runtime;
1217 
1218  epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1219  if (epcm == NULL)
1220  return -ENOMEM;
1221  epcm->emu = emu;
1222  epcm->type = CAPTURE_AC97MIC;
1223  epcm->substream = substream;
1224  epcm->capture_ipr = IPR_MICBUFFULL|IPR_MICBUFHALFFULL;
1225  epcm->capture_inte = INTE_MICBUFENABLE;
1226  epcm->capture_ba_reg = MICBA;
1227  epcm->capture_bs_reg = MICBS;
1228  epcm->capture_idx_reg = emu->audigy ? A_MICIDX : MICIDX;
1229  substream->runtime->private_data = epcm;
1230  substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1231  runtime->hw = snd_emu10k1_capture;
1232  runtime->hw.rates = SNDRV_PCM_RATE_8000;
1233  runtime->hw.rate_min = runtime->hw.rate_max = 8000;
1234  runtime->hw.channels_min = 1;
1235  emu->capture_mic_interrupt = snd_emu10k1_pcm_ac97mic_interrupt;
1236  emu->pcm_capture_mic_substream = substream;
1237  snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1238  return 0;
1239 }
1240 
1241 static int snd_emu10k1_capture_mic_close(struct snd_pcm_substream *substream)
1242 {
1243  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1244 
1245  emu->capture_interrupt = NULL;
1246  emu->pcm_capture_mic_substream = NULL;
1247  return 0;
1248 }
1249 
1250 static int snd_emu10k1_capture_efx_open(struct snd_pcm_substream *substream)
1251 {
1252  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1253  struct snd_emu10k1_pcm *epcm;
1254  struct snd_pcm_runtime *runtime = substream->runtime;
1255  int nefx = emu->audigy ? 64 : 32;
1256  int idx;
1257 
1258  epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1259  if (epcm == NULL)
1260  return -ENOMEM;
1261  epcm->emu = emu;
1262  epcm->type = CAPTURE_EFX;
1263  epcm->substream = substream;
1264  epcm->capture_ipr = IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL;
1265  epcm->capture_inte = INTE_EFXBUFENABLE;
1266  epcm->capture_ba_reg = FXBA;
1267  epcm->capture_bs_reg = FXBS;
1268  epcm->capture_idx_reg = FXIDX;
1269  substream->runtime->private_data = epcm;
1270  substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1271  runtime->hw = snd_emu10k1_capture_efx;
1272  runtime->hw.rates = SNDRV_PCM_RATE_48000;
1273  runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1274  spin_lock_irq(&emu->reg_lock);
1275  if (emu->card_capabilities->emu_model) {
1276  /* Nb. of channels has been increased to 16 */
1277  /* TODO
1278  * SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE
1279  * SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
1280  * SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
1281  * SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000
1282  * rate_min = 44100,
1283  * rate_max = 192000,
1284  * channels_min = 16,
1285  * channels_max = 16,
1286  * Need to add mixer control to fix sample rate
1287  *
1288  * There are 32 mono channels of 16bits each.
1289  * 24bit Audio uses 2x channels over 16bit
1290  * 96kHz uses 2x channels over 48kHz
1291  * 192kHz uses 4x channels over 48kHz
1292  * So, for 48kHz 24bit, one has 16 channels
1293  * for 96kHz 24bit, one has 8 channels
1294  * for 192kHz 24bit, one has 4 channels
1295  *
1296  */
1297 #if 1
1298  switch (emu->emu1010.internal_clock) {
1299  case 0:
1300  /* For 44.1kHz */
1301  runtime->hw.rates = SNDRV_PCM_RATE_44100;
1302  runtime->hw.rate_min = runtime->hw.rate_max = 44100;
1303  runtime->hw.channels_min =
1304  runtime->hw.channels_max = 16;
1305  break;
1306  case 1:
1307  /* For 48kHz */
1308  runtime->hw.rates = SNDRV_PCM_RATE_48000;
1309  runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1310  runtime->hw.channels_min =
1311  runtime->hw.channels_max = 16;
1312  break;
1313  }
1314 #endif
1315 #if 0
1316  /* For 96kHz */
1317  runtime->hw.rates = SNDRV_PCM_RATE_96000;
1318  runtime->hw.rate_min = runtime->hw.rate_max = 96000;
1319  runtime->hw.channels_min = runtime->hw.channels_max = 4;
1320 #endif
1321 #if 0
1322  /* For 192kHz */
1323  runtime->hw.rates = SNDRV_PCM_RATE_192000;
1324  runtime->hw.rate_min = runtime->hw.rate_max = 192000;
1325  runtime->hw.channels_min = runtime->hw.channels_max = 2;
1326 #endif
1327  runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;
1328  /* efx_voices_mask[0] is expected to be zero
1329  * efx_voices_mask[1] is expected to have 32bits set
1330  */
1331  } else {
1332  runtime->hw.channels_min = runtime->hw.channels_max = 0;
1333  for (idx = 0; idx < nefx; idx++) {
1334  if (emu->efx_voices_mask[idx/32] & (1 << (idx%32))) {
1335  runtime->hw.channels_min++;
1336  runtime->hw.channels_max++;
1337  }
1338  }
1339  }
1340  epcm->capture_cr_val = emu->efx_voices_mask[0];
1341  epcm->capture_cr_val2 = emu->efx_voices_mask[1];
1342  spin_unlock_irq(&emu->reg_lock);
1343  emu->capture_efx_interrupt = snd_emu10k1_pcm_efx_interrupt;
1344  emu->pcm_capture_efx_substream = substream;
1345  snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1346  return 0;
1347 }
1348 
1349 static int snd_emu10k1_capture_efx_close(struct snd_pcm_substream *substream)
1350 {
1351  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1352 
1353  emu->capture_interrupt = NULL;
1354  emu->pcm_capture_efx_substream = NULL;
1355  return 0;
1356 }
1357 
1358 static struct snd_pcm_ops snd_emu10k1_playback_ops = {
1359  .open = snd_emu10k1_playback_open,
1360  .close = snd_emu10k1_playback_close,
1361  .ioctl = snd_pcm_lib_ioctl,
1362  .hw_params = snd_emu10k1_playback_hw_params,
1363  .hw_free = snd_emu10k1_playback_hw_free,
1364  .prepare = snd_emu10k1_playback_prepare,
1365  .trigger = snd_emu10k1_playback_trigger,
1366  .pointer = snd_emu10k1_playback_pointer,
1367  .page = snd_pcm_sgbuf_ops_page,
1368 };
1369 
1370 static struct snd_pcm_ops snd_emu10k1_capture_ops = {
1371  .open = snd_emu10k1_capture_open,
1372  .close = snd_emu10k1_capture_close,
1373  .ioctl = snd_pcm_lib_ioctl,
1374  .hw_params = snd_emu10k1_capture_hw_params,
1375  .hw_free = snd_emu10k1_capture_hw_free,
1376  .prepare = snd_emu10k1_capture_prepare,
1377  .trigger = snd_emu10k1_capture_trigger,
1378  .pointer = snd_emu10k1_capture_pointer,
1379 };
1380 
1381 /* EFX playback */
1382 static struct snd_pcm_ops snd_emu10k1_efx_playback_ops = {
1383  .open = snd_emu10k1_efx_playback_open,
1384  .close = snd_emu10k1_efx_playback_close,
1385  .ioctl = snd_pcm_lib_ioctl,
1386  .hw_params = snd_emu10k1_playback_hw_params,
1387  .hw_free = snd_emu10k1_efx_playback_hw_free,
1388  .prepare = snd_emu10k1_efx_playback_prepare,
1389  .trigger = snd_emu10k1_efx_playback_trigger,
1390  .pointer = snd_emu10k1_efx_playback_pointer,
1391  .page = snd_pcm_sgbuf_ops_page,
1392 };
1393 
1394 int __devinit snd_emu10k1_pcm(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1395 {
1396  struct snd_pcm *pcm;
1397  struct snd_pcm_substream *substream;
1398  int err;
1399 
1400  if (rpcm)
1401  *rpcm = NULL;
1402 
1403  if ((err = snd_pcm_new(emu->card, "emu10k1", device, 32, 1, &pcm)) < 0)
1404  return err;
1405 
1406  pcm->private_data = emu;
1407 
1408  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_playback_ops);
1409  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_ops);
1410 
1411  pcm->info_flags = 0;
1412  pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1413  strcpy(pcm->name, "ADC Capture/Standard PCM Playback");
1414  emu->pcm = pcm;
1415 
1416  for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1417  if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
1418  return err;
1419 
1420  for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substream->next)
1421  snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1422 
1423  if (rpcm)
1424  *rpcm = pcm;
1425 
1426  return 0;
1427 }
1428 
1429 int __devinit snd_emu10k1_pcm_multi(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1430 {
1431  struct snd_pcm *pcm;
1432  struct snd_pcm_substream *substream;
1433  int err;
1434 
1435  if (rpcm)
1436  *rpcm = NULL;
1437 
1438  if ((err = snd_pcm_new(emu->card, "emu10k1", device, 1, 0, &pcm)) < 0)
1439  return err;
1440 
1441  pcm->private_data = emu;
1442 
1443  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_efx_playback_ops);
1444 
1445  pcm->info_flags = 0;
1446  pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1447  strcpy(pcm->name, "Multichannel Playback");
1448  emu->pcm_multi = pcm;
1449 
1450  for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1451  if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
1452  return err;
1453 
1454  if (rpcm)
1455  *rpcm = pcm;
1456 
1457  return 0;
1458 }
1459 
1460 
1461 static struct snd_pcm_ops snd_emu10k1_capture_mic_ops = {
1462  .open = snd_emu10k1_capture_mic_open,
1463  .close = snd_emu10k1_capture_mic_close,
1464  .ioctl = snd_pcm_lib_ioctl,
1465  .hw_params = snd_emu10k1_capture_hw_params,
1466  .hw_free = snd_emu10k1_capture_hw_free,
1467  .prepare = snd_emu10k1_capture_prepare,
1468  .trigger = snd_emu10k1_capture_trigger,
1469  .pointer = snd_emu10k1_capture_pointer,
1470 };
1471 
1472 int __devinit snd_emu10k1_pcm_mic(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1473 {
1474  struct snd_pcm *pcm;
1475  int err;
1476 
1477  if (rpcm)
1478  *rpcm = NULL;
1479 
1480  if ((err = snd_pcm_new(emu->card, "emu10k1 mic", device, 0, 1, &pcm)) < 0)
1481  return err;
1482 
1483  pcm->private_data = emu;
1484 
1485  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_mic_ops);
1486 
1487  pcm->info_flags = 0;
1488  strcpy(pcm->name, "Mic Capture");
1489  emu->pcm_mic = pcm;
1490 
1491  snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1492 
1493  if (rpcm)
1494  *rpcm = pcm;
1495  return 0;
1496 }
1497 
1498 static int snd_emu10k1_pcm_efx_voices_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1499 {
1500  struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1501  int nefx = emu->audigy ? 64 : 32;
1502  uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1503  uinfo->count = nefx;
1504  uinfo->value.integer.min = 0;
1505  uinfo->value.integer.max = 1;
1506  return 0;
1507 }
1508 
1509 static int snd_emu10k1_pcm_efx_voices_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1510 {
1511  struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1512  int nefx = emu->audigy ? 64 : 32;
1513  int idx;
1514 
1515  spin_lock_irq(&emu->reg_lock);
1516  for (idx = 0; idx < nefx; idx++)
1517  ucontrol->value.integer.value[idx] = (emu->efx_voices_mask[idx / 32] & (1 << (idx % 32))) ? 1 : 0;
1518  spin_unlock_irq(&emu->reg_lock);
1519  return 0;
1520 }
1521 
1522 static int snd_emu10k1_pcm_efx_voices_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1523 {
1524  struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1525  unsigned int nval[2], bits;
1526  int nefx = emu->audigy ? 64 : 32;
1527  int nefxb = emu->audigy ? 7 : 6;
1528  int change, idx;
1529 
1530  nval[0] = nval[1] = 0;
1531  for (idx = 0, bits = 0; idx < nefx; idx++)
1532  if (ucontrol->value.integer.value[idx]) {
1533  nval[idx / 32] |= 1 << (idx % 32);
1534  bits++;
1535  }
1536 
1537  for (idx = 0; idx < nefxb; idx++)
1538  if (1 << idx == bits)
1539  break;
1540 
1541  if (idx >= nefxb)
1542  return -EINVAL;
1543 
1544  spin_lock_irq(&emu->reg_lock);
1545  change = (nval[0] != emu->efx_voices_mask[0]) ||
1546  (nval[1] != emu->efx_voices_mask[1]);
1547  emu->efx_voices_mask[0] = nval[0];
1548  emu->efx_voices_mask[1] = nval[1];
1549  spin_unlock_irq(&emu->reg_lock);
1550  return change;
1551 }
1552 
1553 static struct snd_kcontrol_new snd_emu10k1_pcm_efx_voices_mask = {
1554  .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1555  .name = "Captured FX8010 Outputs",
1556  .info = snd_emu10k1_pcm_efx_voices_mask_info,
1557  .get = snd_emu10k1_pcm_efx_voices_mask_get,
1558  .put = snd_emu10k1_pcm_efx_voices_mask_put
1559 };
1560 
1561 static struct snd_pcm_ops snd_emu10k1_capture_efx_ops = {
1562  .open = snd_emu10k1_capture_efx_open,
1563  .close = snd_emu10k1_capture_efx_close,
1564  .ioctl = snd_pcm_lib_ioctl,
1565  .hw_params = snd_emu10k1_capture_hw_params,
1566  .hw_free = snd_emu10k1_capture_hw_free,
1567  .prepare = snd_emu10k1_capture_prepare,
1568  .trigger = snd_emu10k1_capture_trigger,
1569  .pointer = snd_emu10k1_capture_pointer,
1570 };
1571 
1572 
1573 /* EFX playback */
1574 
1575 #define INITIAL_TRAM_SHIFT 14
1576 #define INITIAL_TRAM_POS(size) ((((size) / 2) - INITIAL_TRAM_SHIFT) - 1)
1577 
1578 static void snd_emu10k1_fx8010_playback_irq(struct snd_emu10k1 *emu, void *private_data)
1579 {
1580  struct snd_pcm_substream *substream = private_data;
1581  snd_pcm_period_elapsed(substream);
1582 }
1583 
1584 static void snd_emu10k1_fx8010_playback_tram_poke1(unsigned short *dst_left,
1585  unsigned short *dst_right,
1586  unsigned short *src,
1587  unsigned int count,
1588  unsigned int tram_shift)
1589 {
1590  /*
1591  printk(KERN_DEBUG "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  snd_pcm_indirect_playback_transfer(substream, &pcm->pcm_rec, fx8010_pb_trans_copy);
1643  return 0;
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  printk(KERN_DEBUG "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); pcm->irq = NULL;
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 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  .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1758  .rates = SNDRV_PCM_RATE_48000,
1759  .rate_min = 48000,
1760  .rate_max = 48000,
1761  .channels_min = 1,
1762  .channels_max = 1,
1763  .buffer_bytes_max = (128*1024),
1764  .period_bytes_min = 1024,
1765  .period_bytes_max = (128*1024),
1766  .periods_min = 2,
1767  .periods_max = 1024,
1768  .fifo_size = 0,
1769 };
1770 
1771 static int snd_emu10k1_fx8010_playback_open(struct snd_pcm_substream *substream)
1772 {
1773  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1774  struct snd_pcm_runtime *runtime = substream->runtime;
1775  struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1776 
1777  runtime->hw = snd_emu10k1_fx8010_playback;
1778  runtime->hw.channels_min = runtime->hw.channels_max = pcm->channels;
1779  runtime->hw.period_bytes_max = (pcm->buffer_size * 2) / 2;
1780  spin_lock_irq(&emu->reg_lock);
1781  if (pcm->valid == 0) {
1782  spin_unlock_irq(&emu->reg_lock);
1783  return -ENODEV;
1784  }
1785  pcm->opened = 1;
1786  spin_unlock_irq(&emu->reg_lock);
1787  return 0;
1788 }
1789 
1790 static int snd_emu10k1_fx8010_playback_close(struct snd_pcm_substream *substream)
1791 {
1792  struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1793  struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1794 
1795  spin_lock_irq(&emu->reg_lock);
1796  pcm->opened = 0;
1797  spin_unlock_irq(&emu->reg_lock);
1798  return 0;
1799 }
1800 
1801 static struct snd_pcm_ops snd_emu10k1_fx8010_playback_ops = {
1802  .open = snd_emu10k1_fx8010_playback_open,
1803  .close = snd_emu10k1_fx8010_playback_close,
1804  .ioctl = snd_pcm_lib_ioctl,
1805  .hw_params = snd_emu10k1_fx8010_playback_hw_params,
1806  .hw_free = snd_emu10k1_fx8010_playback_hw_free,
1807  .prepare = snd_emu10k1_fx8010_playback_prepare,
1808  .trigger = snd_emu10k1_fx8010_playback_trigger,
1809  .pointer = snd_emu10k1_fx8010_playback_pointer,
1810  .ack = snd_emu10k1_fx8010_playback_transfer,
1811 };
1812 
1813 int __devinit snd_emu10k1_pcm_efx(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1814 {
1815  struct snd_pcm *pcm;
1816  struct snd_kcontrol *kctl;
1817  int err;
1818 
1819  if (rpcm)
1820  *rpcm = NULL;
1821 
1822  if ((err = snd_pcm_new(emu->card, "emu10k1 efx", device, 8, 1, &pcm)) < 0)
1823  return err;
1824 
1825  pcm->private_data = emu;
1826 
1827  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_fx8010_playback_ops);
1828  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_efx_ops);
1829 
1830  pcm->info_flags = 0;
1831  strcpy(pcm->name, "Multichannel Capture/PT Playback");
1832  emu->pcm_efx = pcm;
1833  if (rpcm)
1834  *rpcm = pcm;
1835 
1836  /* EFX capture - record the "FXBUS2" channels, by default we connect the EXTINs
1837  * to these
1838  */
1839 
1840  /* emu->efx_voices_mask[0] = FXWC_DEFAULTROUTE_C | FXWC_DEFAULTROUTE_A; */
1841  if (emu->audigy) {
1842  emu->efx_voices_mask[0] = 0;
1843  if (emu->card_capabilities->emu_model)
1844  /* Pavel Hofman - 32 voices will be used for
1845  * capture (write mode) -
1846  * each bit = corresponding voice
1847  */
1848  emu->efx_voices_mask[1] = 0xffffffff;
1849  else
1850  emu->efx_voices_mask[1] = 0xffff;
1851  } else {
1852  emu->efx_voices_mask[0] = 0xffff0000;
1853  emu->efx_voices_mask[1] = 0;
1854  }
1855  /* For emu1010, the control has to set 32 upper bits (voices)
1856  * out of the 64 bits (voices) to true for the 16-channels capture
1857  * to work correctly. Correct A_FXWC2 initial value (0xffffffff)
1858  * is already defined but the snd_emu10k1_pcm_efx_voices_mask
1859  * control can override this register's value.
1860  */
1861  kctl = snd_ctl_new1(&snd_emu10k1_pcm_efx_voices_mask, emu);
1862  if (!kctl)
1863  return -ENOMEM;
1864  kctl->id.device = device;
1865  snd_ctl_add(emu->card, kctl);
1866 
1867  snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1868 
1869  return 0;
1870 }
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