xref: /linux/sound/pci/emu10k1/emupcm.c (revision d39d0ed196aa1685bb24771e92f78633c66ac9cb)
1 /*
2  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3  *                   Creative Labs, Inc.
4  *  Routines for control of EMU10K1 chips / PCM routines
5  *  Multichannel PCM support Copyright (c) Lee Revell <rlrevell@joe-job.com>
6  *
7  *  BUGS:
8  *    --
9  *
10  *  TODO:
11  *    --
12  *
13  *   This program is free software; you can redistribute it and/or modify
14  *   it under the terms of the GNU General Public License as published by
15  *   the Free Software Foundation; either version 2 of the License, or
16  *   (at your option) any later version.
17  *
18  *   This program is distributed in the hope that it will be useful,
19  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
20  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21  *   GNU General Public License for more details.
22  *
23  *   You should have received a copy of the GNU General Public License
24  *   along with this program; if not, write to the Free Software
25  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
26  *
27  */
28 
29 #include <linux/pci.h>
30 #include <linux/delay.h>
31 #include <linux/slab.h>
32 #include <linux/time.h>
33 #include <linux/init.h>
34 #include <sound/core.h>
35 #include <sound/emu10k1.h>
36 
37 static void snd_emu10k1_pcm_interrupt(struct snd_emu10k1 *emu,
38 				      struct snd_emu10k1_voice *voice)
39 {
40 	struct snd_emu10k1_pcm *epcm;
41 
42 	if ((epcm = voice->epcm) == NULL)
43 		return;
44 	if (epcm->substream == NULL)
45 		return;
46 #if 0
47 	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 	mix = &emu->pcm_mixer[substream->number];
1150 	for (i = 0; i < 4; i++)
1151 		mix->send_routing[0][i] = mix->send_routing[1][i] = mix->send_routing[2][i] = i;
1152 	memset(&mix->send_volume, 0, sizeof(mix->send_volume));
1153 	mix->send_volume[0][0] = mix->send_volume[0][1] =
1154 	mix->send_volume[1][0] = mix->send_volume[2][1] = 255;
1155 	mix->attn[0] = mix->attn[1] = mix->attn[2] = 0xffff;
1156 	mix->epcm = epcm;
1157 	snd_emu10k1_pcm_mixer_notify(emu, substream->number, 1);
1158 	return 0;
1159 }
1160 
1161 static int snd_emu10k1_playback_close(struct snd_pcm_substream *substream)
1162 {
1163 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1164 	struct snd_emu10k1_pcm_mixer *mix = &emu->pcm_mixer[substream->number];
1165 
1166 	mix->epcm = NULL;
1167 	snd_emu10k1_pcm_mixer_notify(emu, substream->number, 0);
1168 	return 0;
1169 }
1170 
1171 static int snd_emu10k1_capture_open(struct snd_pcm_substream *substream)
1172 {
1173 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1174 	struct snd_pcm_runtime *runtime = substream->runtime;
1175 	struct snd_emu10k1_pcm *epcm;
1176 
1177 	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1178 	if (epcm == NULL)
1179 		return -ENOMEM;
1180 	epcm->emu = emu;
1181 	epcm->type = CAPTURE_AC97ADC;
1182 	epcm->substream = substream;
1183 	epcm->capture_ipr = IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL;
1184 	epcm->capture_inte = INTE_ADCBUFENABLE;
1185 	epcm->capture_ba_reg = ADCBA;
1186 	epcm->capture_bs_reg = ADCBS;
1187 	epcm->capture_idx_reg = emu->audigy ? A_ADCIDX : ADCIDX;
1188 	runtime->private_data = epcm;
1189 	runtime->private_free = snd_emu10k1_pcm_free_substream;
1190 	runtime->hw = snd_emu10k1_capture;
1191 	emu->capture_interrupt = snd_emu10k1_pcm_ac97adc_interrupt;
1192 	emu->pcm_capture_substream = substream;
1193 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1194 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_capture_rates);
1195 	return 0;
1196 }
1197 
1198 static int snd_emu10k1_capture_close(struct snd_pcm_substream *substream)
1199 {
1200 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1201 
1202 	emu->capture_interrupt = NULL;
1203 	emu->pcm_capture_substream = NULL;
1204 	return 0;
1205 }
1206 
1207 static int snd_emu10k1_capture_mic_open(struct snd_pcm_substream *substream)
1208 {
1209 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1210 	struct snd_emu10k1_pcm *epcm;
1211 	struct snd_pcm_runtime *runtime = substream->runtime;
1212 
1213 	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1214 	if (epcm == NULL)
1215 		return -ENOMEM;
1216 	epcm->emu = emu;
1217 	epcm->type = CAPTURE_AC97MIC;
1218 	epcm->substream = substream;
1219 	epcm->capture_ipr = IPR_MICBUFFULL|IPR_MICBUFHALFFULL;
1220 	epcm->capture_inte = INTE_MICBUFENABLE;
1221 	epcm->capture_ba_reg = MICBA;
1222 	epcm->capture_bs_reg = MICBS;
1223 	epcm->capture_idx_reg = emu->audigy ? A_MICIDX : MICIDX;
1224 	substream->runtime->private_data = epcm;
1225 	substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1226 	runtime->hw = snd_emu10k1_capture;
1227 	runtime->hw.rates = SNDRV_PCM_RATE_8000;
1228 	runtime->hw.rate_min = runtime->hw.rate_max = 8000;
1229 	runtime->hw.channels_min = 1;
1230 	emu->capture_mic_interrupt = snd_emu10k1_pcm_ac97mic_interrupt;
1231 	emu->pcm_capture_mic_substream = substream;
1232 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1233 	return 0;
1234 }
1235 
1236 static int snd_emu10k1_capture_mic_close(struct snd_pcm_substream *substream)
1237 {
1238 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1239 
1240 	emu->capture_interrupt = NULL;
1241 	emu->pcm_capture_mic_substream = NULL;
1242 	return 0;
1243 }
1244 
1245 static int snd_emu10k1_capture_efx_open(struct snd_pcm_substream *substream)
1246 {
1247 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1248 	struct snd_emu10k1_pcm *epcm;
1249 	struct snd_pcm_runtime *runtime = substream->runtime;
1250 	int nefx = emu->audigy ? 64 : 32;
1251 	int idx;
1252 
1253 	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
1254 	if (epcm == NULL)
1255 		return -ENOMEM;
1256 	epcm->emu = emu;
1257 	epcm->type = CAPTURE_EFX;
1258 	epcm->substream = substream;
1259 	epcm->capture_ipr = IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL;
1260 	epcm->capture_inte = INTE_EFXBUFENABLE;
1261 	epcm->capture_ba_reg = FXBA;
1262 	epcm->capture_bs_reg = FXBS;
1263 	epcm->capture_idx_reg = FXIDX;
1264 	substream->runtime->private_data = epcm;
1265 	substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
1266 	runtime->hw = snd_emu10k1_capture_efx;
1267 	runtime->hw.rates = SNDRV_PCM_RATE_48000;
1268 	runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1269 	spin_lock_irq(&emu->reg_lock);
1270 	if (emu->card_capabilities->emu_model) {
1271 		/*  Nb. of channels has been increased to 16 */
1272 		/* TODO
1273 		 * SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE
1274 		 * SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
1275 		 * SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
1276 		 * SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000
1277 		 * rate_min = 44100,
1278 		 * rate_max = 192000,
1279 		 * channels_min = 16,
1280 		 * channels_max = 16,
1281 		 * Need to add mixer control to fix sample rate
1282 		 *
1283 		 * There are 32 mono channels of 16bits each.
1284 		 * 24bit Audio uses 2x channels over 16bit
1285 		 * 96kHz uses 2x channels over 48kHz
1286 		 * 192kHz uses 4x channels over 48kHz
1287 		 * So, for 48kHz 24bit, one has 16 channels
1288 		 * for 96kHz 24bit, one has 8 channels
1289 		 * for 192kHz 24bit, one has 4 channels
1290 		 *
1291 		 */
1292 #if 1
1293 		switch (emu->emu1010.internal_clock) {
1294 		case 0:
1295 			/* For 44.1kHz */
1296 			runtime->hw.rates = SNDRV_PCM_RATE_44100;
1297 			runtime->hw.rate_min = runtime->hw.rate_max = 44100;
1298 			runtime->hw.channels_min =
1299 				runtime->hw.channels_max = 16;
1300 			break;
1301 		case 1:
1302 			/* For 48kHz */
1303 			runtime->hw.rates = SNDRV_PCM_RATE_48000;
1304 			runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1305 			runtime->hw.channels_min =
1306 				runtime->hw.channels_max = 16;
1307 			break;
1308 		};
1309 #endif
1310 #if 0
1311 		/* For 96kHz */
1312 		runtime->hw.rates = SNDRV_PCM_RATE_96000;
1313 		runtime->hw.rate_min = runtime->hw.rate_max = 96000;
1314 		runtime->hw.channels_min = runtime->hw.channels_max = 4;
1315 #endif
1316 #if 0
1317 		/* For 192kHz */
1318 		runtime->hw.rates = SNDRV_PCM_RATE_192000;
1319 		runtime->hw.rate_min = runtime->hw.rate_max = 192000;
1320 		runtime->hw.channels_min = runtime->hw.channels_max = 2;
1321 #endif
1322 		runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;
1323 		/* efx_voices_mask[0] is expected to be zero
1324  		 * efx_voices_mask[1] is expected to have 32bits set
1325 		 */
1326 	} else {
1327 		runtime->hw.channels_min = runtime->hw.channels_max = 0;
1328 		for (idx = 0; idx < nefx; idx++) {
1329 			if (emu->efx_voices_mask[idx/32] & (1 << (idx%32))) {
1330 				runtime->hw.channels_min++;
1331 				runtime->hw.channels_max++;
1332 			}
1333 		}
1334 	}
1335 	epcm->capture_cr_val = emu->efx_voices_mask[0];
1336 	epcm->capture_cr_val2 = emu->efx_voices_mask[1];
1337 	spin_unlock_irq(&emu->reg_lock);
1338 	emu->capture_efx_interrupt = snd_emu10k1_pcm_efx_interrupt;
1339 	emu->pcm_capture_efx_substream = substream;
1340 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
1341 	return 0;
1342 }
1343 
1344 static int snd_emu10k1_capture_efx_close(struct snd_pcm_substream *substream)
1345 {
1346 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1347 
1348 	emu->capture_interrupt = NULL;
1349 	emu->pcm_capture_efx_substream = NULL;
1350 	return 0;
1351 }
1352 
1353 static struct snd_pcm_ops snd_emu10k1_playback_ops = {
1354 	.open =			snd_emu10k1_playback_open,
1355 	.close =		snd_emu10k1_playback_close,
1356 	.ioctl =		snd_pcm_lib_ioctl,
1357 	.hw_params =		snd_emu10k1_playback_hw_params,
1358 	.hw_free =		snd_emu10k1_playback_hw_free,
1359 	.prepare =		snd_emu10k1_playback_prepare,
1360 	.trigger =		snd_emu10k1_playback_trigger,
1361 	.pointer =		snd_emu10k1_playback_pointer,
1362 	.page =			snd_pcm_sgbuf_ops_page,
1363 };
1364 
1365 static struct snd_pcm_ops snd_emu10k1_capture_ops = {
1366 	.open =			snd_emu10k1_capture_open,
1367 	.close =		snd_emu10k1_capture_close,
1368 	.ioctl =		snd_pcm_lib_ioctl,
1369 	.hw_params =		snd_emu10k1_capture_hw_params,
1370 	.hw_free =		snd_emu10k1_capture_hw_free,
1371 	.prepare =		snd_emu10k1_capture_prepare,
1372 	.trigger =		snd_emu10k1_capture_trigger,
1373 	.pointer =		snd_emu10k1_capture_pointer,
1374 };
1375 
1376 /* EFX playback */
1377 static struct snd_pcm_ops snd_emu10k1_efx_playback_ops = {
1378 	.open =			snd_emu10k1_efx_playback_open,
1379 	.close =		snd_emu10k1_efx_playback_close,
1380 	.ioctl =		snd_pcm_lib_ioctl,
1381 	.hw_params =		snd_emu10k1_playback_hw_params,
1382 	.hw_free =		snd_emu10k1_efx_playback_hw_free,
1383 	.prepare =		snd_emu10k1_efx_playback_prepare,
1384 	.trigger =		snd_emu10k1_efx_playback_trigger,
1385 	.pointer =		snd_emu10k1_efx_playback_pointer,
1386 	.page =			snd_pcm_sgbuf_ops_page,
1387 };
1388 
1389 int __devinit snd_emu10k1_pcm(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1390 {
1391 	struct snd_pcm *pcm;
1392 	struct snd_pcm_substream *substream;
1393 	int err;
1394 
1395 	if (rpcm)
1396 		*rpcm = NULL;
1397 
1398 	if ((err = snd_pcm_new(emu->card, "emu10k1", device, 32, 1, &pcm)) < 0)
1399 		return err;
1400 
1401 	pcm->private_data = emu;
1402 
1403 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_playback_ops);
1404 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_ops);
1405 
1406 	pcm->info_flags = 0;
1407 	pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1408 	strcpy(pcm->name, "ADC Capture/Standard PCM Playback");
1409 	emu->pcm = pcm;
1410 
1411 	for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1412 		if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
1413 			return err;
1414 
1415 	for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substream->next)
1416 		snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1417 
1418 	if (rpcm)
1419 		*rpcm = pcm;
1420 
1421 	return 0;
1422 }
1423 
1424 int __devinit snd_emu10k1_pcm_multi(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1425 {
1426 	struct snd_pcm *pcm;
1427 	struct snd_pcm_substream *substream;
1428 	int err;
1429 
1430 	if (rpcm)
1431 		*rpcm = NULL;
1432 
1433 	if ((err = snd_pcm_new(emu->card, "emu10k1", device, 1, 0, &pcm)) < 0)
1434 		return err;
1435 
1436 	pcm->private_data = emu;
1437 
1438 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_efx_playback_ops);
1439 
1440 	pcm->info_flags = 0;
1441 	pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1442 	strcpy(pcm->name, "Multichannel Playback");
1443 	emu->pcm_multi = pcm;
1444 
1445 	for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
1446 		if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
1447 			return err;
1448 
1449 	if (rpcm)
1450 		*rpcm = pcm;
1451 
1452 	return 0;
1453 }
1454 
1455 
1456 static struct snd_pcm_ops snd_emu10k1_capture_mic_ops = {
1457 	.open =			snd_emu10k1_capture_mic_open,
1458 	.close =		snd_emu10k1_capture_mic_close,
1459 	.ioctl =		snd_pcm_lib_ioctl,
1460 	.hw_params =		snd_emu10k1_capture_hw_params,
1461 	.hw_free =		snd_emu10k1_capture_hw_free,
1462 	.prepare =		snd_emu10k1_capture_prepare,
1463 	.trigger =		snd_emu10k1_capture_trigger,
1464 	.pointer =		snd_emu10k1_capture_pointer,
1465 };
1466 
1467 int __devinit snd_emu10k1_pcm_mic(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1468 {
1469 	struct snd_pcm *pcm;
1470 	int err;
1471 
1472 	if (rpcm)
1473 		*rpcm = NULL;
1474 
1475 	if ((err = snd_pcm_new(emu->card, "emu10k1 mic", device, 0, 1, &pcm)) < 0)
1476 		return err;
1477 
1478 	pcm->private_data = emu;
1479 
1480 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_mic_ops);
1481 
1482 	pcm->info_flags = 0;
1483 	strcpy(pcm->name, "Mic Capture");
1484 	emu->pcm_mic = pcm;
1485 
1486 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1487 
1488 	if (rpcm)
1489 		*rpcm = pcm;
1490 	return 0;
1491 }
1492 
1493 static int snd_emu10k1_pcm_efx_voices_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1494 {
1495 	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1496 	int nefx = emu->audigy ? 64 : 32;
1497 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1498 	uinfo->count = nefx;
1499 	uinfo->value.integer.min = 0;
1500 	uinfo->value.integer.max = 1;
1501 	return 0;
1502 }
1503 
1504 static int snd_emu10k1_pcm_efx_voices_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1505 {
1506 	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1507 	int nefx = emu->audigy ? 64 : 32;
1508 	int idx;
1509 
1510 	spin_lock_irq(&emu->reg_lock);
1511 	for (idx = 0; idx < nefx; idx++)
1512 		ucontrol->value.integer.value[idx] = (emu->efx_voices_mask[idx / 32] & (1 << (idx % 32))) ? 1 : 0;
1513 	spin_unlock_irq(&emu->reg_lock);
1514 	return 0;
1515 }
1516 
1517 static int snd_emu10k1_pcm_efx_voices_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1518 {
1519 	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
1520 	unsigned int nval[2], bits;
1521 	int nefx = emu->audigy ? 64 : 32;
1522 	int nefxb = emu->audigy ? 7 : 6;
1523 	int change, idx;
1524 
1525 	nval[0] = nval[1] = 0;
1526 	for (idx = 0, bits = 0; idx < nefx; idx++)
1527 		if (ucontrol->value.integer.value[idx]) {
1528 			nval[idx / 32] |= 1 << (idx % 32);
1529 			bits++;
1530 		}
1531 
1532 	for (idx = 0; idx < nefxb; idx++)
1533 		if (1 << idx == bits)
1534 			break;
1535 
1536 	if (idx >= nefxb)
1537 		return -EINVAL;
1538 
1539 	spin_lock_irq(&emu->reg_lock);
1540 	change = (nval[0] != emu->efx_voices_mask[0]) ||
1541 		(nval[1] != emu->efx_voices_mask[1]);
1542 	emu->efx_voices_mask[0] = nval[0];
1543 	emu->efx_voices_mask[1] = nval[1];
1544 	spin_unlock_irq(&emu->reg_lock);
1545 	return change;
1546 }
1547 
1548 static struct snd_kcontrol_new snd_emu10k1_pcm_efx_voices_mask = {
1549 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
1550 	.name = "Captured FX8010 Outputs",
1551 	.info = snd_emu10k1_pcm_efx_voices_mask_info,
1552 	.get = snd_emu10k1_pcm_efx_voices_mask_get,
1553 	.put = snd_emu10k1_pcm_efx_voices_mask_put
1554 };
1555 
1556 static struct snd_pcm_ops snd_emu10k1_capture_efx_ops = {
1557 	.open =			snd_emu10k1_capture_efx_open,
1558 	.close =		snd_emu10k1_capture_efx_close,
1559 	.ioctl =		snd_pcm_lib_ioctl,
1560 	.hw_params =		snd_emu10k1_capture_hw_params,
1561 	.hw_free =		snd_emu10k1_capture_hw_free,
1562 	.prepare =		snd_emu10k1_capture_prepare,
1563 	.trigger =		snd_emu10k1_capture_trigger,
1564 	.pointer =		snd_emu10k1_capture_pointer,
1565 };
1566 
1567 
1568 /* EFX playback */
1569 
1570 #define INITIAL_TRAM_SHIFT     14
1571 #define INITIAL_TRAM_POS(size) ((((size) / 2) - INITIAL_TRAM_SHIFT) - 1)
1572 
1573 static void snd_emu10k1_fx8010_playback_irq(struct snd_emu10k1 *emu, void *private_data)
1574 {
1575 	struct snd_pcm_substream *substream = private_data;
1576 	snd_pcm_period_elapsed(substream);
1577 }
1578 
1579 static void snd_emu10k1_fx8010_playback_tram_poke1(unsigned short *dst_left,
1580 						   unsigned short *dst_right,
1581 						   unsigned short *src,
1582 						   unsigned int count,
1583 						   unsigned int tram_shift)
1584 {
1585 	/*
1586 	printk(KERN_DEBUG "tram_poke1: dst_left = 0x%p, dst_right = 0x%p, "
1587 	       "src = 0x%p, count = 0x%x\n",
1588 	       dst_left, dst_right, src, count);
1589 	*/
1590 	if ((tram_shift & 1) == 0) {
1591 		while (count--) {
1592 			*dst_left-- = *src++;
1593 			*dst_right-- = *src++;
1594 		}
1595 	} else {
1596 		while (count--) {
1597 			*dst_right-- = *src++;
1598 			*dst_left-- = *src++;
1599 		}
1600 	}
1601 }
1602 
1603 static void fx8010_pb_trans_copy(struct snd_pcm_substream *substream,
1604 				 struct snd_pcm_indirect *rec, size_t bytes)
1605 {
1606 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1607 	struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1608 	unsigned int tram_size = pcm->buffer_size;
1609 	unsigned short *src = (unsigned short *)(substream->runtime->dma_area + rec->sw_data);
1610 	unsigned int frames = bytes >> 2, count;
1611 	unsigned int tram_pos = pcm->tram_pos;
1612 	unsigned int tram_shift = pcm->tram_shift;
1613 
1614 	while (frames > tram_pos) {
1615 		count = tram_pos + 1;
1616 		snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1617 						       (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1618 						       src, count, tram_shift);
1619 		src += count * 2;
1620 		frames -= count;
1621 		tram_pos = (tram_size / 2) - 1;
1622 		tram_shift++;
1623 	}
1624 	snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
1625 					       (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
1626 					       src, frames, tram_shift);
1627 	tram_pos -= frames;
1628 	pcm->tram_pos = tram_pos;
1629 	pcm->tram_shift = tram_shift;
1630 }
1631 
1632 static int snd_emu10k1_fx8010_playback_transfer(struct snd_pcm_substream *substream)
1633 {
1634 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1635 	struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1636 
1637 	snd_pcm_indirect_playback_transfer(substream, &pcm->pcm_rec, fx8010_pb_trans_copy);
1638 	return 0;
1639 }
1640 
1641 static int snd_emu10k1_fx8010_playback_hw_params(struct snd_pcm_substream *substream,
1642 						 struct snd_pcm_hw_params *hw_params)
1643 {
1644 	return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1645 }
1646 
1647 static int snd_emu10k1_fx8010_playback_hw_free(struct snd_pcm_substream *substream)
1648 {
1649 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1650 	struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1651 	unsigned int i;
1652 
1653 	for (i = 0; i < pcm->channels; i++)
1654 		snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, 0);
1655 	snd_pcm_lib_free_pages(substream);
1656 	return 0;
1657 }
1658 
1659 static int snd_emu10k1_fx8010_playback_prepare(struct snd_pcm_substream *substream)
1660 {
1661 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1662 	struct snd_pcm_runtime *runtime = substream->runtime;
1663 	struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1664 	unsigned int i;
1665 
1666 	/*
1667 	printk(KERN_DEBUG "prepare: etram_pages = 0x%p, dma_area = 0x%x, "
1668 	       "buffer_size = 0x%x (0x%x)\n",
1669 	       emu->fx8010.etram_pages, runtime->dma_area,
1670 	       runtime->buffer_size, runtime->buffer_size << 2);
1671 	*/
1672 	memset(&pcm->pcm_rec, 0, sizeof(pcm->pcm_rec));
1673 	pcm->pcm_rec.hw_buffer_size = pcm->buffer_size * 2; /* byte size */
1674 	pcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1675 	pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1676 	pcm->tram_shift = 0;
1677 	snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_running, 0, 0);	/* reset */
1678 	snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);	/* reset */
1679 	snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_size, 0, runtime->buffer_size);
1680 	snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_ptr, 0, 0);		/* reset ptr number */
1681 	snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_count, 0, runtime->period_size);
1682 	snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_tmpcount, 0, runtime->period_size);
1683 	for (i = 0; i < pcm->channels; i++)
1684 		snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, (TANKMEMADDRREG_READ|TANKMEMADDRREG_ALIGN) + i * (runtime->buffer_size / pcm->channels));
1685 	return 0;
1686 }
1687 
1688 static int snd_emu10k1_fx8010_playback_trigger(struct snd_pcm_substream *substream, int cmd)
1689 {
1690 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1691 	struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1692 	int result = 0;
1693 
1694 	spin_lock(&emu->reg_lock);
1695 	switch (cmd) {
1696 	case SNDRV_PCM_TRIGGER_START:
1697 		/* follow thru */
1698 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1699 	case SNDRV_PCM_TRIGGER_RESUME:
1700 #ifdef EMU10K1_SET_AC3_IEC958
1701 	{
1702 		int i;
1703 		for (i = 0; i < 3; i++) {
1704 			unsigned int bits;
1705 			bits = SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1706 			       SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | SPCS_GENERATIONSTATUS |
1707 			       0x00001200 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT | SPCS_NOTAUDIODATA;
1708 			snd_emu10k1_ptr_write(emu, SPCS0 + i, 0, bits);
1709 		}
1710 	}
1711 #endif
1712 		result = snd_emu10k1_fx8010_register_irq_handler(emu, snd_emu10k1_fx8010_playback_irq, pcm->gpr_running, substream, &pcm->irq);
1713 		if (result < 0)
1714 			goto __err;
1715 		snd_emu10k1_fx8010_playback_transfer(substream);	/* roll the ball */
1716 		snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 1);
1717 		break;
1718 	case SNDRV_PCM_TRIGGER_STOP:
1719 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1720 	case SNDRV_PCM_TRIGGER_SUSPEND:
1721 		snd_emu10k1_fx8010_unregister_irq_handler(emu, pcm->irq); pcm->irq = NULL;
1722 		snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);
1723 		pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
1724 		pcm->tram_shift = 0;
1725 		break;
1726 	default:
1727 		result = -EINVAL;
1728 		break;
1729 	}
1730       __err:
1731 	spin_unlock(&emu->reg_lock);
1732 	return result;
1733 }
1734 
1735 static snd_pcm_uframes_t snd_emu10k1_fx8010_playback_pointer(struct snd_pcm_substream *substream)
1736 {
1737 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1738 	struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1739 	size_t ptr; /* byte pointer */
1740 
1741 	if (!snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_trigger, 0))
1742 		return 0;
1743 	ptr = snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_ptr, 0) << 2;
1744 	return snd_pcm_indirect_playback_pointer(substream, &pcm->pcm_rec, ptr);
1745 }
1746 
1747 static struct snd_pcm_hardware snd_emu10k1_fx8010_playback =
1748 {
1749 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1750 				 SNDRV_PCM_INFO_RESUME |
1751 				 /* SNDRV_PCM_INFO_MMAP_VALID | */ SNDRV_PCM_INFO_PAUSE),
1752 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1753 	.rates =		SNDRV_PCM_RATE_48000,
1754 	.rate_min =		48000,
1755 	.rate_max =		48000,
1756 	.channels_min =		1,
1757 	.channels_max =		1,
1758 	.buffer_bytes_max =	(128*1024),
1759 	.period_bytes_min =	1024,
1760 	.period_bytes_max =	(128*1024),
1761 	.periods_min =		2,
1762 	.periods_max =		1024,
1763 	.fifo_size =		0,
1764 };
1765 
1766 static int snd_emu10k1_fx8010_playback_open(struct snd_pcm_substream *substream)
1767 {
1768 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1769 	struct snd_pcm_runtime *runtime = substream->runtime;
1770 	struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1771 
1772 	runtime->hw = snd_emu10k1_fx8010_playback;
1773 	runtime->hw.channels_min = runtime->hw.channels_max = pcm->channels;
1774 	runtime->hw.period_bytes_max = (pcm->buffer_size * 2) / 2;
1775 	spin_lock_irq(&emu->reg_lock);
1776 	if (pcm->valid == 0) {
1777 		spin_unlock_irq(&emu->reg_lock);
1778 		return -ENODEV;
1779 	}
1780 	pcm->opened = 1;
1781 	spin_unlock_irq(&emu->reg_lock);
1782 	return 0;
1783 }
1784 
1785 static int snd_emu10k1_fx8010_playback_close(struct snd_pcm_substream *substream)
1786 {
1787 	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
1788 	struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
1789 
1790 	spin_lock_irq(&emu->reg_lock);
1791 	pcm->opened = 0;
1792 	spin_unlock_irq(&emu->reg_lock);
1793 	return 0;
1794 }
1795 
1796 static struct snd_pcm_ops snd_emu10k1_fx8010_playback_ops = {
1797 	.open =			snd_emu10k1_fx8010_playback_open,
1798 	.close =		snd_emu10k1_fx8010_playback_close,
1799 	.ioctl =		snd_pcm_lib_ioctl,
1800 	.hw_params =		snd_emu10k1_fx8010_playback_hw_params,
1801 	.hw_free =		snd_emu10k1_fx8010_playback_hw_free,
1802 	.prepare =		snd_emu10k1_fx8010_playback_prepare,
1803 	.trigger =		snd_emu10k1_fx8010_playback_trigger,
1804 	.pointer =		snd_emu10k1_fx8010_playback_pointer,
1805 	.ack =			snd_emu10k1_fx8010_playback_transfer,
1806 };
1807 
1808 int __devinit snd_emu10k1_pcm_efx(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
1809 {
1810 	struct snd_pcm *pcm;
1811 	struct snd_kcontrol *kctl;
1812 	int err;
1813 
1814 	if (rpcm)
1815 		*rpcm = NULL;
1816 
1817 	if ((err = snd_pcm_new(emu->card, "emu10k1 efx", device, 8, 1, &pcm)) < 0)
1818 		return err;
1819 
1820 	pcm->private_data = emu;
1821 
1822 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_fx8010_playback_ops);
1823 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_efx_ops);
1824 
1825 	pcm->info_flags = 0;
1826 	strcpy(pcm->name, "Multichannel Capture/PT Playback");
1827 	emu->pcm_efx = pcm;
1828 	if (rpcm)
1829 		*rpcm = pcm;
1830 
1831 	/* EFX capture - record the "FXBUS2" channels, by default we connect the EXTINs
1832 	 * to these
1833 	 */
1834 
1835 	/* emu->efx_voices_mask[0] = FXWC_DEFAULTROUTE_C | FXWC_DEFAULTROUTE_A; */
1836 	if (emu->audigy) {
1837 		emu->efx_voices_mask[0] = 0;
1838 		if (emu->card_capabilities->emu_model)
1839 			/* Pavel Hofman - 32 voices will be used for
1840 			 * capture (write mode) -
1841 			 * each bit = corresponding voice
1842 			 */
1843 			emu->efx_voices_mask[1] = 0xffffffff;
1844 		else
1845 			emu->efx_voices_mask[1] = 0xffff;
1846 	} else {
1847 		emu->efx_voices_mask[0] = 0xffff0000;
1848 		emu->efx_voices_mask[1] = 0;
1849 	}
1850 	/* For emu1010, the control has to set 32 upper bits (voices)
1851 	 * out of the 64 bits (voices) to true for the 16-channels capture
1852 	 * to work correctly. Correct A_FXWC2 initial value (0xffffffff)
1853 	 * is already defined but the snd_emu10k1_pcm_efx_voices_mask
1854 	 * control can override this register's value.
1855 	 */
1856 	kctl = snd_ctl_new1(&snd_emu10k1_pcm_efx_voices_mask, emu);
1857 	if (!kctl)
1858 		return -ENOMEM;
1859 	kctl->id.device = device;
1860 	snd_ctl_add(emu->card, kctl);
1861 
1862 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
1863 
1864 	return 0;
1865 }
1866