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
37static 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
55static 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
67static 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
79static 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
91static 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
108static 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
166static 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
177static struct snd_pcm_hw_constraint_list hw_constraints_capture_period_sizes = {
178	.count = 31,
179	.list = capture_period_sizes,
180	.mask = 0
181};
182
183static unsigned int capture_rates[8] = {
184	8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000
185};
186
187static struct snd_pcm_hw_constraint_list hw_constraints_capture_rates = {
188	.count = 8,
189	.list = capture_rates,
190	.mask = 0
191};
192
193static 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
210static 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
228static 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
244static 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 */
272static 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
281static 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
407static 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
435static 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
465static 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
494static 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
522static 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
558static 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
578static 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
584static int snd_emu10k1_capture_hw_free(struct snd_pcm_substream *substream)
585{
586	return snd_pcm_lib_free_pages(substream);
587}
588
589static 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
636static 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
671static 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
696static 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
721static 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
737static 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
754static 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
802static 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
868static 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
901static 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
952static 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
973static 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
997static 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
1017static 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
1043static 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
1058static 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
1065static 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
1072static void snd_emu10k1_pcm_free_substream(struct snd_pcm_runtime *runtime)
1073{
1074	kfree(runtime->private_data);
1075}
1076
1077static 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
1091static 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
1124static 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
1161static 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
1171static 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
1198static 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
1207static 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
1236static 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
1245static 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
1344static 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
1353static 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
1365static 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 */
1377static 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
1389int __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
1424int __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
1456static 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
1467int __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
1493static 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
1504static 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
1517static 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
1548static 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
1556static 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
1573static 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
1579static 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
1603static 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
1632static 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
1641static 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
1647static 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
1659static 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
1688static 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
1735static 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
1747static 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
1766static 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
1785static 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
1796static 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
1808int __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