1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *  Maintained by Jaroslav Kysela <perex@perex.cz>
4 *  Originated by audio@tridentmicro.com
5 *  Fri Feb 19 15:55:28 MST 1999
6 *  Routines for control of Trident 4DWave (DX and NX) chip
7 *
8 *  BUGS:
9 *
10 *  TODO:
11 *    ---
12 *
13 *  SiS7018 S/PDIF support by Thomas Winischhofer <thomas@winischhofer.net>
14 */
15
16#include <linux/delay.h>
17#include <linux/init.h>
18#include <linux/interrupt.h>
19#include <linux/pci.h>
20#include <linux/slab.h>
21#include <linux/vmalloc.h>
22#include <linux/gameport.h>
23#include <linux/dma-mapping.h>
24#include <linux/export.h>
25#include <linux/io.h>
26
27#include <sound/core.h>
28#include <sound/info.h>
29#include <sound/control.h>
30#include <sound/tlv.h>
31#include "trident.h"
32#include <sound/asoundef.h>
33
34static int snd_trident_pcm_mixer_build(struct snd_trident *trident,
35				       struct snd_trident_voice * voice,
36				       struct snd_pcm_substream *substream);
37static int snd_trident_pcm_mixer_free(struct snd_trident *trident,
38				      struct snd_trident_voice * voice,
39				      struct snd_pcm_substream *substream);
40static irqreturn_t snd_trident_interrupt(int irq, void *dev_id);
41static int snd_trident_sis_reset(struct snd_trident *trident);
42
43static void snd_trident_clear_voices(struct snd_trident * trident,
44				     unsigned short v_min, unsigned short v_max);
45static void snd_trident_free(struct snd_card *card);
46
47/*
48 *  common I/O routines
49 */
50
51
52#if 0
53static void snd_trident_print_voice_regs(struct snd_trident *trident, int voice)
54{
55	unsigned int val, tmp;
56
57	dev_dbg(trident->card->dev, "Trident voice %i:\n", voice);
58	outb(voice, TRID_REG(trident, T4D_LFO_GC_CIR));
59	val = inl(TRID_REG(trident, CH_LBA));
60	dev_dbg(trident->card->dev, "LBA: 0x%x\n", val);
61	val = inl(TRID_REG(trident, CH_GVSEL_PAN_VOL_CTRL_EC));
62	dev_dbg(trident->card->dev, "GVSel: %i\n", val >> 31);
63	dev_dbg(trident->card->dev, "Pan: 0x%x\n", (val >> 24) & 0x7f);
64	dev_dbg(trident->card->dev, "Vol: 0x%x\n", (val >> 16) & 0xff);
65	dev_dbg(trident->card->dev, "CTRL: 0x%x\n", (val >> 12) & 0x0f);
66	dev_dbg(trident->card->dev, "EC: 0x%x\n", val & 0x0fff);
67	if (trident->device != TRIDENT_DEVICE_ID_NX) {
68		val = inl(TRID_REG(trident, CH_DX_CSO_ALPHA_FMS));
69		dev_dbg(trident->card->dev, "CSO: 0x%x\n", val >> 16);
70		dev_dbg(trident->card->dev, "Alpha: 0x%x\n", (val >> 4) & 0x0fff);
71		dev_dbg(trident->card->dev, "FMS: 0x%x\n", val & 0x0f);
72		val = inl(TRID_REG(trident, CH_DX_ESO_DELTA));
73		dev_dbg(trident->card->dev, "ESO: 0x%x\n", val >> 16);
74		dev_dbg(trident->card->dev, "Delta: 0x%x\n", val & 0xffff);
75		val = inl(TRID_REG(trident, CH_DX_FMC_RVOL_CVOL));
76	} else {		// TRIDENT_DEVICE_ID_NX
77		val = inl(TRID_REG(trident, CH_NX_DELTA_CSO));
78		tmp = (val >> 24) & 0xff;
79		dev_dbg(trident->card->dev, "CSO: 0x%x\n", val & 0x00ffffff);
80		val = inl(TRID_REG(trident, CH_NX_DELTA_ESO));
81		tmp |= (val >> 16) & 0xff00;
82		dev_dbg(trident->card->dev, "Delta: 0x%x\n", tmp);
83		dev_dbg(trident->card->dev, "ESO: 0x%x\n", val & 0x00ffffff);
84		val = inl(TRID_REG(trident, CH_NX_ALPHA_FMS_FMC_RVOL_CVOL));
85		dev_dbg(trident->card->dev, "Alpha: 0x%x\n", val >> 20);
86		dev_dbg(trident->card->dev, "FMS: 0x%x\n", (val >> 16) & 0x0f);
87	}
88	dev_dbg(trident->card->dev, "FMC: 0x%x\n", (val >> 14) & 3);
89	dev_dbg(trident->card->dev, "RVol: 0x%x\n", (val >> 7) & 0x7f);
90	dev_dbg(trident->card->dev, "CVol: 0x%x\n", val & 0x7f);
91}
92#endif
93
94/*---------------------------------------------------------------------------
95   unsigned short snd_trident_codec_read(struct snd_ac97 *ac97, unsigned short reg)
96
97   Description: This routine will do all of the reading from the external
98                CODEC (AC97).
99
100   Parameters:  ac97 - ac97 codec structure
101                reg - CODEC register index, from AC97 Hal.
102
103   returns:     16 bit value read from the AC97.
104
105  ---------------------------------------------------------------------------*/
106static unsigned short snd_trident_codec_read(struct snd_ac97 *ac97, unsigned short reg)
107{
108	unsigned int data = 0, treg;
109	unsigned short count = 0xffff;
110	unsigned long flags;
111	struct snd_trident *trident = ac97->private_data;
112
113	spin_lock_irqsave(&trident->reg_lock, flags);
114	if (trident->device == TRIDENT_DEVICE_ID_DX) {
115		data = (DX_AC97_BUSY_READ | (reg & 0x000000ff));
116		outl(data, TRID_REG(trident, DX_ACR1_AC97_R));
117		do {
118			data = inl(TRID_REG(trident, DX_ACR1_AC97_R));
119			if ((data & DX_AC97_BUSY_READ) == 0)
120				break;
121		} while (--count);
122	} else if (trident->device == TRIDENT_DEVICE_ID_NX) {
123		data = (NX_AC97_BUSY_READ | (reg & 0x000000ff));
124		treg = ac97->num == 0 ? NX_ACR2_AC97_R_PRIMARY : NX_ACR3_AC97_R_SECONDARY;
125		outl(data, TRID_REG(trident, treg));
126		do {
127			data = inl(TRID_REG(trident, treg));
128			if ((data & 0x00000C00) == 0)
129				break;
130		} while (--count);
131	} else if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
132		data = SI_AC97_BUSY_READ | SI_AC97_AUDIO_BUSY | (reg & 0x000000ff);
133		if (ac97->num == 1)
134			data |= SI_AC97_SECONDARY;
135		outl(data, TRID_REG(trident, SI_AC97_READ));
136		do {
137			data = inl(TRID_REG(trident, SI_AC97_READ));
138			if ((data & (SI_AC97_BUSY_READ)) == 0)
139				break;
140		} while (--count);
141	}
142
143	if (count == 0 && !trident->ac97_detect) {
144		dev_err(trident->card->dev,
145			"ac97 codec read TIMEOUT [0x%x/0x%x]!!!\n",
146			   reg, data);
147		data = 0;
148	}
149
150	spin_unlock_irqrestore(&trident->reg_lock, flags);
151	return ((unsigned short) (data >> 16));
152}
153
154/*---------------------------------------------------------------------------
155   void snd_trident_codec_write(struct snd_ac97 *ac97, unsigned short reg,
156   unsigned short wdata)
157
158   Description: This routine will do all of the writing to the external
159                CODEC (AC97).
160
161   Parameters:	ac97 - ac97 codec structure
162   	        reg - CODEC register index, from AC97 Hal.
163                data  - Lower 16 bits are the data to write to CODEC.
164
165   returns:     TRUE if everything went ok, else FALSE.
166
167  ---------------------------------------------------------------------------*/
168static void snd_trident_codec_write(struct snd_ac97 *ac97, unsigned short reg,
169				    unsigned short wdata)
170{
171	unsigned int address, data;
172	unsigned short count = 0xffff;
173	unsigned long flags;
174	struct snd_trident *trident = ac97->private_data;
175
176	data = ((unsigned long) wdata) << 16;
177
178	spin_lock_irqsave(&trident->reg_lock, flags);
179	if (trident->device == TRIDENT_DEVICE_ID_DX) {
180		address = DX_ACR0_AC97_W;
181
182		/* read AC-97 write register status */
183		do {
184			if ((inw(TRID_REG(trident, address)) & DX_AC97_BUSY_WRITE) == 0)
185				break;
186		} while (--count);
187
188		data |= (DX_AC97_BUSY_WRITE | (reg & 0x000000ff));
189	} else if (trident->device == TRIDENT_DEVICE_ID_NX) {
190		address = NX_ACR1_AC97_W;
191
192		/* read AC-97 write register status */
193		do {
194			if ((inw(TRID_REG(trident, address)) & NX_AC97_BUSY_WRITE) == 0)
195				break;
196		} while (--count);
197
198		data |= (NX_AC97_BUSY_WRITE | (ac97->num << 8) | (reg & 0x000000ff));
199	} else if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
200		address = SI_AC97_WRITE;
201
202		/* read AC-97 write register status */
203		do {
204			if ((inw(TRID_REG(trident, address)) & (SI_AC97_BUSY_WRITE)) == 0)
205				break;
206		} while (--count);
207
208		data |= SI_AC97_BUSY_WRITE | SI_AC97_AUDIO_BUSY | (reg & 0x000000ff);
209		if (ac97->num == 1)
210			data |= SI_AC97_SECONDARY;
211	} else {
212		address = 0;	/* keep GCC happy */
213		count = 0;	/* return */
214	}
215
216	if (count == 0) {
217		spin_unlock_irqrestore(&trident->reg_lock, flags);
218		return;
219	}
220	outl(data, TRID_REG(trident, address));
221	spin_unlock_irqrestore(&trident->reg_lock, flags);
222}
223
224/*---------------------------------------------------------------------------
225   void snd_trident_enable_eso(struct snd_trident *trident)
226
227   Description: This routine will enable end of loop interrupts.
228                End of loop interrupts will occur when a running
229                channel reaches ESO.
230                Also enables middle of loop interrupts.
231
232   Parameters:  trident - pointer to target device class for 4DWave.
233
234  ---------------------------------------------------------------------------*/
235
236static void snd_trident_enable_eso(struct snd_trident * trident)
237{
238	unsigned int val;
239
240	val = inl(TRID_REG(trident, T4D_LFO_GC_CIR));
241	val |= ENDLP_IE;
242	val |= MIDLP_IE;
243	if (trident->device == TRIDENT_DEVICE_ID_SI7018)
244		val |= BANK_B_EN;
245	outl(val, TRID_REG(trident, T4D_LFO_GC_CIR));
246}
247
248/*---------------------------------------------------------------------------
249   void snd_trident_disable_eso(struct snd_trident *trident)
250
251   Description: This routine will disable end of loop interrupts.
252                End of loop interrupts will occur when a running
253                channel reaches ESO.
254                Also disables middle of loop interrupts.
255
256   Parameters:
257                trident - pointer to target device class for 4DWave.
258
259   returns:     TRUE if everything went ok, else FALSE.
260
261  ---------------------------------------------------------------------------*/
262
263static void snd_trident_disable_eso(struct snd_trident * trident)
264{
265	unsigned int tmp;
266
267	tmp = inl(TRID_REG(trident, T4D_LFO_GC_CIR));
268	tmp &= ~ENDLP_IE;
269	tmp &= ~MIDLP_IE;
270	outl(tmp, TRID_REG(trident, T4D_LFO_GC_CIR));
271}
272
273/*---------------------------------------------------------------------------
274   void snd_trident_start_voice(struct snd_trident * trident, unsigned int voice)
275
276    Description: Start a voice, any channel 0 thru 63.
277                 This routine automatically handles the fact that there are
278                 more than 32 channels available.
279
280    Parameters : voice - Voice number 0 thru n.
281                 trident - pointer to target device class for 4DWave.
282
283    Return Value: None.
284
285  ---------------------------------------------------------------------------*/
286
287void snd_trident_start_voice(struct snd_trident * trident, unsigned int voice)
288{
289	unsigned int mask = 1 << (voice & 0x1f);
290	unsigned int reg = (voice & 0x20) ? T4D_START_B : T4D_START_A;
291
292	outl(mask, TRID_REG(trident, reg));
293}
294
295EXPORT_SYMBOL(snd_trident_start_voice);
296
297/*---------------------------------------------------------------------------
298   void snd_trident_stop_voice(struct snd_trident * trident, unsigned int voice)
299
300    Description: Stop a voice, any channel 0 thru 63.
301                 This routine automatically handles the fact that there are
302                 more than 32 channels available.
303
304    Parameters : voice - Voice number 0 thru n.
305                 trident - pointer to target device class for 4DWave.
306
307    Return Value: None.
308
309  ---------------------------------------------------------------------------*/
310
311void snd_trident_stop_voice(struct snd_trident * trident, unsigned int voice)
312{
313	unsigned int mask = 1 << (voice & 0x1f);
314	unsigned int reg = (voice & 0x20) ? T4D_STOP_B : T4D_STOP_A;
315
316	outl(mask, TRID_REG(trident, reg));
317}
318
319EXPORT_SYMBOL(snd_trident_stop_voice);
320
321/*---------------------------------------------------------------------------
322    int snd_trident_allocate_pcm_channel(struct snd_trident *trident)
323
324    Description: Allocate hardware channel in Bank B (32-63).
325
326    Parameters :  trident - pointer to target device class for 4DWave.
327
328    Return Value: hardware channel - 32-63 or -1 when no channel is available
329
330  ---------------------------------------------------------------------------*/
331
332static int snd_trident_allocate_pcm_channel(struct snd_trident * trident)
333{
334	int idx;
335
336	if (trident->ChanPCMcnt >= trident->ChanPCM)
337		return -1;
338	for (idx = 31; idx >= 0; idx--) {
339		if (!(trident->ChanMap[T4D_BANK_B] & (1 << idx))) {
340			trident->ChanMap[T4D_BANK_B] |= 1 << idx;
341			trident->ChanPCMcnt++;
342			return idx + 32;
343		}
344	}
345	return -1;
346}
347
348/*---------------------------------------------------------------------------
349    void snd_trident_free_pcm_channel(int channel)
350
351    Description: Free hardware channel in Bank B (32-63)
352
353    Parameters :  trident - pointer to target device class for 4DWave.
354	          channel - hardware channel number 0-63
355
356    Return Value: none
357
358  ---------------------------------------------------------------------------*/
359
360static void snd_trident_free_pcm_channel(struct snd_trident *trident, int channel)
361{
362	if (channel < 32 || channel > 63)
363		return;
364	channel &= 0x1f;
365	if (trident->ChanMap[T4D_BANK_B] & (1 << channel)) {
366		trident->ChanMap[T4D_BANK_B] &= ~(1 << channel);
367		trident->ChanPCMcnt--;
368	}
369}
370
371/*---------------------------------------------------------------------------
372    unsigned int snd_trident_allocate_synth_channel(void)
373
374    Description: Allocate hardware channel in Bank A (0-31).
375
376    Parameters :  trident - pointer to target device class for 4DWave.
377
378    Return Value: hardware channel - 0-31 or -1 when no channel is available
379
380  ---------------------------------------------------------------------------*/
381
382static int snd_trident_allocate_synth_channel(struct snd_trident * trident)
383{
384	int idx;
385
386	for (idx = 31; idx >= 0; idx--) {
387		if (!(trident->ChanMap[T4D_BANK_A] & (1 << idx))) {
388			trident->ChanMap[T4D_BANK_A] |= 1 << idx;
389			trident->synth.ChanSynthCount++;
390			return idx;
391		}
392	}
393	return -1;
394}
395
396/*---------------------------------------------------------------------------
397    void snd_trident_free_synth_channel( int channel )
398
399    Description: Free hardware channel in Bank B (0-31).
400
401    Parameters :  trident - pointer to target device class for 4DWave.
402	          channel - hardware channel number 0-63
403
404    Return Value: none
405
406  ---------------------------------------------------------------------------*/
407
408static void snd_trident_free_synth_channel(struct snd_trident *trident, int channel)
409{
410	if (channel < 0 || channel > 31)
411		return;
412	channel &= 0x1f;
413	if (trident->ChanMap[T4D_BANK_A] & (1 << channel)) {
414		trident->ChanMap[T4D_BANK_A] &= ~(1 << channel);
415		trident->synth.ChanSynthCount--;
416	}
417}
418
419/*---------------------------------------------------------------------------
420   snd_trident_write_voice_regs
421
422   Description: This routine will complete and write the 5 hardware channel
423                registers to hardware.
424
425   Parameters:  trident - pointer to target device class for 4DWave.
426                voice - synthesizer voice structure
427                Each register field.
428
429  ---------------------------------------------------------------------------*/
430
431void snd_trident_write_voice_regs(struct snd_trident * trident,
432				  struct snd_trident_voice * voice)
433{
434	unsigned int FmcRvolCvol;
435	unsigned int regs[5];
436
437	regs[1] = voice->LBA;
438	regs[4] = (voice->GVSel << 31) |
439		  ((voice->Pan & 0x0000007f) << 24) |
440		  ((voice->CTRL & 0x0000000f) << 12);
441	FmcRvolCvol = ((voice->FMC & 3) << 14) |
442	              ((voice->RVol & 0x7f) << 7) |
443	              (voice->CVol & 0x7f);
444
445	switch (trident->device) {
446	case TRIDENT_DEVICE_ID_SI7018:
447		regs[4] |= voice->number > 31 ?
448				(voice->Vol & 0x000003ff) :
449				((voice->Vol & 0x00003fc) << (16-2)) |
450				(voice->EC & 0x00000fff);
451		regs[0] = (voice->CSO << 16) | ((voice->Alpha & 0x00000fff) << 4) |
452			(voice->FMS & 0x0000000f);
453		regs[2] = (voice->ESO << 16) | (voice->Delta & 0x0ffff);
454		regs[3] = (voice->Attribute << 16) | FmcRvolCvol;
455		break;
456	case TRIDENT_DEVICE_ID_DX:
457		regs[4] |= ((voice->Vol & 0x000003fc) << (16-2)) |
458			   (voice->EC & 0x00000fff);
459		regs[0] = (voice->CSO << 16) | ((voice->Alpha & 0x00000fff) << 4) |
460			(voice->FMS & 0x0000000f);
461		regs[2] = (voice->ESO << 16) | (voice->Delta & 0x0ffff);
462		regs[3] = FmcRvolCvol;
463		break;
464	case TRIDENT_DEVICE_ID_NX:
465		regs[4] |= ((voice->Vol & 0x000003fc) << (16-2)) |
466			   (voice->EC & 0x00000fff);
467		regs[0] = (voice->Delta << 24) | (voice->CSO & 0x00ffffff);
468		regs[2] = ((voice->Delta << 16) & 0xff000000) |
469			(voice->ESO & 0x00ffffff);
470		regs[3] = (voice->Alpha << 20) |
471			((voice->FMS & 0x0000000f) << 16) | FmcRvolCvol;
472		break;
473	default:
474		snd_BUG();
475		return;
476	}
477
478	outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
479	outl(regs[0], TRID_REG(trident, CH_START + 0));
480	outl(regs[1], TRID_REG(trident, CH_START + 4));
481	outl(regs[2], TRID_REG(trident, CH_START + 8));
482	outl(regs[3], TRID_REG(trident, CH_START + 12));
483	outl(regs[4], TRID_REG(trident, CH_START + 16));
484
485#if 0
486	dev_dbg(trident->card->dev, "written %i channel:\n", voice->number);
487	dev_dbg(trident->card->dev, "  regs[0] = 0x%x/0x%x\n",
488	       regs[0], inl(TRID_REG(trident, CH_START + 0)));
489	dev_dbg(trident->card->dev, "  regs[1] = 0x%x/0x%x\n",
490	       regs[1], inl(TRID_REG(trident, CH_START + 4)));
491	dev_dbg(trident->card->dev, "  regs[2] = 0x%x/0x%x\n",
492	       regs[2], inl(TRID_REG(trident, CH_START + 8)));
493	dev_dbg(trident->card->dev, "  regs[3] = 0x%x/0x%x\n",
494	       regs[3], inl(TRID_REG(trident, CH_START + 12)));
495	dev_dbg(trident->card->dev, "  regs[4] = 0x%x/0x%x\n",
496	       regs[4], inl(TRID_REG(trident, CH_START + 16)));
497#endif
498}
499
500EXPORT_SYMBOL(snd_trident_write_voice_regs);
501
502/*---------------------------------------------------------------------------
503   snd_trident_write_cso_reg
504
505   Description: This routine will write the new CSO offset
506                register to hardware.
507
508   Parameters:  trident - pointer to target device class for 4DWave.
509                voice - synthesizer voice structure
510                CSO - new CSO value
511
512  ---------------------------------------------------------------------------*/
513
514static void snd_trident_write_cso_reg(struct snd_trident * trident,
515				      struct snd_trident_voice * voice,
516				      unsigned int CSO)
517{
518	voice->CSO = CSO;
519	outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
520	if (trident->device != TRIDENT_DEVICE_ID_NX) {
521		outw(voice->CSO, TRID_REG(trident, CH_DX_CSO_ALPHA_FMS) + 2);
522	} else {
523		outl((voice->Delta << 24) |
524		     (voice->CSO & 0x00ffffff), TRID_REG(trident, CH_NX_DELTA_CSO));
525	}
526}
527
528/*---------------------------------------------------------------------------
529   snd_trident_write_eso_reg
530
531   Description: This routine will write the new ESO offset
532                register to hardware.
533
534   Parameters:  trident - pointer to target device class for 4DWave.
535                voice - synthesizer voice structure
536                ESO - new ESO value
537
538  ---------------------------------------------------------------------------*/
539
540static void snd_trident_write_eso_reg(struct snd_trident * trident,
541				      struct snd_trident_voice * voice,
542				      unsigned int ESO)
543{
544	voice->ESO = ESO;
545	outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
546	if (trident->device != TRIDENT_DEVICE_ID_NX) {
547		outw(voice->ESO, TRID_REG(trident, CH_DX_ESO_DELTA) + 2);
548	} else {
549		outl(((voice->Delta << 16) & 0xff000000) | (voice->ESO & 0x00ffffff),
550		     TRID_REG(trident, CH_NX_DELTA_ESO));
551	}
552}
553
554/*---------------------------------------------------------------------------
555   snd_trident_write_vol_reg
556
557   Description: This routine will write the new voice volume
558                register to hardware.
559
560   Parameters:  trident - pointer to target device class for 4DWave.
561                voice - synthesizer voice structure
562                Vol - new voice volume
563
564  ---------------------------------------------------------------------------*/
565
566static void snd_trident_write_vol_reg(struct snd_trident * trident,
567				      struct snd_trident_voice * voice,
568				      unsigned int Vol)
569{
570	voice->Vol = Vol;
571	outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
572	switch (trident->device) {
573	case TRIDENT_DEVICE_ID_DX:
574	case TRIDENT_DEVICE_ID_NX:
575		outb(voice->Vol >> 2, TRID_REG(trident, CH_GVSEL_PAN_VOL_CTRL_EC + 2));
576		break;
577	case TRIDENT_DEVICE_ID_SI7018:
578		/* dev_dbg(trident->card->dev, "voice->Vol = 0x%x\n", voice->Vol); */
579		outw((voice->CTRL << 12) | voice->Vol,
580		     TRID_REG(trident, CH_GVSEL_PAN_VOL_CTRL_EC));
581		break;
582	}
583}
584
585/*---------------------------------------------------------------------------
586   snd_trident_write_pan_reg
587
588   Description: This routine will write the new voice pan
589                register to hardware.
590
591   Parameters:  trident - pointer to target device class for 4DWave.
592                voice - synthesizer voice structure
593                Pan - new pan value
594
595  ---------------------------------------------------------------------------*/
596
597static void snd_trident_write_pan_reg(struct snd_trident * trident,
598				      struct snd_trident_voice * voice,
599				      unsigned int Pan)
600{
601	voice->Pan = Pan;
602	outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
603	outb(((voice->GVSel & 0x01) << 7) | (voice->Pan & 0x7f),
604	     TRID_REG(trident, CH_GVSEL_PAN_VOL_CTRL_EC + 3));
605}
606
607/*---------------------------------------------------------------------------
608   snd_trident_write_rvol_reg
609
610   Description: This routine will write the new reverb volume
611                register to hardware.
612
613   Parameters:  trident - pointer to target device class for 4DWave.
614                voice - synthesizer voice structure
615                RVol - new reverb volume
616
617  ---------------------------------------------------------------------------*/
618
619static void snd_trident_write_rvol_reg(struct snd_trident * trident,
620				       struct snd_trident_voice * voice,
621				       unsigned int RVol)
622{
623	voice->RVol = RVol;
624	outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
625	outw(((voice->FMC & 0x0003) << 14) | ((voice->RVol & 0x007f) << 7) |
626	     (voice->CVol & 0x007f),
627	     TRID_REG(trident, trident->device == TRIDENT_DEVICE_ID_NX ?
628		      CH_NX_ALPHA_FMS_FMC_RVOL_CVOL : CH_DX_FMC_RVOL_CVOL));
629}
630
631/*---------------------------------------------------------------------------
632   snd_trident_write_cvol_reg
633
634   Description: This routine will write the new chorus volume
635                register to hardware.
636
637   Parameters:  trident - pointer to target device class for 4DWave.
638                voice - synthesizer voice structure
639                CVol - new chorus volume
640
641  ---------------------------------------------------------------------------*/
642
643static void snd_trident_write_cvol_reg(struct snd_trident * trident,
644				       struct snd_trident_voice * voice,
645				       unsigned int CVol)
646{
647	voice->CVol = CVol;
648	outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
649	outw(((voice->FMC & 0x0003) << 14) | ((voice->RVol & 0x007f) << 7) |
650	     (voice->CVol & 0x007f),
651	     TRID_REG(trident, trident->device == TRIDENT_DEVICE_ID_NX ?
652		      CH_NX_ALPHA_FMS_FMC_RVOL_CVOL : CH_DX_FMC_RVOL_CVOL));
653}
654
655/*---------------------------------------------------------------------------
656   snd_trident_convert_rate
657
658   Description: This routine converts rate in HZ to hardware delta value.
659
660   Parameters:  trident - pointer to target device class for 4DWave.
661                rate - Real or Virtual channel number.
662
663   Returns:     Delta value.
664
665  ---------------------------------------------------------------------------*/
666static unsigned int snd_trident_convert_rate(unsigned int rate)
667{
668	unsigned int delta;
669
670	// We special case 44100 and 8000 since rounding with the equation
671	// does not give us an accurate enough value. For 11025 and 22050
672	// the equation gives us the best answer. All other frequencies will
673	// also use the equation. JDW
674	if (rate == 44100)
675		delta = 0xeb3;
676	else if (rate == 8000)
677		delta = 0x2ab;
678	else if (rate == 48000)
679		delta = 0x1000;
680	else
681		delta = DIV_ROUND_CLOSEST(rate << 12, 48000) & 0x0000ffff;
682	return delta;
683}
684
685/*---------------------------------------------------------------------------
686   snd_trident_convert_adc_rate
687
688   Description: This routine converts rate in HZ to hardware delta value.
689
690   Parameters:  trident - pointer to target device class for 4DWave.
691                rate - Real or Virtual channel number.
692
693   Returns:     Delta value.
694
695  ---------------------------------------------------------------------------*/
696static unsigned int snd_trident_convert_adc_rate(unsigned int rate)
697{
698	unsigned int delta;
699
700	// We special case 44100 and 8000 since rounding with the equation
701	// does not give us an accurate enough value. For 11025 and 22050
702	// the equation gives us the best answer. All other frequencies will
703	// also use the equation. JDW
704	if (rate == 44100)
705		delta = 0x116a;
706	else if (rate == 8000)
707		delta = 0x6000;
708	else if (rate == 48000)
709		delta = 0x1000;
710	else
711		delta = ((48000 << 12) / rate) & 0x0000ffff;
712	return delta;
713}
714
715/*---------------------------------------------------------------------------
716   snd_trident_spurious_threshold
717
718   Description: This routine converts rate in HZ to spurious threshold.
719
720   Parameters:  trident - pointer to target device class for 4DWave.
721                rate - Real or Virtual channel number.
722
723   Returns:     Delta value.
724
725  ---------------------------------------------------------------------------*/
726static unsigned int snd_trident_spurious_threshold(unsigned int rate,
727						   unsigned int period_size)
728{
729	unsigned int res = (rate * period_size) / 48000;
730	if (res < 64)
731		res = res / 2;
732	else
733		res -= 32;
734	return res;
735}
736
737/*---------------------------------------------------------------------------
738   snd_trident_control_mode
739
740   Description: This routine returns a control mode for a PCM channel.
741
742   Parameters:  trident - pointer to target device class for 4DWave.
743                substream  - PCM substream
744
745   Returns:     Control value.
746
747  ---------------------------------------------------------------------------*/
748static unsigned int snd_trident_control_mode(struct snd_pcm_substream *substream)
749{
750	unsigned int CTRL;
751	struct snd_pcm_runtime *runtime = substream->runtime;
752
753	/* set ctrl mode
754	   CTRL default: 8-bit (unsigned) mono, loop mode enabled
755	 */
756	CTRL = 0x00000001;
757	if (snd_pcm_format_width(runtime->format) == 16)
758		CTRL |= 0x00000008;	// 16-bit data
759	if (snd_pcm_format_signed(runtime->format))
760		CTRL |= 0x00000002;	// signed data
761	if (runtime->channels > 1)
762		CTRL |= 0x00000004;	// stereo data
763	return CTRL;
764}
765
766/*
767 *  PCM part
768 */
769
770/*---------------------------------------------------------------------------
771   snd_trident_allocate_pcm_mem
772
773   Description: Allocate PCM ring buffer for given substream
774
775   Parameters:  substream  - PCM substream class
776		hw_params  - hardware parameters
777
778   Returns:     Error status
779
780  ---------------------------------------------------------------------------*/
781
782static int snd_trident_allocate_pcm_mem(struct snd_pcm_substream *substream,
783					struct snd_pcm_hw_params *hw_params)
784{
785	struct snd_trident *trident = snd_pcm_substream_chip(substream);
786	struct snd_pcm_runtime *runtime = substream->runtime;
787	struct snd_trident_voice *voice = runtime->private_data;
788
789	if (trident->tlb.entries) {
790		if (runtime->buffer_changed) {
791			if (voice->memblk)
792				snd_trident_free_pages(trident, voice->memblk);
793			voice->memblk = snd_trident_alloc_pages(trident, substream);
794			if (voice->memblk == NULL)
795				return -ENOMEM;
796		}
797	}
798	return 0;
799}
800
801/*---------------------------------------------------------------------------
802   snd_trident_allocate_evoice
803
804   Description: Allocate extra voice as interrupt generator
805
806   Parameters:  substream  - PCM substream class
807		hw_params  - hardware parameters
808
809   Returns:     Error status
810
811  ---------------------------------------------------------------------------*/
812
813static int snd_trident_allocate_evoice(struct snd_pcm_substream *substream,
814				       struct snd_pcm_hw_params *hw_params)
815{
816	struct snd_trident *trident = snd_pcm_substream_chip(substream);
817	struct snd_pcm_runtime *runtime = substream->runtime;
818	struct snd_trident_voice *voice = runtime->private_data;
819	struct snd_trident_voice *evoice = voice->extra;
820
821	/* voice management */
822
823	if (params_buffer_size(hw_params) / 2 != params_period_size(hw_params)) {
824		if (evoice == NULL) {
825			evoice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
826			if (evoice == NULL)
827				return -ENOMEM;
828			voice->extra = evoice;
829			evoice->substream = substream;
830		}
831	} else {
832		if (evoice != NULL) {
833			snd_trident_free_voice(trident, evoice);
834			voice->extra = evoice = NULL;
835		}
836	}
837
838	return 0;
839}
840
841/*---------------------------------------------------------------------------
842   snd_trident_hw_params
843
844   Description: Set the hardware parameters for the playback device.
845
846   Parameters:  substream  - PCM substream class
847		hw_params  - hardware parameters
848
849   Returns:     Error status
850
851  ---------------------------------------------------------------------------*/
852
853static int snd_trident_hw_params(struct snd_pcm_substream *substream,
854				 struct snd_pcm_hw_params *hw_params)
855{
856	int err;
857
858	err = snd_trident_allocate_pcm_mem(substream, hw_params);
859	if (err >= 0)
860		err = snd_trident_allocate_evoice(substream, hw_params);
861	return err;
862}
863
864/*---------------------------------------------------------------------------
865   snd_trident_playback_hw_free
866
867   Description: Release the hardware resources for the playback device.
868
869   Parameters:  substream  - PCM substream class
870
871   Returns:     Error status
872
873  ---------------------------------------------------------------------------*/
874
875static int snd_trident_hw_free(struct snd_pcm_substream *substream)
876{
877	struct snd_trident *trident = snd_pcm_substream_chip(substream);
878	struct snd_pcm_runtime *runtime = substream->runtime;
879	struct snd_trident_voice *voice = runtime->private_data;
880	struct snd_trident_voice *evoice = voice ? voice->extra : NULL;
881
882	if (trident->tlb.entries) {
883		if (voice && voice->memblk) {
884			snd_trident_free_pages(trident, voice->memblk);
885			voice->memblk = NULL;
886		}
887	}
888	if (evoice != NULL) {
889		snd_trident_free_voice(trident, evoice);
890		voice->extra = NULL;
891	}
892	return 0;
893}
894
895/*---------------------------------------------------------------------------
896   snd_trident_playback_prepare
897
898   Description: Prepare playback device for playback.
899
900   Parameters:  substream  - PCM substream class
901
902   Returns:     Error status
903
904  ---------------------------------------------------------------------------*/
905
906static int snd_trident_playback_prepare(struct snd_pcm_substream *substream)
907{
908	struct snd_trident *trident = snd_pcm_substream_chip(substream);
909	struct snd_pcm_runtime *runtime = substream->runtime;
910	struct snd_trident_voice *voice = runtime->private_data;
911	struct snd_trident_voice *evoice = voice->extra;
912	struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[substream->number];
913
914	spin_lock_irq(&trident->reg_lock);
915
916	/* set delta (rate) value */
917	voice->Delta = snd_trident_convert_rate(runtime->rate);
918	voice->spurious_threshold = snd_trident_spurious_threshold(runtime->rate, runtime->period_size);
919
920	/* set Loop Begin Address */
921	if (voice->memblk)
922		voice->LBA = voice->memblk->offset;
923	else
924		voice->LBA = runtime->dma_addr;
925
926	voice->CSO = 0;
927	voice->ESO = runtime->buffer_size - 1;	/* in samples */
928	voice->CTRL = snd_trident_control_mode(substream);
929	voice->FMC = 3;
930	voice->GVSel = 1;
931	voice->EC = 0;
932	voice->Alpha = 0;
933	voice->FMS = 0;
934	voice->Vol = mix->vol;
935	voice->RVol = mix->rvol;
936	voice->CVol = mix->cvol;
937	voice->Pan = mix->pan;
938	voice->Attribute = 0;
939#if 0
940	voice->Attribute = (1<<(30-16))|(2<<(26-16))|
941			   (0<<(24-16))|(0x1f<<(19-16));
942#else
943	voice->Attribute = 0;
944#endif
945
946	snd_trident_write_voice_regs(trident, voice);
947
948	if (evoice != NULL) {
949		evoice->Delta = voice->Delta;
950		evoice->spurious_threshold = voice->spurious_threshold;
951		evoice->LBA = voice->LBA;
952		evoice->CSO = 0;
953		evoice->ESO = (runtime->period_size * 2) + 4 - 1; /* in samples */
954		evoice->CTRL = voice->CTRL;
955		evoice->FMC = 3;
956		evoice->GVSel = trident->device == TRIDENT_DEVICE_ID_SI7018 ? 0 : 1;
957		evoice->EC = 0;
958		evoice->Alpha = 0;
959		evoice->FMS = 0;
960		evoice->Vol = 0x3ff;			/* mute */
961		evoice->RVol = evoice->CVol = 0x7f;	/* mute */
962		evoice->Pan = 0x7f;			/* mute */
963#if 0
964		evoice->Attribute = (1<<(30-16))|(2<<(26-16))|
965				    (0<<(24-16))|(0x1f<<(19-16));
966#else
967		evoice->Attribute = 0;
968#endif
969		snd_trident_write_voice_regs(trident, evoice);
970		evoice->isync2 = 1;
971		evoice->isync_mark = runtime->period_size;
972		evoice->ESO = (runtime->period_size * 2) - 1;
973	}
974
975	spin_unlock_irq(&trident->reg_lock);
976
977	return 0;
978}
979
980/*---------------------------------------------------------------------------
981   snd_trident_capture_hw_params
982
983   Description: Set the hardware parameters for the capture device.
984
985   Parameters:  substream  - PCM substream class
986		hw_params  - hardware parameters
987
988   Returns:     Error status
989
990  ---------------------------------------------------------------------------*/
991
992static int snd_trident_capture_hw_params(struct snd_pcm_substream *substream,
993					 struct snd_pcm_hw_params *hw_params)
994{
995	return snd_trident_allocate_pcm_mem(substream, hw_params);
996}
997
998/*---------------------------------------------------------------------------
999   snd_trident_capture_prepare
1000
1001   Description: Prepare capture device for playback.
1002
1003   Parameters:  substream  - PCM substream class
1004
1005   Returns:     Error status
1006
1007  ---------------------------------------------------------------------------*/
1008
1009static int snd_trident_capture_prepare(struct snd_pcm_substream *substream)
1010{
1011	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1012	struct snd_pcm_runtime *runtime = substream->runtime;
1013	struct snd_trident_voice *voice = runtime->private_data;
1014	unsigned int val, ESO_bytes;
1015
1016	spin_lock_irq(&trident->reg_lock);
1017
1018	// Initialize the channel and set channel Mode
1019	outb(0, TRID_REG(trident, LEGACY_DMAR15));
1020
1021	// Set DMA channel operation mode register
1022	outb(0x54, TRID_REG(trident, LEGACY_DMAR11));
1023
1024	// Set channel buffer Address, DMAR0 expects contiguous PCI memory area
1025	voice->LBA = runtime->dma_addr;
1026	outl(voice->LBA, TRID_REG(trident, LEGACY_DMAR0));
1027	if (voice->memblk)
1028		voice->LBA = voice->memblk->offset;
1029
1030	// set ESO
1031	ESO_bytes = snd_pcm_lib_buffer_bytes(substream) - 1;
1032	outb((ESO_bytes & 0x00ff0000) >> 16, TRID_REG(trident, LEGACY_DMAR6));
1033	outw((ESO_bytes & 0x0000ffff), TRID_REG(trident, LEGACY_DMAR4));
1034	ESO_bytes++;
1035
1036	// Set channel sample rate, 4.12 format
1037	val = DIV_ROUND_CLOSEST(48000U << 12, runtime->rate);
1038	outw(val, TRID_REG(trident, T4D_SBDELTA_DELTA_R));
1039
1040	// Set channel interrupt blk length
1041	if (snd_pcm_format_width(runtime->format) == 16) {
1042		val = (unsigned short) ((ESO_bytes >> 1) - 1);
1043	} else {
1044		val = (unsigned short) (ESO_bytes - 1);
1045	}
1046
1047	outl((val << 16) | val, TRID_REG(trident, T4D_SBBL_SBCL));
1048
1049	// Right now, set format and start to run captureing,
1050	// continuous run loop enable.
1051	trident->bDMAStart = 0x19;	// 0001 1001b
1052
1053	if (snd_pcm_format_width(runtime->format) == 16)
1054		trident->bDMAStart |= 0x80;
1055	if (snd_pcm_format_signed(runtime->format))
1056		trident->bDMAStart |= 0x20;
1057	if (runtime->channels > 1)
1058		trident->bDMAStart |= 0x40;
1059
1060	// Prepare capture intr channel
1061
1062	voice->Delta = snd_trident_convert_rate(runtime->rate);
1063	voice->spurious_threshold = snd_trident_spurious_threshold(runtime->rate, runtime->period_size);
1064	voice->isync = 1;
1065	voice->isync_mark = runtime->period_size;
1066	voice->isync_max = runtime->buffer_size;
1067
1068	// Set voice parameters
1069	voice->CSO = 0;
1070	voice->ESO = voice->isync_ESO = (runtime->period_size * 2) + 6 - 1;
1071	voice->CTRL = snd_trident_control_mode(substream);
1072	voice->FMC = 3;
1073	voice->RVol = 0x7f;
1074	voice->CVol = 0x7f;
1075	voice->GVSel = 1;
1076	voice->Pan = 0x7f;		/* mute */
1077	voice->Vol = 0x3ff;		/* mute */
1078	voice->EC = 0;
1079	voice->Alpha = 0;
1080	voice->FMS = 0;
1081	voice->Attribute = 0;
1082
1083	snd_trident_write_voice_regs(trident, voice);
1084
1085	spin_unlock_irq(&trident->reg_lock);
1086	return 0;
1087}
1088
1089/*---------------------------------------------------------------------------
1090   snd_trident_si7018_capture_hw_params
1091
1092   Description: Set the hardware parameters for the capture device.
1093
1094   Parameters:  substream  - PCM substream class
1095		hw_params  - hardware parameters
1096
1097   Returns:     Error status
1098
1099  ---------------------------------------------------------------------------*/
1100
1101static int snd_trident_si7018_capture_hw_params(struct snd_pcm_substream *substream,
1102						struct snd_pcm_hw_params *hw_params)
1103{
1104	return snd_trident_allocate_evoice(substream, hw_params);
1105}
1106
1107/*---------------------------------------------------------------------------
1108   snd_trident_si7018_capture_hw_free
1109
1110   Description: Release the hardware resources for the capture device.
1111
1112   Parameters:  substream  - PCM substream class
1113
1114   Returns:     Error status
1115
1116  ---------------------------------------------------------------------------*/
1117
1118static int snd_trident_si7018_capture_hw_free(struct snd_pcm_substream *substream)
1119{
1120	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1121	struct snd_pcm_runtime *runtime = substream->runtime;
1122	struct snd_trident_voice *voice = runtime->private_data;
1123	struct snd_trident_voice *evoice = voice ? voice->extra : NULL;
1124
1125	if (evoice != NULL) {
1126		snd_trident_free_voice(trident, evoice);
1127		voice->extra = NULL;
1128	}
1129	return 0;
1130}
1131
1132/*---------------------------------------------------------------------------
1133   snd_trident_si7018_capture_prepare
1134
1135   Description: Prepare capture device for playback.
1136
1137   Parameters:  substream  - PCM substream class
1138
1139   Returns:     Error status
1140
1141  ---------------------------------------------------------------------------*/
1142
1143static int snd_trident_si7018_capture_prepare(struct snd_pcm_substream *substream)
1144{
1145	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1146	struct snd_pcm_runtime *runtime = substream->runtime;
1147	struct snd_trident_voice *voice = runtime->private_data;
1148	struct snd_trident_voice *evoice = voice->extra;
1149
1150	spin_lock_irq(&trident->reg_lock);
1151
1152	voice->LBA = runtime->dma_addr;
1153	voice->Delta = snd_trident_convert_adc_rate(runtime->rate);
1154	voice->spurious_threshold = snd_trident_spurious_threshold(runtime->rate, runtime->period_size);
1155
1156	// Set voice parameters
1157	voice->CSO = 0;
1158	voice->ESO = runtime->buffer_size - 1;		/* in samples */
1159	voice->CTRL = snd_trident_control_mode(substream);
1160	voice->FMC = 0;
1161	voice->RVol = 0;
1162	voice->CVol = 0;
1163	voice->GVSel = 1;
1164	voice->Pan = T4D_DEFAULT_PCM_PAN;
1165	voice->Vol = 0;
1166	voice->EC = 0;
1167	voice->Alpha = 0;
1168	voice->FMS = 0;
1169
1170	voice->Attribute = (2 << (30-16)) |
1171			   (2 << (26-16)) |
1172			   (2 << (24-16)) |
1173			   (1 << (23-16));
1174
1175	snd_trident_write_voice_regs(trident, voice);
1176
1177	if (evoice != NULL) {
1178		evoice->Delta = snd_trident_convert_rate(runtime->rate);
1179		evoice->spurious_threshold = voice->spurious_threshold;
1180		evoice->LBA = voice->LBA;
1181		evoice->CSO = 0;
1182		evoice->ESO = (runtime->period_size * 2) + 20 - 1; /* in samples, 20 means correction */
1183		evoice->CTRL = voice->CTRL;
1184		evoice->FMC = 3;
1185		evoice->GVSel = 0;
1186		evoice->EC = 0;
1187		evoice->Alpha = 0;
1188		evoice->FMS = 0;
1189		evoice->Vol = 0x3ff;			/* mute */
1190		evoice->RVol = evoice->CVol = 0x7f;	/* mute */
1191		evoice->Pan = 0x7f;			/* mute */
1192		evoice->Attribute = 0;
1193		snd_trident_write_voice_regs(trident, evoice);
1194		evoice->isync2 = 1;
1195		evoice->isync_mark = runtime->period_size;
1196		evoice->ESO = (runtime->period_size * 2) - 1;
1197	}
1198
1199	spin_unlock_irq(&trident->reg_lock);
1200	return 0;
1201}
1202
1203/*---------------------------------------------------------------------------
1204   snd_trident_foldback_prepare
1205
1206   Description: Prepare foldback capture device for playback.
1207
1208   Parameters:  substream  - PCM substream class
1209
1210   Returns:     Error status
1211
1212  ---------------------------------------------------------------------------*/
1213
1214static int snd_trident_foldback_prepare(struct snd_pcm_substream *substream)
1215{
1216	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1217	struct snd_pcm_runtime *runtime = substream->runtime;
1218	struct snd_trident_voice *voice = runtime->private_data;
1219	struct snd_trident_voice *evoice = voice->extra;
1220
1221	spin_lock_irq(&trident->reg_lock);
1222
1223	/* Set channel buffer Address */
1224	if (voice->memblk)
1225		voice->LBA = voice->memblk->offset;
1226	else
1227		voice->LBA = runtime->dma_addr;
1228
1229	/* set target ESO for channel */
1230	voice->ESO = runtime->buffer_size - 1;	/* in samples */
1231
1232	/* set sample rate */
1233	voice->Delta = 0x1000;
1234	voice->spurious_threshold = snd_trident_spurious_threshold(48000, runtime->period_size);
1235
1236	voice->CSO = 0;
1237	voice->CTRL = snd_trident_control_mode(substream);
1238	voice->FMC = 3;
1239	voice->RVol = 0x7f;
1240	voice->CVol = 0x7f;
1241	voice->GVSel = 1;
1242	voice->Pan = 0x7f;	/* mute */
1243	voice->Vol = 0x3ff;	/* mute */
1244	voice->EC = 0;
1245	voice->Alpha = 0;
1246	voice->FMS = 0;
1247	voice->Attribute = 0;
1248
1249	/* set up capture channel */
1250	outb(((voice->number & 0x3f) | 0x80), TRID_REG(trident, T4D_RCI + voice->foldback_chan));
1251
1252	snd_trident_write_voice_regs(trident, voice);
1253
1254	if (evoice != NULL) {
1255		evoice->Delta = voice->Delta;
1256		evoice->spurious_threshold = voice->spurious_threshold;
1257		evoice->LBA = voice->LBA;
1258		evoice->CSO = 0;
1259		evoice->ESO = (runtime->period_size * 2) + 4 - 1; /* in samples */
1260		evoice->CTRL = voice->CTRL;
1261		evoice->FMC = 3;
1262		evoice->GVSel = trident->device == TRIDENT_DEVICE_ID_SI7018 ? 0 : 1;
1263		evoice->EC = 0;
1264		evoice->Alpha = 0;
1265		evoice->FMS = 0;
1266		evoice->Vol = 0x3ff;			/* mute */
1267		evoice->RVol = evoice->CVol = 0x7f;	/* mute */
1268		evoice->Pan = 0x7f;			/* mute */
1269		evoice->Attribute = 0;
1270		snd_trident_write_voice_regs(trident, evoice);
1271		evoice->isync2 = 1;
1272		evoice->isync_mark = runtime->period_size;
1273		evoice->ESO = (runtime->period_size * 2) - 1;
1274	}
1275
1276	spin_unlock_irq(&trident->reg_lock);
1277	return 0;
1278}
1279
1280/*---------------------------------------------------------------------------
1281   snd_trident_spdif_hw_params
1282
1283   Description: Set the hardware parameters for the spdif device.
1284
1285   Parameters:  substream  - PCM substream class
1286		hw_params  - hardware parameters
1287
1288   Returns:     Error status
1289
1290  ---------------------------------------------------------------------------*/
1291
1292static int snd_trident_spdif_hw_params(struct snd_pcm_substream *substream,
1293				       struct snd_pcm_hw_params *hw_params)
1294{
1295	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1296	unsigned int old_bits = 0, change = 0;
1297	int err;
1298
1299	err = snd_trident_allocate_pcm_mem(substream, hw_params);
1300	if (err < 0)
1301		return err;
1302
1303	if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
1304		err = snd_trident_allocate_evoice(substream, hw_params);
1305		if (err < 0)
1306			return err;
1307	}
1308
1309	/* prepare SPDIF channel */
1310	spin_lock_irq(&trident->reg_lock);
1311	old_bits = trident->spdif_pcm_bits;
1312	if (old_bits & IEC958_AES0_PROFESSIONAL)
1313		trident->spdif_pcm_bits &= ~IEC958_AES0_PRO_FS;
1314	else
1315		trident->spdif_pcm_bits &= ~(IEC958_AES3_CON_FS << 24);
1316	if (params_rate(hw_params) >= 48000) {
1317		trident->spdif_pcm_ctrl = 0x3c;	// 48000 Hz
1318		trident->spdif_pcm_bits |=
1319			trident->spdif_bits & IEC958_AES0_PROFESSIONAL ?
1320				IEC958_AES0_PRO_FS_48000 :
1321				(IEC958_AES3_CON_FS_48000 << 24);
1322	}
1323	else if (params_rate(hw_params) >= 44100) {
1324		trident->spdif_pcm_ctrl = 0x3e;	// 44100 Hz
1325		trident->spdif_pcm_bits |=
1326			trident->spdif_bits & IEC958_AES0_PROFESSIONAL ?
1327				IEC958_AES0_PRO_FS_44100 :
1328				(IEC958_AES3_CON_FS_44100 << 24);
1329	}
1330	else {
1331		trident->spdif_pcm_ctrl = 0x3d;	// 32000 Hz
1332		trident->spdif_pcm_bits |=
1333			trident->spdif_bits & IEC958_AES0_PROFESSIONAL ?
1334				IEC958_AES0_PRO_FS_32000 :
1335				(IEC958_AES3_CON_FS_32000 << 24);
1336	}
1337	change = old_bits != trident->spdif_pcm_bits;
1338	spin_unlock_irq(&trident->reg_lock);
1339
1340	if (change)
1341		snd_ctl_notify(trident->card, SNDRV_CTL_EVENT_MASK_VALUE, &trident->spdif_pcm_ctl->id);
1342
1343	return 0;
1344}
1345
1346/*---------------------------------------------------------------------------
1347   snd_trident_spdif_prepare
1348
1349   Description: Prepare SPDIF device for playback.
1350
1351   Parameters:  substream  - PCM substream class
1352
1353   Returns:     Error status
1354
1355  ---------------------------------------------------------------------------*/
1356
1357static int snd_trident_spdif_prepare(struct snd_pcm_substream *substream)
1358{
1359	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1360	struct snd_pcm_runtime *runtime = substream->runtime;
1361	struct snd_trident_voice *voice = runtime->private_data;
1362	struct snd_trident_voice *evoice = voice->extra;
1363	struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[substream->number];
1364	unsigned int RESO, LBAO;
1365	unsigned int temp;
1366
1367	spin_lock_irq(&trident->reg_lock);
1368
1369	if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
1370
1371		/* set delta (rate) value */
1372		voice->Delta = snd_trident_convert_rate(runtime->rate);
1373		voice->spurious_threshold = snd_trident_spurious_threshold(runtime->rate, runtime->period_size);
1374
1375		/* set Loop Back Address */
1376		LBAO = runtime->dma_addr;
1377		if (voice->memblk)
1378			voice->LBA = voice->memblk->offset;
1379		else
1380			voice->LBA = LBAO;
1381
1382		voice->isync = 1;
1383		voice->isync3 = 1;
1384		voice->isync_mark = runtime->period_size;
1385		voice->isync_max = runtime->buffer_size;
1386
1387		/* set target ESO for channel */
1388		RESO = runtime->buffer_size - 1;
1389		voice->ESO = voice->isync_ESO = (runtime->period_size * 2) + 6 - 1;
1390
1391		/* set ctrl mode */
1392		voice->CTRL = snd_trident_control_mode(substream);
1393
1394		voice->FMC = 3;
1395		voice->RVol = 0x7f;
1396		voice->CVol = 0x7f;
1397		voice->GVSel = 1;
1398		voice->Pan = 0x7f;
1399		voice->Vol = 0x3ff;
1400		voice->EC = 0;
1401		voice->CSO = 0;
1402		voice->Alpha = 0;
1403		voice->FMS = 0;
1404		voice->Attribute = 0;
1405
1406		/* prepare surrogate IRQ channel */
1407		snd_trident_write_voice_regs(trident, voice);
1408
1409		outw((RESO & 0xffff), TRID_REG(trident, NX_SPESO));
1410		outb((RESO >> 16), TRID_REG(trident, NX_SPESO + 2));
1411		outl((LBAO & 0xfffffffc), TRID_REG(trident, NX_SPLBA));
1412		outw((voice->CSO & 0xffff), TRID_REG(trident, NX_SPCTRL_SPCSO));
1413		outb((voice->CSO >> 16), TRID_REG(trident, NX_SPCTRL_SPCSO + 2));
1414
1415		/* set SPDIF setting */
1416		outb(trident->spdif_pcm_ctrl, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
1417		outl(trident->spdif_pcm_bits, TRID_REG(trident, NX_SPCSTATUS));
1418
1419	} else {	/* SiS */
1420
1421		/* set delta (rate) value */
1422		voice->Delta = 0x800;
1423		voice->spurious_threshold = snd_trident_spurious_threshold(48000, runtime->period_size);
1424
1425		/* set Loop Begin Address */
1426		if (voice->memblk)
1427			voice->LBA = voice->memblk->offset;
1428		else
1429			voice->LBA = runtime->dma_addr;
1430
1431		voice->CSO = 0;
1432		voice->ESO = runtime->buffer_size - 1;	/* in samples */
1433		voice->CTRL = snd_trident_control_mode(substream);
1434		voice->FMC = 3;
1435		voice->GVSel = 1;
1436		voice->EC = 0;
1437		voice->Alpha = 0;
1438		voice->FMS = 0;
1439		voice->Vol = mix->vol;
1440		voice->RVol = mix->rvol;
1441		voice->CVol = mix->cvol;
1442		voice->Pan = mix->pan;
1443		voice->Attribute = (1<<(30-16))|(7<<(26-16))|
1444				   (0<<(24-16))|(0<<(19-16));
1445
1446		snd_trident_write_voice_regs(trident, voice);
1447
1448		if (evoice != NULL) {
1449			evoice->Delta = voice->Delta;
1450			evoice->spurious_threshold = voice->spurious_threshold;
1451			evoice->LBA = voice->LBA;
1452			evoice->CSO = 0;
1453			evoice->ESO = (runtime->period_size * 2) + 4 - 1; /* in samples */
1454			evoice->CTRL = voice->CTRL;
1455			evoice->FMC = 3;
1456			evoice->GVSel = trident->device == TRIDENT_DEVICE_ID_SI7018 ? 0 : 1;
1457			evoice->EC = 0;
1458			evoice->Alpha = 0;
1459			evoice->FMS = 0;
1460			evoice->Vol = 0x3ff;			/* mute */
1461			evoice->RVol = evoice->CVol = 0x7f;	/* mute */
1462			evoice->Pan = 0x7f;			/* mute */
1463			evoice->Attribute = 0;
1464			snd_trident_write_voice_regs(trident, evoice);
1465			evoice->isync2 = 1;
1466			evoice->isync_mark = runtime->period_size;
1467			evoice->ESO = (runtime->period_size * 2) - 1;
1468		}
1469
1470		outl(trident->spdif_pcm_bits, TRID_REG(trident, SI_SPDIF_CS));
1471		temp = inl(TRID_REG(trident, T4D_LFO_GC_CIR));
1472		temp &= ~(1<<19);
1473		outl(temp, TRID_REG(trident, T4D_LFO_GC_CIR));
1474		temp = inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL));
1475		temp |= SPDIF_EN;
1476		outl(temp, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
1477	}
1478
1479	spin_unlock_irq(&trident->reg_lock);
1480
1481	return 0;
1482}
1483
1484/*---------------------------------------------------------------------------
1485   snd_trident_trigger
1486
1487   Description: Start/stop devices
1488
1489   Parameters:  substream  - PCM substream class
1490   		cmd	- trigger command (STOP, GO)
1491
1492   Returns:     Error status
1493
1494  ---------------------------------------------------------------------------*/
1495
1496static int snd_trident_trigger(struct snd_pcm_substream *substream,
1497			       int cmd)
1498
1499{
1500	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1501	struct snd_pcm_substream *s;
1502	unsigned int what, whati, capture_flag, spdif_flag;
1503	struct snd_trident_voice *voice, *evoice;
1504	unsigned int val, go;
1505
1506	switch (cmd) {
1507	case SNDRV_PCM_TRIGGER_START:
1508	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1509	case SNDRV_PCM_TRIGGER_RESUME:
1510		go = 1;
1511		break;
1512	case SNDRV_PCM_TRIGGER_STOP:
1513	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1514	case SNDRV_PCM_TRIGGER_SUSPEND:
1515		go = 0;
1516		break;
1517	default:
1518		return -EINVAL;
1519	}
1520	what = whati = capture_flag = spdif_flag = 0;
1521	spin_lock(&trident->reg_lock);
1522	val = inl(TRID_REG(trident, T4D_STIMER)) & 0x00ffffff;
1523	snd_pcm_group_for_each_entry(s, substream) {
1524		if ((struct snd_trident *) snd_pcm_substream_chip(s) == trident) {
1525			voice = s->runtime->private_data;
1526			evoice = voice->extra;
1527			what |= 1 << (voice->number & 0x1f);
1528			if (evoice == NULL) {
1529				whati |= 1 << (voice->number & 0x1f);
1530			} else {
1531				what |= 1 << (evoice->number & 0x1f);
1532				whati |= 1 << (evoice->number & 0x1f);
1533				if (go)
1534					evoice->stimer = val;
1535			}
1536			if (go) {
1537				voice->running = 1;
1538				voice->stimer = val;
1539			} else {
1540				voice->running = 0;
1541			}
1542			snd_pcm_trigger_done(s, substream);
1543			if (voice->capture)
1544				capture_flag = 1;
1545			if (voice->spdif)
1546				spdif_flag = 1;
1547		}
1548	}
1549	if (spdif_flag) {
1550		if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
1551			outl(trident->spdif_pcm_bits, TRID_REG(trident, NX_SPCSTATUS));
1552			val = trident->spdif_pcm_ctrl;
1553			if (!go)
1554				val &= ~(0x28);
1555			outb(val, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
1556		} else {
1557			outl(trident->spdif_pcm_bits, TRID_REG(trident, SI_SPDIF_CS));
1558			val = inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL)) | SPDIF_EN;
1559			outl(val, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
1560		}
1561	}
1562	if (!go)
1563		outl(what, TRID_REG(trident, T4D_STOP_B));
1564	val = inl(TRID_REG(trident, T4D_AINTEN_B));
1565	if (go) {
1566		val |= whati;
1567	} else {
1568		val &= ~whati;
1569	}
1570	outl(val, TRID_REG(trident, T4D_AINTEN_B));
1571	if (go) {
1572		outl(what, TRID_REG(trident, T4D_START_B));
1573
1574		if (capture_flag && trident->device != TRIDENT_DEVICE_ID_SI7018)
1575			outb(trident->bDMAStart, TRID_REG(trident, T4D_SBCTRL_SBE2R_SBDD));
1576	} else {
1577		if (capture_flag && trident->device != TRIDENT_DEVICE_ID_SI7018)
1578			outb(0x00, TRID_REG(trident, T4D_SBCTRL_SBE2R_SBDD));
1579	}
1580	spin_unlock(&trident->reg_lock);
1581	return 0;
1582}
1583
1584/*---------------------------------------------------------------------------
1585   snd_trident_playback_pointer
1586
1587   Description: This routine return the playback position
1588
1589   Parameters:	substream  - PCM substream class
1590
1591   Returns:     position of buffer
1592
1593  ---------------------------------------------------------------------------*/
1594
1595static snd_pcm_uframes_t snd_trident_playback_pointer(struct snd_pcm_substream *substream)
1596{
1597	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1598	struct snd_pcm_runtime *runtime = substream->runtime;
1599	struct snd_trident_voice *voice = runtime->private_data;
1600	unsigned int cso;
1601
1602	if (!voice->running)
1603		return 0;
1604
1605	spin_lock(&trident->reg_lock);
1606
1607	outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
1608
1609	if (trident->device != TRIDENT_DEVICE_ID_NX) {
1610		cso = inw(TRID_REG(trident, CH_DX_CSO_ALPHA_FMS + 2));
1611	} else {		// ID_4DWAVE_NX
1612		cso = (unsigned int) inl(TRID_REG(trident, CH_NX_DELTA_CSO)) & 0x00ffffff;
1613	}
1614
1615	spin_unlock(&trident->reg_lock);
1616
1617	if (cso >= runtime->buffer_size)
1618		cso = 0;
1619
1620	return cso;
1621}
1622
1623/*---------------------------------------------------------------------------
1624   snd_trident_capture_pointer
1625
1626   Description: This routine return the capture position
1627
1628   Parameters:   pcm1    - PCM device class
1629
1630   Returns:     position of buffer
1631
1632  ---------------------------------------------------------------------------*/
1633
1634static snd_pcm_uframes_t snd_trident_capture_pointer(struct snd_pcm_substream *substream)
1635{
1636	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1637	struct snd_pcm_runtime *runtime = substream->runtime;
1638	struct snd_trident_voice *voice = runtime->private_data;
1639	unsigned int result;
1640
1641	if (!voice->running)
1642		return 0;
1643
1644	result = inw(TRID_REG(trident, T4D_SBBL_SBCL));
1645	if (runtime->channels > 1)
1646		result >>= 1;
1647	if (result > 0)
1648		result = runtime->buffer_size - result;
1649
1650	return result;
1651}
1652
1653/*---------------------------------------------------------------------------
1654   snd_trident_spdif_pointer
1655
1656   Description: This routine return the SPDIF playback position
1657
1658   Parameters:	substream  - PCM substream class
1659
1660   Returns:     position of buffer
1661
1662  ---------------------------------------------------------------------------*/
1663
1664static snd_pcm_uframes_t snd_trident_spdif_pointer(struct snd_pcm_substream *substream)
1665{
1666	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1667	struct snd_pcm_runtime *runtime = substream->runtime;
1668	struct snd_trident_voice *voice = runtime->private_data;
1669	unsigned int result;
1670
1671	if (!voice->running)
1672		return 0;
1673
1674	result = inl(TRID_REG(trident, NX_SPCTRL_SPCSO)) & 0x00ffffff;
1675
1676	return result;
1677}
1678
1679/*
1680 *  Playback support device description
1681 */
1682
1683static const struct snd_pcm_hardware snd_trident_playback =
1684{
1685	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1686				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1687				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
1688				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
1689	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1690				 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1691	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1692	.rate_min =		4000,
1693	.rate_max =		48000,
1694	.channels_min =		1,
1695	.channels_max =		2,
1696	.buffer_bytes_max =	(256*1024),
1697	.period_bytes_min =	64,
1698	.period_bytes_max =	(256*1024),
1699	.periods_min =		1,
1700	.periods_max =		1024,
1701	.fifo_size =		0,
1702};
1703
1704/*
1705 *  Capture support device description
1706 */
1707
1708static const struct snd_pcm_hardware snd_trident_capture =
1709{
1710	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1711				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1712				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
1713				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
1714	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1715				 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1716	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1717	.rate_min =		4000,
1718	.rate_max =		48000,
1719	.channels_min =		1,
1720	.channels_max =		2,
1721	.buffer_bytes_max =	(128*1024),
1722	.period_bytes_min =	64,
1723	.period_bytes_max =	(128*1024),
1724	.periods_min =		1,
1725	.periods_max =		1024,
1726	.fifo_size =		0,
1727};
1728
1729/*
1730 *  Foldback capture support device description
1731 */
1732
1733static const struct snd_pcm_hardware snd_trident_foldback =
1734{
1735	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1736				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1737				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
1738				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
1739	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1740	.rates =		SNDRV_PCM_RATE_48000,
1741	.rate_min =		48000,
1742	.rate_max =		48000,
1743	.channels_min =		2,
1744	.channels_max =		2,
1745	.buffer_bytes_max =	(128*1024),
1746	.period_bytes_min =	64,
1747	.period_bytes_max =	(128*1024),
1748	.periods_min =		1,
1749	.periods_max =		1024,
1750	.fifo_size =		0,
1751};
1752
1753/*
1754 *  SPDIF playback support device description
1755 */
1756
1757static const struct snd_pcm_hardware snd_trident_spdif =
1758{
1759	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1760				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1761				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
1762				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
1763	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1764	.rates =		(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
1765				 SNDRV_PCM_RATE_48000),
1766	.rate_min =		32000,
1767	.rate_max =		48000,
1768	.channels_min =		2,
1769	.channels_max =		2,
1770	.buffer_bytes_max =	(128*1024),
1771	.period_bytes_min =	64,
1772	.period_bytes_max =	(128*1024),
1773	.periods_min =		1,
1774	.periods_max =		1024,
1775	.fifo_size =		0,
1776};
1777
1778static const struct snd_pcm_hardware snd_trident_spdif_7018 =
1779{
1780	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1781				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1782				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
1783				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
1784	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1785	.rates =		SNDRV_PCM_RATE_48000,
1786	.rate_min =		48000,
1787	.rate_max =		48000,
1788	.channels_min =		2,
1789	.channels_max =		2,
1790	.buffer_bytes_max =	(128*1024),
1791	.period_bytes_min =	64,
1792	.period_bytes_max =	(128*1024),
1793	.periods_min =		1,
1794	.periods_max =		1024,
1795	.fifo_size =		0,
1796};
1797
1798static void snd_trident_pcm_free_substream(struct snd_pcm_runtime *runtime)
1799{
1800	struct snd_trident_voice *voice = runtime->private_data;
1801	struct snd_trident *trident;
1802
1803	if (voice) {
1804		trident = voice->trident;
1805		snd_trident_free_voice(trident, voice);
1806	}
1807}
1808
1809static int snd_trident_playback_open(struct snd_pcm_substream *substream)
1810{
1811	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1812	struct snd_pcm_runtime *runtime = substream->runtime;
1813	struct snd_trident_voice *voice;
1814
1815	voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
1816	if (voice == NULL)
1817		return -EAGAIN;
1818	snd_trident_pcm_mixer_build(trident, voice, substream);
1819	voice->substream = substream;
1820	runtime->private_data = voice;
1821	runtime->private_free = snd_trident_pcm_free_substream;
1822	runtime->hw = snd_trident_playback;
1823	snd_pcm_set_sync(substream);
1824	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
1825	return 0;
1826}
1827
1828/*---------------------------------------------------------------------------
1829   snd_trident_playback_close
1830
1831   Description: This routine will close the 4DWave playback device. For now
1832                we will simply free the dma transfer buffer.
1833
1834   Parameters:	substream  - PCM substream class
1835
1836  ---------------------------------------------------------------------------*/
1837static int snd_trident_playback_close(struct snd_pcm_substream *substream)
1838{
1839	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1840	struct snd_pcm_runtime *runtime = substream->runtime;
1841	struct snd_trident_voice *voice = runtime->private_data;
1842
1843	snd_trident_pcm_mixer_free(trident, voice, substream);
1844	return 0;
1845}
1846
1847/*---------------------------------------------------------------------------
1848   snd_trident_spdif_open
1849
1850   Description: This routine will open the 4DWave SPDIF device.
1851
1852   Parameters:	substream  - PCM substream class
1853
1854   Returns:     status  - success or failure flag
1855
1856  ---------------------------------------------------------------------------*/
1857
1858static int snd_trident_spdif_open(struct snd_pcm_substream *substream)
1859{
1860	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1861	struct snd_trident_voice *voice;
1862	struct snd_pcm_runtime *runtime = substream->runtime;
1863
1864	voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
1865	if (voice == NULL)
1866		return -EAGAIN;
1867	voice->spdif = 1;
1868	voice->substream = substream;
1869	spin_lock_irq(&trident->reg_lock);
1870	trident->spdif_pcm_bits = trident->spdif_bits;
1871	spin_unlock_irq(&trident->reg_lock);
1872
1873	runtime->private_data = voice;
1874	runtime->private_free = snd_trident_pcm_free_substream;
1875	if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
1876		runtime->hw = snd_trident_spdif;
1877	} else {
1878		runtime->hw = snd_trident_spdif_7018;
1879	}
1880
1881	trident->spdif_pcm_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1882	snd_ctl_notify(trident->card, SNDRV_CTL_EVENT_MASK_VALUE |
1883		       SNDRV_CTL_EVENT_MASK_INFO, &trident->spdif_pcm_ctl->id);
1884
1885	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
1886	return 0;
1887}
1888
1889
1890/*---------------------------------------------------------------------------
1891   snd_trident_spdif_close
1892
1893   Description: This routine will close the 4DWave SPDIF device.
1894
1895   Parameters:	substream  - PCM substream class
1896
1897  ---------------------------------------------------------------------------*/
1898
1899static int snd_trident_spdif_close(struct snd_pcm_substream *substream)
1900{
1901	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1902	unsigned int temp;
1903
1904	spin_lock_irq(&trident->reg_lock);
1905	// restore default SPDIF setting
1906	if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
1907		outb(trident->spdif_ctrl, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
1908		outl(trident->spdif_bits, TRID_REG(trident, NX_SPCSTATUS));
1909	} else {
1910		outl(trident->spdif_bits, TRID_REG(trident, SI_SPDIF_CS));
1911		temp = inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL));
1912		if (trident->spdif_ctrl) {
1913			temp |= SPDIF_EN;
1914		} else {
1915			temp &= ~SPDIF_EN;
1916		}
1917		outl(temp, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
1918	}
1919	spin_unlock_irq(&trident->reg_lock);
1920	trident->spdif_pcm_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1921	snd_ctl_notify(trident->card, SNDRV_CTL_EVENT_MASK_VALUE |
1922		       SNDRV_CTL_EVENT_MASK_INFO, &trident->spdif_pcm_ctl->id);
1923	return 0;
1924}
1925
1926/*---------------------------------------------------------------------------
1927   snd_trident_capture_open
1928
1929   Description: This routine will open the 4DWave capture device.
1930
1931   Parameters:	substream  - PCM substream class
1932
1933   Returns:     status  - success or failure flag
1934
1935  ---------------------------------------------------------------------------*/
1936
1937static int snd_trident_capture_open(struct snd_pcm_substream *substream)
1938{
1939	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1940	struct snd_trident_voice *voice;
1941	struct snd_pcm_runtime *runtime = substream->runtime;
1942
1943	voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
1944	if (voice == NULL)
1945		return -EAGAIN;
1946	voice->capture = 1;
1947	voice->substream = substream;
1948	runtime->private_data = voice;
1949	runtime->private_free = snd_trident_pcm_free_substream;
1950	runtime->hw = snd_trident_capture;
1951	snd_pcm_set_sync(substream);
1952	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
1953	return 0;
1954}
1955
1956/*---------------------------------------------------------------------------
1957   snd_trident_capture_close
1958
1959   Description: This routine will close the 4DWave capture device. For now
1960                we will simply free the dma transfer buffer.
1961
1962   Parameters:	substream  - PCM substream class
1963
1964  ---------------------------------------------------------------------------*/
1965static int snd_trident_capture_close(struct snd_pcm_substream *substream)
1966{
1967	return 0;
1968}
1969
1970/*---------------------------------------------------------------------------
1971   snd_trident_foldback_open
1972
1973   Description: This routine will open the 4DWave foldback capture device.
1974
1975   Parameters:	substream  - PCM substream class
1976
1977   Returns:     status  - success or failure flag
1978
1979  ---------------------------------------------------------------------------*/
1980
1981static int snd_trident_foldback_open(struct snd_pcm_substream *substream)
1982{
1983	struct snd_trident *trident = snd_pcm_substream_chip(substream);
1984	struct snd_trident_voice *voice;
1985	struct snd_pcm_runtime *runtime = substream->runtime;
1986
1987	voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
1988	if (voice == NULL)
1989		return -EAGAIN;
1990	voice->foldback_chan = substream->number;
1991	voice->substream = substream;
1992	runtime->private_data = voice;
1993	runtime->private_free = snd_trident_pcm_free_substream;
1994	runtime->hw = snd_trident_foldback;
1995	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
1996	return 0;
1997}
1998
1999/*---------------------------------------------------------------------------
2000   snd_trident_foldback_close
2001
2002   Description: This routine will close the 4DWave foldback capture device.
2003		For now we will simply free the dma transfer buffer.
2004
2005   Parameters:	substream  - PCM substream class
2006
2007  ---------------------------------------------------------------------------*/
2008static int snd_trident_foldback_close(struct snd_pcm_substream *substream)
2009{
2010	struct snd_trident *trident = snd_pcm_substream_chip(substream);
2011	struct snd_trident_voice *voice;
2012	struct snd_pcm_runtime *runtime = substream->runtime;
2013	voice = runtime->private_data;
2014
2015	/* stop capture channel */
2016	spin_lock_irq(&trident->reg_lock);
2017	outb(0x00, TRID_REG(trident, T4D_RCI + voice->foldback_chan));
2018	spin_unlock_irq(&trident->reg_lock);
2019	return 0;
2020}
2021
2022/*---------------------------------------------------------------------------
2023   PCM operations
2024  ---------------------------------------------------------------------------*/
2025
2026static const struct snd_pcm_ops snd_trident_playback_ops = {
2027	.open =		snd_trident_playback_open,
2028	.close =	snd_trident_playback_close,
2029	.hw_params =	snd_trident_hw_params,
2030	.hw_free =	snd_trident_hw_free,
2031	.prepare =	snd_trident_playback_prepare,
2032	.trigger =	snd_trident_trigger,
2033	.pointer =	snd_trident_playback_pointer,
2034};
2035
2036static const struct snd_pcm_ops snd_trident_nx_playback_ops = {
2037	.open =		snd_trident_playback_open,
2038	.close =	snd_trident_playback_close,
2039	.hw_params =	snd_trident_hw_params,
2040	.hw_free =	snd_trident_hw_free,
2041	.prepare =	snd_trident_playback_prepare,
2042	.trigger =	snd_trident_trigger,
2043	.pointer =	snd_trident_playback_pointer,
2044};
2045
2046static const struct snd_pcm_ops snd_trident_capture_ops = {
2047	.open =		snd_trident_capture_open,
2048	.close =	snd_trident_capture_close,
2049	.hw_params =	snd_trident_capture_hw_params,
2050	.hw_free =	snd_trident_hw_free,
2051	.prepare =	snd_trident_capture_prepare,
2052	.trigger =	snd_trident_trigger,
2053	.pointer =	snd_trident_capture_pointer,
2054};
2055
2056static const struct snd_pcm_ops snd_trident_si7018_capture_ops = {
2057	.open =		snd_trident_capture_open,
2058	.close =	snd_trident_capture_close,
2059	.hw_params =	snd_trident_si7018_capture_hw_params,
2060	.hw_free =	snd_trident_si7018_capture_hw_free,
2061	.prepare =	snd_trident_si7018_capture_prepare,
2062	.trigger =	snd_trident_trigger,
2063	.pointer =	snd_trident_playback_pointer,
2064};
2065
2066static const struct snd_pcm_ops snd_trident_foldback_ops = {
2067	.open =		snd_trident_foldback_open,
2068	.close =	snd_trident_foldback_close,
2069	.hw_params =	snd_trident_hw_params,
2070	.hw_free =	snd_trident_hw_free,
2071	.prepare =	snd_trident_foldback_prepare,
2072	.trigger =	snd_trident_trigger,
2073	.pointer =	snd_trident_playback_pointer,
2074};
2075
2076static const struct snd_pcm_ops snd_trident_nx_foldback_ops = {
2077	.open =		snd_trident_foldback_open,
2078	.close =	snd_trident_foldback_close,
2079	.hw_params =	snd_trident_hw_params,
2080	.hw_free =	snd_trident_hw_free,
2081	.prepare =	snd_trident_foldback_prepare,
2082	.trigger =	snd_trident_trigger,
2083	.pointer =	snd_trident_playback_pointer,
2084};
2085
2086static const struct snd_pcm_ops snd_trident_spdif_ops = {
2087	.open =		snd_trident_spdif_open,
2088	.close =	snd_trident_spdif_close,
2089	.hw_params =	snd_trident_spdif_hw_params,
2090	.hw_free =	snd_trident_hw_free,
2091	.prepare =	snd_trident_spdif_prepare,
2092	.trigger =	snd_trident_trigger,
2093	.pointer =	snd_trident_spdif_pointer,
2094};
2095
2096static const struct snd_pcm_ops snd_trident_spdif_7018_ops = {
2097	.open =		snd_trident_spdif_open,
2098	.close =	snd_trident_spdif_close,
2099	.hw_params =	snd_trident_spdif_hw_params,
2100	.hw_free =	snd_trident_hw_free,
2101	.prepare =	snd_trident_spdif_prepare,
2102	.trigger =	snd_trident_trigger,
2103	.pointer =	snd_trident_playback_pointer,
2104};
2105
2106/*---------------------------------------------------------------------------
2107   snd_trident_pcm
2108
2109   Description: This routine registers the 4DWave device for PCM support.
2110
2111   Parameters:  trident - pointer to target device class for 4DWave.
2112
2113   Returns:     None
2114
2115  ---------------------------------------------------------------------------*/
2116
2117int snd_trident_pcm(struct snd_trident *trident, int device)
2118{
2119	struct snd_pcm *pcm;
2120	int err;
2121
2122	err = snd_pcm_new(trident->card, "trident_dx_nx", device, trident->ChanPCM, 1, &pcm);
2123	if (err < 0)
2124		return err;
2125
2126	pcm->private_data = trident;
2127
2128	if (trident->tlb.entries) {
2129		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_trident_nx_playback_ops);
2130	} else {
2131		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_trident_playback_ops);
2132	}
2133	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
2134			trident->device != TRIDENT_DEVICE_ID_SI7018 ?
2135			&snd_trident_capture_ops :
2136			&snd_trident_si7018_capture_ops);
2137
2138	pcm->info_flags = 0;
2139	pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
2140	strcpy(pcm->name, "Trident 4DWave");
2141	trident->pcm = pcm;
2142
2143	if (trident->tlb.entries) {
2144		struct snd_pcm_substream *substream;
2145		for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
2146			snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV_SG,
2147						   &trident->pci->dev,
2148						   64*1024, 128*1024);
2149		snd_pcm_set_managed_buffer(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
2150					   SNDRV_DMA_TYPE_DEV,
2151					   &trident->pci->dev,
2152					   64*1024, 128*1024);
2153	} else {
2154		snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
2155					       &trident->pci->dev,
2156					       64*1024, 128*1024);
2157	}
2158
2159	return 0;
2160}
2161
2162/*---------------------------------------------------------------------------
2163   snd_trident_foldback_pcm
2164
2165   Description: This routine registers the 4DWave device for foldback PCM support.
2166
2167   Parameters:  trident - pointer to target device class for 4DWave.
2168
2169   Returns:     None
2170
2171  ---------------------------------------------------------------------------*/
2172
2173int snd_trident_foldback_pcm(struct snd_trident *trident, int device)
2174{
2175	struct snd_pcm *foldback;
2176	int err;
2177	int num_chan = 3;
2178	struct snd_pcm_substream *substream;
2179
2180	if (trident->device == TRIDENT_DEVICE_ID_NX)
2181		num_chan = 4;
2182	err = snd_pcm_new(trident->card, "trident_dx_nx", device, 0, num_chan, &foldback);
2183	if (err < 0)
2184		return err;
2185
2186	foldback->private_data = trident;
2187	if (trident->tlb.entries)
2188		snd_pcm_set_ops(foldback, SNDRV_PCM_STREAM_CAPTURE, &snd_trident_nx_foldback_ops);
2189	else
2190		snd_pcm_set_ops(foldback, SNDRV_PCM_STREAM_CAPTURE, &snd_trident_foldback_ops);
2191	foldback->info_flags = 0;
2192	strcpy(foldback->name, "Trident 4DWave");
2193	substream = foldback->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
2194	strcpy(substream->name, "Front Mixer");
2195	substream = substream->next;
2196	strcpy(substream->name, "Reverb Mixer");
2197	substream = substream->next;
2198	strcpy(substream->name, "Chorus Mixer");
2199	if (num_chan == 4) {
2200		substream = substream->next;
2201		strcpy(substream->name, "Second AC'97 ADC");
2202	}
2203	trident->foldback = foldback;
2204
2205	if (trident->tlb.entries)
2206		snd_pcm_set_managed_buffer_all(foldback, SNDRV_DMA_TYPE_DEV_SG,
2207					       &trident->pci->dev,
2208					       0, 128*1024);
2209	else
2210		snd_pcm_set_managed_buffer_all(foldback, SNDRV_DMA_TYPE_DEV,
2211					       &trident->pci->dev,
2212					       64*1024, 128*1024);
2213
2214	return 0;
2215}
2216
2217/*---------------------------------------------------------------------------
2218   snd_trident_spdif
2219
2220   Description: This routine registers the 4DWave-NX device for SPDIF support.
2221
2222   Parameters:  trident - pointer to target device class for 4DWave-NX.
2223
2224   Returns:     None
2225
2226  ---------------------------------------------------------------------------*/
2227
2228int snd_trident_spdif_pcm(struct snd_trident *trident, int device)
2229{
2230	struct snd_pcm *spdif;
2231	int err;
2232
2233	err = snd_pcm_new(trident->card, "trident_dx_nx IEC958", device, 1, 0, &spdif);
2234	if (err < 0)
2235		return err;
2236
2237	spdif->private_data = trident;
2238	if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
2239		snd_pcm_set_ops(spdif, SNDRV_PCM_STREAM_PLAYBACK, &snd_trident_spdif_ops);
2240	} else {
2241		snd_pcm_set_ops(spdif, SNDRV_PCM_STREAM_PLAYBACK, &snd_trident_spdif_7018_ops);
2242	}
2243	spdif->info_flags = 0;
2244	strcpy(spdif->name, "Trident 4DWave IEC958");
2245	trident->spdif = spdif;
2246
2247	snd_pcm_set_managed_buffer_all(spdif, SNDRV_DMA_TYPE_DEV,
2248				       &trident->pci->dev, 64*1024, 128*1024);
2249
2250	return 0;
2251}
2252
2253/*
2254 *  Mixer part
2255 */
2256
2257
2258/*---------------------------------------------------------------------------
2259    snd_trident_spdif_control
2260
2261    Description: enable/disable S/PDIF out from ac97 mixer
2262  ---------------------------------------------------------------------------*/
2263
2264#define snd_trident_spdif_control_info	snd_ctl_boolean_mono_info
2265
2266static int snd_trident_spdif_control_get(struct snd_kcontrol *kcontrol,
2267					 struct snd_ctl_elem_value *ucontrol)
2268{
2269	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2270	unsigned char val;
2271
2272	spin_lock_irq(&trident->reg_lock);
2273	val = trident->spdif_ctrl;
2274	ucontrol->value.integer.value[0] = val == kcontrol->private_value;
2275	spin_unlock_irq(&trident->reg_lock);
2276	return 0;
2277}
2278
2279static int snd_trident_spdif_control_put(struct snd_kcontrol *kcontrol,
2280					 struct snd_ctl_elem_value *ucontrol)
2281{
2282	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2283	unsigned char val;
2284	int change;
2285
2286	val = ucontrol->value.integer.value[0] ? (unsigned char) kcontrol->private_value : 0x00;
2287	spin_lock_irq(&trident->reg_lock);
2288	/* S/PDIF C Channel bits 0-31 : 48khz, SCMS disabled */
2289	change = trident->spdif_ctrl != val;
2290	trident->spdif_ctrl = val;
2291	if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
2292		if ((inb(TRID_REG(trident, NX_SPCTRL_SPCSO + 3)) & 0x10) == 0) {
2293			outl(trident->spdif_bits, TRID_REG(trident, NX_SPCSTATUS));
2294			outb(trident->spdif_ctrl, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
2295		}
2296	} else {
2297		if (trident->spdif == NULL) {
2298			unsigned int temp;
2299			outl(trident->spdif_bits, TRID_REG(trident, SI_SPDIF_CS));
2300			temp = inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL)) & ~SPDIF_EN;
2301			if (val)
2302				temp |= SPDIF_EN;
2303			outl(temp, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
2304		}
2305	}
2306	spin_unlock_irq(&trident->reg_lock);
2307	return change;
2308}
2309
2310static const struct snd_kcontrol_new snd_trident_spdif_control =
2311{
2312	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
2313	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
2314	.info =		snd_trident_spdif_control_info,
2315	.get =		snd_trident_spdif_control_get,
2316	.put =		snd_trident_spdif_control_put,
2317	.private_value = 0x28,
2318};
2319
2320/*---------------------------------------------------------------------------
2321    snd_trident_spdif_default
2322
2323    Description: put/get the S/PDIF default settings
2324  ---------------------------------------------------------------------------*/
2325
2326static int snd_trident_spdif_default_info(struct snd_kcontrol *kcontrol,
2327					  struct snd_ctl_elem_info *uinfo)
2328{
2329	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2330	uinfo->count = 1;
2331	return 0;
2332}
2333
2334static int snd_trident_spdif_default_get(struct snd_kcontrol *kcontrol,
2335					 struct snd_ctl_elem_value *ucontrol)
2336{
2337	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2338
2339	spin_lock_irq(&trident->reg_lock);
2340	ucontrol->value.iec958.status[0] = (trident->spdif_bits >> 0) & 0xff;
2341	ucontrol->value.iec958.status[1] = (trident->spdif_bits >> 8) & 0xff;
2342	ucontrol->value.iec958.status[2] = (trident->spdif_bits >> 16) & 0xff;
2343	ucontrol->value.iec958.status[3] = (trident->spdif_bits >> 24) & 0xff;
2344	spin_unlock_irq(&trident->reg_lock);
2345	return 0;
2346}
2347
2348static int snd_trident_spdif_default_put(struct snd_kcontrol *kcontrol,
2349					 struct snd_ctl_elem_value *ucontrol)
2350{
2351	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2352	unsigned int val;
2353	int change;
2354
2355	val = (ucontrol->value.iec958.status[0] << 0) |
2356	      (ucontrol->value.iec958.status[1] << 8) |
2357	      (ucontrol->value.iec958.status[2] << 16) |
2358	      (ucontrol->value.iec958.status[3] << 24);
2359	spin_lock_irq(&trident->reg_lock);
2360	change = trident->spdif_bits != val;
2361	trident->spdif_bits = val;
2362	if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
2363		if ((inb(TRID_REG(trident, NX_SPCTRL_SPCSO + 3)) & 0x10) == 0)
2364			outl(trident->spdif_bits, TRID_REG(trident, NX_SPCSTATUS));
2365	} else {
2366		if (trident->spdif == NULL)
2367			outl(trident->spdif_bits, TRID_REG(trident, SI_SPDIF_CS));
2368	}
2369	spin_unlock_irq(&trident->reg_lock);
2370	return change;
2371}
2372
2373static const struct snd_kcontrol_new snd_trident_spdif_default =
2374{
2375	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2376	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2377	.info =		snd_trident_spdif_default_info,
2378	.get =		snd_trident_spdif_default_get,
2379	.put =		snd_trident_spdif_default_put
2380};
2381
2382/*---------------------------------------------------------------------------
2383    snd_trident_spdif_mask
2384
2385    Description: put/get the S/PDIF mask
2386  ---------------------------------------------------------------------------*/
2387
2388static int snd_trident_spdif_mask_info(struct snd_kcontrol *kcontrol,
2389				       struct snd_ctl_elem_info *uinfo)
2390{
2391	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2392	uinfo->count = 1;
2393	return 0;
2394}
2395
2396static int snd_trident_spdif_mask_get(struct snd_kcontrol *kcontrol,
2397				      struct snd_ctl_elem_value *ucontrol)
2398{
2399	ucontrol->value.iec958.status[0] = 0xff;
2400	ucontrol->value.iec958.status[1] = 0xff;
2401	ucontrol->value.iec958.status[2] = 0xff;
2402	ucontrol->value.iec958.status[3] = 0xff;
2403	return 0;
2404}
2405
2406static const struct snd_kcontrol_new snd_trident_spdif_mask =
2407{
2408	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2409	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2410	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
2411	.info =		snd_trident_spdif_mask_info,
2412	.get =		snd_trident_spdif_mask_get,
2413};
2414
2415/*---------------------------------------------------------------------------
2416    snd_trident_spdif_stream
2417
2418    Description: put/get the S/PDIF stream settings
2419  ---------------------------------------------------------------------------*/
2420
2421static int snd_trident_spdif_stream_info(struct snd_kcontrol *kcontrol,
2422					 struct snd_ctl_elem_info *uinfo)
2423{
2424	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2425	uinfo->count = 1;
2426	return 0;
2427}
2428
2429static int snd_trident_spdif_stream_get(struct snd_kcontrol *kcontrol,
2430					struct snd_ctl_elem_value *ucontrol)
2431{
2432	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2433
2434	spin_lock_irq(&trident->reg_lock);
2435	ucontrol->value.iec958.status[0] = (trident->spdif_pcm_bits >> 0) & 0xff;
2436	ucontrol->value.iec958.status[1] = (trident->spdif_pcm_bits >> 8) & 0xff;
2437	ucontrol->value.iec958.status[2] = (trident->spdif_pcm_bits >> 16) & 0xff;
2438	ucontrol->value.iec958.status[3] = (trident->spdif_pcm_bits >> 24) & 0xff;
2439	spin_unlock_irq(&trident->reg_lock);
2440	return 0;
2441}
2442
2443static int snd_trident_spdif_stream_put(struct snd_kcontrol *kcontrol,
2444					struct snd_ctl_elem_value *ucontrol)
2445{
2446	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2447	unsigned int val;
2448	int change;
2449
2450	val = (ucontrol->value.iec958.status[0] << 0) |
2451	      (ucontrol->value.iec958.status[1] << 8) |
2452	      (ucontrol->value.iec958.status[2] << 16) |
2453	      (ucontrol->value.iec958.status[3] << 24);
2454	spin_lock_irq(&trident->reg_lock);
2455	change = trident->spdif_pcm_bits != val;
2456	trident->spdif_pcm_bits = val;
2457	if (trident->spdif != NULL) {
2458		if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
2459			outl(trident->spdif_pcm_bits, TRID_REG(trident, NX_SPCSTATUS));
2460		} else {
2461			outl(trident->spdif_bits, TRID_REG(trident, SI_SPDIF_CS));
2462		}
2463	}
2464	spin_unlock_irq(&trident->reg_lock);
2465	return change;
2466}
2467
2468static const struct snd_kcontrol_new snd_trident_spdif_stream =
2469{
2470	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2471	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2472	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2473	.info =		snd_trident_spdif_stream_info,
2474	.get =		snd_trident_spdif_stream_get,
2475	.put =		snd_trident_spdif_stream_put
2476};
2477
2478/*---------------------------------------------------------------------------
2479    snd_trident_ac97_control
2480
2481    Description: enable/disable rear path for ac97
2482  ---------------------------------------------------------------------------*/
2483
2484#define snd_trident_ac97_control_info	snd_ctl_boolean_mono_info
2485
2486static int snd_trident_ac97_control_get(struct snd_kcontrol *kcontrol,
2487					struct snd_ctl_elem_value *ucontrol)
2488{
2489	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2490	unsigned char val;
2491
2492	spin_lock_irq(&trident->reg_lock);
2493	val = trident->ac97_ctrl = inl(TRID_REG(trident, NX_ACR0_AC97_COM_STAT));
2494	ucontrol->value.integer.value[0] = (val & (1 << kcontrol->private_value)) ? 1 : 0;
2495	spin_unlock_irq(&trident->reg_lock);
2496	return 0;
2497}
2498
2499static int snd_trident_ac97_control_put(struct snd_kcontrol *kcontrol,
2500					struct snd_ctl_elem_value *ucontrol)
2501{
2502	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2503	unsigned char val;
2504	int change = 0;
2505
2506	spin_lock_irq(&trident->reg_lock);
2507	val = trident->ac97_ctrl = inl(TRID_REG(trident, NX_ACR0_AC97_COM_STAT));
2508	val &= ~(1 << kcontrol->private_value);
2509	if (ucontrol->value.integer.value[0])
2510		val |= 1 << kcontrol->private_value;
2511	change = val != trident->ac97_ctrl;
2512	trident->ac97_ctrl = val;
2513	outl(trident->ac97_ctrl = val, TRID_REG(trident, NX_ACR0_AC97_COM_STAT));
2514	spin_unlock_irq(&trident->reg_lock);
2515	return change;
2516}
2517
2518static const struct snd_kcontrol_new snd_trident_ac97_rear_control =
2519{
2520	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
2521	.name =         "Rear Path",
2522	.info =		snd_trident_ac97_control_info,
2523	.get =		snd_trident_ac97_control_get,
2524	.put =		snd_trident_ac97_control_put,
2525	.private_value = 4,
2526};
2527
2528/*---------------------------------------------------------------------------
2529    snd_trident_vol_control
2530
2531    Description: wave & music volume control
2532  ---------------------------------------------------------------------------*/
2533
2534static int snd_trident_vol_control_info(struct snd_kcontrol *kcontrol,
2535					struct snd_ctl_elem_info *uinfo)
2536{
2537	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2538	uinfo->count = 2;
2539	uinfo->value.integer.min = 0;
2540	uinfo->value.integer.max = 255;
2541	return 0;
2542}
2543
2544static int snd_trident_vol_control_get(struct snd_kcontrol *kcontrol,
2545				       struct snd_ctl_elem_value *ucontrol)
2546{
2547	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2548	unsigned int val;
2549
2550	val = trident->musicvol_wavevol;
2551	ucontrol->value.integer.value[0] = 255 - ((val >> kcontrol->private_value) & 0xff);
2552	ucontrol->value.integer.value[1] = 255 - ((val >> (kcontrol->private_value + 8)) & 0xff);
2553	return 0;
2554}
2555
2556static const DECLARE_TLV_DB_SCALE(db_scale_gvol, -6375, 25, 0);
2557
2558static int snd_trident_vol_control_put(struct snd_kcontrol *kcontrol,
2559				       struct snd_ctl_elem_value *ucontrol)
2560{
2561	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2562	unsigned int val;
2563	int change = 0;
2564
2565	spin_lock_irq(&trident->reg_lock);
2566	val = trident->musicvol_wavevol;
2567	val &= ~(0xffff << kcontrol->private_value);
2568	val |= ((255 - (ucontrol->value.integer.value[0] & 0xff)) |
2569	        ((255 - (ucontrol->value.integer.value[1] & 0xff)) << 8)) << kcontrol->private_value;
2570	change = val != trident->musicvol_wavevol;
2571	outl(trident->musicvol_wavevol = val, TRID_REG(trident, T4D_MUSICVOL_WAVEVOL));
2572	spin_unlock_irq(&trident->reg_lock);
2573	return change;
2574}
2575
2576static const struct snd_kcontrol_new snd_trident_vol_music_control =
2577{
2578	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
2579	.name =         "Music Playback Volume",
2580	.info =		snd_trident_vol_control_info,
2581	.get =		snd_trident_vol_control_get,
2582	.put =		snd_trident_vol_control_put,
2583	.private_value = 16,
2584	.tlv = { .p = db_scale_gvol },
2585};
2586
2587static const struct snd_kcontrol_new snd_trident_vol_wave_control =
2588{
2589	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
2590	.name =         "Wave Playback Volume",
2591	.info =		snd_trident_vol_control_info,
2592	.get =		snd_trident_vol_control_get,
2593	.put =		snd_trident_vol_control_put,
2594	.private_value = 0,
2595	.tlv = { .p = db_scale_gvol },
2596};
2597
2598/*---------------------------------------------------------------------------
2599    snd_trident_pcm_vol_control
2600
2601    Description: PCM front volume control
2602  ---------------------------------------------------------------------------*/
2603
2604static int snd_trident_pcm_vol_control_info(struct snd_kcontrol *kcontrol,
2605					    struct snd_ctl_elem_info *uinfo)
2606{
2607	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2608
2609	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2610	uinfo->count = 1;
2611	uinfo->value.integer.min = 0;
2612	uinfo->value.integer.max = 255;
2613	if (trident->device == TRIDENT_DEVICE_ID_SI7018)
2614		uinfo->value.integer.max = 1023;
2615	return 0;
2616}
2617
2618static int snd_trident_pcm_vol_control_get(struct snd_kcontrol *kcontrol,
2619					   struct snd_ctl_elem_value *ucontrol)
2620{
2621	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2622	struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2623
2624	if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
2625		ucontrol->value.integer.value[0] = 1023 - mix->vol;
2626	} else {
2627		ucontrol->value.integer.value[0] = 255 - (mix->vol>>2);
2628	}
2629	return 0;
2630}
2631
2632static int snd_trident_pcm_vol_control_put(struct snd_kcontrol *kcontrol,
2633					   struct snd_ctl_elem_value *ucontrol)
2634{
2635	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2636	struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2637	unsigned int val;
2638	int change = 0;
2639
2640	if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
2641		val = 1023 - (ucontrol->value.integer.value[0] & 1023);
2642	} else {
2643		val = (255 - (ucontrol->value.integer.value[0] & 255)) << 2;
2644	}
2645	spin_lock_irq(&trident->reg_lock);
2646	change = val != mix->vol;
2647	mix->vol = val;
2648	if (mix->voice != NULL)
2649		snd_trident_write_vol_reg(trident, mix->voice, val);
2650	spin_unlock_irq(&trident->reg_lock);
2651	return change;
2652}
2653
2654static const struct snd_kcontrol_new snd_trident_pcm_vol_control =
2655{
2656	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
2657	.name =         "PCM Front Playback Volume",
2658	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2659	.count =	32,
2660	.info =		snd_trident_pcm_vol_control_info,
2661	.get =		snd_trident_pcm_vol_control_get,
2662	.put =		snd_trident_pcm_vol_control_put,
2663	/* FIXME: no tlv yet */
2664};
2665
2666/*---------------------------------------------------------------------------
2667    snd_trident_pcm_pan_control
2668
2669    Description: PCM front pan control
2670  ---------------------------------------------------------------------------*/
2671
2672static int snd_trident_pcm_pan_control_info(struct snd_kcontrol *kcontrol,
2673					    struct snd_ctl_elem_info *uinfo)
2674{
2675	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2676	uinfo->count = 1;
2677	uinfo->value.integer.min = 0;
2678	uinfo->value.integer.max = 127;
2679	return 0;
2680}
2681
2682static int snd_trident_pcm_pan_control_get(struct snd_kcontrol *kcontrol,
2683					   struct snd_ctl_elem_value *ucontrol)
2684{
2685	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2686	struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2687
2688	ucontrol->value.integer.value[0] = mix->pan;
2689	if (ucontrol->value.integer.value[0] & 0x40) {
2690		ucontrol->value.integer.value[0] = (0x3f - (ucontrol->value.integer.value[0] & 0x3f));
2691	} else {
2692		ucontrol->value.integer.value[0] |= 0x40;
2693	}
2694	return 0;
2695}
2696
2697static int snd_trident_pcm_pan_control_put(struct snd_kcontrol *kcontrol,
2698					   struct snd_ctl_elem_value *ucontrol)
2699{
2700	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2701	struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2702	unsigned char val;
2703	int change = 0;
2704
2705	if (ucontrol->value.integer.value[0] & 0x40)
2706		val = ucontrol->value.integer.value[0] & 0x3f;
2707	else
2708		val = (0x3f - (ucontrol->value.integer.value[0] & 0x3f)) | 0x40;
2709	spin_lock_irq(&trident->reg_lock);
2710	change = val != mix->pan;
2711	mix->pan = val;
2712	if (mix->voice != NULL)
2713		snd_trident_write_pan_reg(trident, mix->voice, val);
2714	spin_unlock_irq(&trident->reg_lock);
2715	return change;
2716}
2717
2718static const struct snd_kcontrol_new snd_trident_pcm_pan_control =
2719{
2720	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
2721	.name =         "PCM Pan Playback Control",
2722	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2723	.count =	32,
2724	.info =		snd_trident_pcm_pan_control_info,
2725	.get =		snd_trident_pcm_pan_control_get,
2726	.put =		snd_trident_pcm_pan_control_put,
2727};
2728
2729/*---------------------------------------------------------------------------
2730    snd_trident_pcm_rvol_control
2731
2732    Description: PCM reverb volume control
2733  ---------------------------------------------------------------------------*/
2734
2735static int snd_trident_pcm_rvol_control_info(struct snd_kcontrol *kcontrol,
2736					     struct snd_ctl_elem_info *uinfo)
2737{
2738	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2739	uinfo->count = 1;
2740	uinfo->value.integer.min = 0;
2741	uinfo->value.integer.max = 127;
2742	return 0;
2743}
2744
2745static int snd_trident_pcm_rvol_control_get(struct snd_kcontrol *kcontrol,
2746					    struct snd_ctl_elem_value *ucontrol)
2747{
2748	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2749	struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2750
2751	ucontrol->value.integer.value[0] = 127 - mix->rvol;
2752	return 0;
2753}
2754
2755static int snd_trident_pcm_rvol_control_put(struct snd_kcontrol *kcontrol,
2756					    struct snd_ctl_elem_value *ucontrol)
2757{
2758	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2759	struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2760	unsigned short val;
2761	int change = 0;
2762
2763	val = 0x7f - (ucontrol->value.integer.value[0] & 0x7f);
2764	spin_lock_irq(&trident->reg_lock);
2765	change = val != mix->rvol;
2766	mix->rvol = val;
2767	if (mix->voice != NULL)
2768		snd_trident_write_rvol_reg(trident, mix->voice, val);
2769	spin_unlock_irq(&trident->reg_lock);
2770	return change;
2771}
2772
2773static const DECLARE_TLV_DB_SCALE(db_scale_crvol, -3175, 25, 1);
2774
2775static const struct snd_kcontrol_new snd_trident_pcm_rvol_control =
2776{
2777	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
2778	.name =         "PCM Reverb Playback Volume",
2779	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2780	.count = 	32,
2781	.info =		snd_trident_pcm_rvol_control_info,
2782	.get =		snd_trident_pcm_rvol_control_get,
2783	.put =		snd_trident_pcm_rvol_control_put,
2784	.tlv = { .p = db_scale_crvol },
2785};
2786
2787/*---------------------------------------------------------------------------
2788    snd_trident_pcm_cvol_control
2789
2790    Description: PCM chorus volume control
2791  ---------------------------------------------------------------------------*/
2792
2793static int snd_trident_pcm_cvol_control_info(struct snd_kcontrol *kcontrol,
2794					     struct snd_ctl_elem_info *uinfo)
2795{
2796	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2797	uinfo->count = 1;
2798	uinfo->value.integer.min = 0;
2799	uinfo->value.integer.max = 127;
2800	return 0;
2801}
2802
2803static int snd_trident_pcm_cvol_control_get(struct snd_kcontrol *kcontrol,
2804					    struct snd_ctl_elem_value *ucontrol)
2805{
2806	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2807	struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2808
2809	ucontrol->value.integer.value[0] = 127 - mix->cvol;
2810	return 0;
2811}
2812
2813static int snd_trident_pcm_cvol_control_put(struct snd_kcontrol *kcontrol,
2814					    struct snd_ctl_elem_value *ucontrol)
2815{
2816	struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2817	struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2818	unsigned short val;
2819	int change = 0;
2820
2821	val = 0x7f - (ucontrol->value.integer.value[0] & 0x7f);
2822	spin_lock_irq(&trident->reg_lock);
2823	change = val != mix->cvol;
2824	mix->cvol = val;
2825	if (mix->voice != NULL)
2826		snd_trident_write_cvol_reg(trident, mix->voice, val);
2827	spin_unlock_irq(&trident->reg_lock);
2828	return change;
2829}
2830
2831static const struct snd_kcontrol_new snd_trident_pcm_cvol_control =
2832{
2833	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
2834	.name =         "PCM Chorus Playback Volume",
2835	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2836	.count =	32,
2837	.info =		snd_trident_pcm_cvol_control_info,
2838	.get =		snd_trident_pcm_cvol_control_get,
2839	.put =		snd_trident_pcm_cvol_control_put,
2840	.tlv = { .p = db_scale_crvol },
2841};
2842
2843static void snd_trident_notify_pcm_change1(struct snd_card *card,
2844					   struct snd_kcontrol *kctl,
2845					   int num, int activate)
2846{
2847	struct snd_ctl_elem_id id;
2848
2849	if (! kctl)
2850		return;
2851	if (activate)
2852		kctl->vd[num].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
2853	else
2854		kctl->vd[num].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
2855	snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE |
2856		       SNDRV_CTL_EVENT_MASK_INFO,
2857		       snd_ctl_build_ioff(&id, kctl, num));
2858}
2859
2860static void snd_trident_notify_pcm_change(struct snd_trident *trident,
2861					  struct snd_trident_pcm_mixer *tmix,
2862					  int num, int activate)
2863{
2864	snd_trident_notify_pcm_change1(trident->card, trident->ctl_vol, num, activate);
2865	snd_trident_notify_pcm_change1(trident->card, trident->ctl_pan, num, activate);
2866	snd_trident_notify_pcm_change1(trident->card, trident->ctl_rvol, num, activate);
2867	snd_trident_notify_pcm_change1(trident->card, trident->ctl_cvol, num, activate);
2868}
2869
2870static int snd_trident_pcm_mixer_build(struct snd_trident *trident,
2871				       struct snd_trident_voice *voice,
2872				       struct snd_pcm_substream *substream)
2873{
2874	struct snd_trident_pcm_mixer *tmix;
2875
2876	if (snd_BUG_ON(!trident || !voice || !substream))
2877		return -EINVAL;
2878	tmix = &trident->pcm_mixer[substream->number];
2879	tmix->voice = voice;
2880	tmix->vol = T4D_DEFAULT_PCM_VOL;
2881	tmix->pan = T4D_DEFAULT_PCM_PAN;
2882	tmix->rvol = T4D_DEFAULT_PCM_RVOL;
2883	tmix->cvol = T4D_DEFAULT_PCM_CVOL;
2884	snd_trident_notify_pcm_change(trident, tmix, substream->number, 1);
2885	return 0;
2886}
2887
2888static int snd_trident_pcm_mixer_free(struct snd_trident *trident, struct snd_trident_voice *voice, struct snd_pcm_substream *substream)
2889{
2890	struct snd_trident_pcm_mixer *tmix;
2891
2892	if (snd_BUG_ON(!trident || !substream))
2893		return -EINVAL;
2894	tmix = &trident->pcm_mixer[substream->number];
2895	tmix->voice = NULL;
2896	snd_trident_notify_pcm_change(trident, tmix, substream->number, 0);
2897	return 0;
2898}
2899
2900/*---------------------------------------------------------------------------
2901   snd_trident_mixer
2902
2903   Description: This routine registers the 4DWave device for mixer support.
2904
2905   Parameters:  trident - pointer to target device class for 4DWave.
2906
2907   Returns:     None
2908
2909  ---------------------------------------------------------------------------*/
2910
2911static int snd_trident_mixer(struct snd_trident *trident, int pcm_spdif_device)
2912{
2913	struct snd_ac97_template _ac97;
2914	struct snd_card *card = trident->card;
2915	struct snd_kcontrol *kctl;
2916	struct snd_ctl_elem_value *uctl;
2917	int idx, err, retries = 2;
2918	static const struct snd_ac97_bus_ops ops = {
2919		.write = snd_trident_codec_write,
2920		.read = snd_trident_codec_read,
2921	};
2922
2923	uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
2924	if (!uctl)
2925		return -ENOMEM;
2926
2927	err = snd_ac97_bus(trident->card, 0, &ops, NULL, &trident->ac97_bus);
2928	if (err < 0)
2929		goto __out;
2930
2931	memset(&_ac97, 0, sizeof(_ac97));
2932	_ac97.private_data = trident;
2933	trident->ac97_detect = 1;
2934
2935      __again:
2936	err = snd_ac97_mixer(trident->ac97_bus, &_ac97, &trident->ac97);
2937	if (err < 0) {
2938		if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
2939			err = snd_trident_sis_reset(trident);
2940			if (err < 0)
2941				goto __out;
2942			if (retries-- > 0)
2943				goto __again;
2944			err = -EIO;
2945		}
2946		goto __out;
2947	}
2948
2949	/* secondary codec? */
2950	if (trident->device == TRIDENT_DEVICE_ID_SI7018 &&
2951	    (inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL)) & SI_AC97_PRIMARY_READY) != 0) {
2952		_ac97.num = 1;
2953		err = snd_ac97_mixer(trident->ac97_bus, &_ac97, &trident->ac97_sec);
2954		if (err < 0)
2955			dev_err(trident->card->dev,
2956				"SI7018: the secondary codec - invalid access\n");
2957#if 0	// only for my testing purpose --jk
2958		{
2959			struct snd_ac97 *mc97;
2960			err = snd_ac97_modem(trident->card, &_ac97, &mc97);
2961			if (err < 0)
2962				dev_err(trident->card->dev,
2963					"snd_ac97_modem returned error %i\n", err);
2964		}
2965#endif
2966	}
2967
2968	trident->ac97_detect = 0;
2969
2970	if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
2971		kctl = snd_ctl_new1(&snd_trident_vol_wave_control, trident);
2972		err = snd_ctl_add(card, kctl);
2973		if (err < 0)
2974			goto __out;
2975		kctl->put(kctl, uctl);
2976		kctl = snd_ctl_new1(&snd_trident_vol_music_control, trident);
2977		err = snd_ctl_add(card, kctl);
2978		if (err < 0)
2979			goto __out;
2980		kctl->put(kctl, uctl);
2981		outl(trident->musicvol_wavevol = 0x00000000, TRID_REG(trident, T4D_MUSICVOL_WAVEVOL));
2982	} else {
2983		outl(trident->musicvol_wavevol = 0xffff0000, TRID_REG(trident, T4D_MUSICVOL_WAVEVOL));
2984	}
2985
2986	for (idx = 0; idx < 32; idx++) {
2987		struct snd_trident_pcm_mixer *tmix;
2988
2989		tmix = &trident->pcm_mixer[idx];
2990		tmix->voice = NULL;
2991	}
2992	trident->ctl_vol = snd_ctl_new1(&snd_trident_pcm_vol_control, trident);
2993	if (!trident->ctl_vol)
2994		goto __nomem;
2995	err = snd_ctl_add(card, trident->ctl_vol);
2996	if (err)
2997		goto __out;
2998
2999	trident->ctl_pan = snd_ctl_new1(&snd_trident_pcm_pan_control, trident);
3000	if (!trident->ctl_pan)
3001		goto __nomem;
3002	err = snd_ctl_add(card, trident->ctl_pan);
3003	if (err)
3004		goto __out;
3005
3006	trident->ctl_rvol = snd_ctl_new1(&snd_trident_pcm_rvol_control, trident);
3007	if (!trident->ctl_rvol)
3008		goto __nomem;
3009	err = snd_ctl_add(card, trident->ctl_rvol);
3010	if (err)
3011		goto __out;
3012
3013	trident->ctl_cvol = snd_ctl_new1(&snd_trident_pcm_cvol_control, trident);
3014	if (!trident->ctl_cvol)
3015		goto __nomem;
3016	err = snd_ctl_add(card, trident->ctl_cvol);
3017	if (err)
3018		goto __out;
3019
3020	if (trident->device == TRIDENT_DEVICE_ID_NX) {
3021		kctl = snd_ctl_new1(&snd_trident_ac97_rear_control, trident);
3022		err = snd_ctl_add(card, kctl);
3023		if (err < 0)
3024			goto __out;
3025		kctl->put(kctl, uctl);
3026	}
3027	if (trident->device == TRIDENT_DEVICE_ID_NX || trident->device == TRIDENT_DEVICE_ID_SI7018) {
3028
3029		kctl = snd_ctl_new1(&snd_trident_spdif_control, trident);
3030		if (kctl == NULL) {
3031			err = -ENOMEM;
3032			goto __out;
3033		}
3034		if (trident->ac97->ext_id & AC97_EI_SPDIF)
3035			kctl->id.index++;
3036		if (trident->ac97_sec && (trident->ac97_sec->ext_id & AC97_EI_SPDIF))
3037			kctl->id.index++;
3038		idx = kctl->id.index;
3039		err = snd_ctl_add(card, kctl);
3040		if (err < 0)
3041			goto __out;
3042		kctl->put(kctl, uctl);
3043
3044		kctl = snd_ctl_new1(&snd_trident_spdif_default, trident);
3045		if (kctl == NULL) {
3046			err = -ENOMEM;
3047			goto __out;
3048		}
3049		kctl->id.index = idx;
3050		kctl->id.device = pcm_spdif_device;
3051		err = snd_ctl_add(card, kctl);
3052		if (err < 0)
3053			goto __out;
3054
3055		kctl = snd_ctl_new1(&snd_trident_spdif_mask, trident);
3056		if (kctl == NULL) {
3057			err = -ENOMEM;
3058			goto __out;
3059		}
3060		kctl->id.index = idx;
3061		kctl->id.device = pcm_spdif_device;
3062		err = snd_ctl_add(card, kctl);
3063		if (err < 0)
3064			goto __out;
3065
3066		kctl = snd_ctl_new1(&snd_trident_spdif_stream, trident);
3067		if (kctl == NULL) {
3068			err = -ENOMEM;
3069			goto __out;
3070		}
3071		kctl->id.index = idx;
3072		kctl->id.device = pcm_spdif_device;
3073		err = snd_ctl_add(card, kctl);
3074		if (err < 0)
3075			goto __out;
3076		trident->spdif_pcm_ctl = kctl;
3077	}
3078
3079	err = 0;
3080	goto __out;
3081
3082 __nomem:
3083	err = -ENOMEM;
3084
3085 __out:
3086	kfree(uctl);
3087
3088	return err;
3089}
3090
3091/*
3092 * gameport interface
3093 */
3094
3095#if IS_REACHABLE(CONFIG_GAMEPORT)
3096
3097static unsigned char snd_trident_gameport_read(struct gameport *gameport)
3098{
3099	struct snd_trident *chip = gameport_get_port_data(gameport);
3100
3101	if (snd_BUG_ON(!chip))
3102		return 0;
3103	return inb(TRID_REG(chip, GAMEPORT_LEGACY));
3104}
3105
3106static void snd_trident_gameport_trigger(struct gameport *gameport)
3107{
3108	struct snd_trident *chip = gameport_get_port_data(gameport);
3109
3110	if (snd_BUG_ON(!chip))
3111		return;
3112	outb(0xff, TRID_REG(chip, GAMEPORT_LEGACY));
3113}
3114
3115static int snd_trident_gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
3116{
3117	struct snd_trident *chip = gameport_get_port_data(gameport);
3118	int i;
3119
3120	if (snd_BUG_ON(!chip))
3121		return 0;
3122
3123	*buttons = (~inb(TRID_REG(chip, GAMEPORT_LEGACY)) >> 4) & 0xf;
3124
3125	for (i = 0; i < 4; i++) {
3126		axes[i] = inw(TRID_REG(chip, GAMEPORT_AXES + i * 2));
3127		if (axes[i] == 0xffff) axes[i] = -1;
3128	}
3129
3130        return 0;
3131}
3132
3133static int snd_trident_gameport_open(struct gameport *gameport, int mode)
3134{
3135	struct snd_trident *chip = gameport_get_port_data(gameport);
3136
3137	if (snd_BUG_ON(!chip))
3138		return 0;
3139
3140	switch (mode) {
3141		case GAMEPORT_MODE_COOKED:
3142			outb(GAMEPORT_MODE_ADC, TRID_REG(chip, GAMEPORT_GCR));
3143			msleep(20);
3144			return 0;
3145		case GAMEPORT_MODE_RAW:
3146			outb(0, TRID_REG(chip, GAMEPORT_GCR));
3147			return 0;
3148		default:
3149			return -1;
3150	}
3151}
3152
3153int snd_trident_create_gameport(struct snd_trident *chip)
3154{
3155	struct gameport *gp;
3156
3157	chip->gameport = gp = gameport_allocate_port();
3158	if (!gp) {
3159		dev_err(chip->card->dev,
3160			"cannot allocate memory for gameport\n");
3161		return -ENOMEM;
3162	}
3163
3164	gameport_set_name(gp, "Trident 4DWave");
3165	gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
3166	gameport_set_dev_parent(gp, &chip->pci->dev);
3167
3168	gameport_set_port_data(gp, chip);
3169	gp->fuzz = 64;
3170	gp->read = snd_trident_gameport_read;
3171	gp->trigger = snd_trident_gameport_trigger;
3172	gp->cooked_read = snd_trident_gameport_cooked_read;
3173	gp->open = snd_trident_gameport_open;
3174
3175	gameport_register_port(gp);
3176
3177	return 0;
3178}
3179
3180static inline void snd_trident_free_gameport(struct snd_trident *chip)
3181{
3182	if (chip->gameport) {
3183		gameport_unregister_port(chip->gameport);
3184		chip->gameport = NULL;
3185	}
3186}
3187#else
3188int snd_trident_create_gameport(struct snd_trident *chip) { return -ENOSYS; }
3189static inline void snd_trident_free_gameport(struct snd_trident *chip) { }
3190#endif /* CONFIG_GAMEPORT */
3191
3192/*
3193 * delay for 1 tick
3194 */
3195static inline void do_delay(struct snd_trident *chip)
3196{
3197	schedule_timeout_uninterruptible(1);
3198}
3199
3200/*
3201 *  SiS reset routine
3202 */
3203
3204static int snd_trident_sis_reset(struct snd_trident *trident)
3205{
3206	unsigned long end_time;
3207	unsigned int i;
3208	int r;
3209
3210	r = trident->in_suspend ? 0 : 2;	/* count of retries */
3211      __si7018_retry:
3212	pci_write_config_byte(trident->pci, 0x46, 0x04);	/* SOFTWARE RESET */
3213	udelay(100);
3214	pci_write_config_byte(trident->pci, 0x46, 0x00);
3215	udelay(100);
3216	/* disable AC97 GPIO interrupt */
3217	outb(0x00, TRID_REG(trident, SI_AC97_GPIO));
3218	/* initialize serial interface, force cold reset */
3219	i = PCMOUT|SURROUT|CENTEROUT|LFEOUT|SECONDARY_ID|COLD_RESET;
3220	outl(i, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
3221	udelay(1000);
3222	/* remove cold reset */
3223	i &= ~COLD_RESET;
3224	outl(i, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
3225	udelay(2000);
3226	/* wait, until the codec is ready */
3227	end_time = (jiffies + (HZ * 3) / 4) + 1;
3228	do {
3229		if ((inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL)) & SI_AC97_PRIMARY_READY) != 0)
3230			goto __si7018_ok;
3231		do_delay(trident);
3232	} while (time_after_eq(end_time, jiffies));
3233	dev_err(trident->card->dev, "AC'97 codec ready error [0x%x]\n",
3234		inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL)));
3235	if (r-- > 0) {
3236		end_time = jiffies + HZ;
3237		do {
3238			do_delay(trident);
3239		} while (time_after_eq(end_time, jiffies));
3240		goto __si7018_retry;
3241	}
3242      __si7018_ok:
3243	/* wait for the second codec */
3244	do {
3245		if ((inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL)) & SI_AC97_SECONDARY_READY) != 0)
3246			break;
3247		do_delay(trident);
3248	} while (time_after_eq(end_time, jiffies));
3249	/* enable 64 channel mode */
3250	outl(BANK_B_EN, TRID_REG(trident, T4D_LFO_GC_CIR));
3251	return 0;
3252}
3253
3254/*
3255 *  /proc interface
3256 */
3257
3258static void snd_trident_proc_read(struct snd_info_entry *entry,
3259				  struct snd_info_buffer *buffer)
3260{
3261	struct snd_trident *trident = entry->private_data;
3262	char *s;
3263
3264	switch (trident->device) {
3265	case TRIDENT_DEVICE_ID_SI7018:
3266		s = "SiS 7018 Audio";
3267		break;
3268	case TRIDENT_DEVICE_ID_DX:
3269		s = "Trident 4DWave PCI DX";
3270		break;
3271	case TRIDENT_DEVICE_ID_NX:
3272		s = "Trident 4DWave PCI NX";
3273		break;
3274	default:
3275		s = "???";
3276	}
3277	snd_iprintf(buffer, "%s\n\n", s);
3278	snd_iprintf(buffer, "Spurious IRQs    : %d\n", trident->spurious_irq_count);
3279	snd_iprintf(buffer, "Spurious IRQ dlta: %d\n", trident->spurious_irq_max_delta);
3280	if (trident->device == TRIDENT_DEVICE_ID_NX || trident->device == TRIDENT_DEVICE_ID_SI7018)
3281		snd_iprintf(buffer, "IEC958 Mixer Out : %s\n", trident->spdif_ctrl == 0x28 ? "on" : "off");
3282	if (trident->device == TRIDENT_DEVICE_ID_NX) {
3283		snd_iprintf(buffer, "Rear Speakers    : %s\n", trident->ac97_ctrl & 0x00000010 ? "on" : "off");
3284		if (trident->tlb.entries) {
3285			snd_iprintf(buffer,"\nVirtual Memory\n");
3286			snd_iprintf(buffer, "Memory Maximum : %d\n", trident->tlb.memhdr->size);
3287			snd_iprintf(buffer, "Memory Used    : %d\n", trident->tlb.memhdr->used);
3288			snd_iprintf(buffer, "Memory Free    : %d\n", snd_util_mem_avail(trident->tlb.memhdr));
3289		}
3290	}
3291}
3292
3293static void snd_trident_proc_init(struct snd_trident *trident)
3294{
3295	const char *s = "trident";
3296
3297	if (trident->device == TRIDENT_DEVICE_ID_SI7018)
3298		s = "sis7018";
3299	snd_card_ro_proc_new(trident->card, s, trident, snd_trident_proc_read);
3300}
3301
3302/*---------------------------------------------------------------------------
3303   snd_trident_tlb_alloc
3304
3305   Description: Allocate and set up the TLB page table on 4D NX.
3306		Each entry has 4 bytes (physical PCI address).
3307
3308   Parameters:  trident - pointer to target device class for 4DWave.
3309
3310   Returns:     0 or negative error code
3311
3312  ---------------------------------------------------------------------------*/
3313
3314static int snd_trident_tlb_alloc(struct snd_trident *trident)
3315{
3316	int i;
3317
3318	/* TLB array must be aligned to 16kB !!! so we allocate
3319	   32kB region and correct offset when necessary */
3320
3321	trident->tlb.buffer =
3322		snd_devm_alloc_pages(&trident->pci->dev, SNDRV_DMA_TYPE_DEV,
3323				     2 * SNDRV_TRIDENT_MAX_PAGES * 4);
3324	if (!trident->tlb.buffer) {
3325		dev_err(trident->card->dev, "unable to allocate TLB buffer\n");
3326		return -ENOMEM;
3327	}
3328	trident->tlb.entries = (__le32 *)ALIGN((unsigned long)trident->tlb.buffer->area, SNDRV_TRIDENT_MAX_PAGES * 4);
3329	trident->tlb.entries_dmaaddr = ALIGN(trident->tlb.buffer->addr, SNDRV_TRIDENT_MAX_PAGES * 4);
3330
3331	/* allocate and setup silent page and initialise TLB entries */
3332	trident->tlb.silent_page =
3333		snd_devm_alloc_pages(&trident->pci->dev, SNDRV_DMA_TYPE_DEV,
3334				     SNDRV_TRIDENT_PAGE_SIZE);
3335	if (!trident->tlb.silent_page) {
3336		dev_err(trident->card->dev, "unable to allocate silent page\n");
3337		return -ENOMEM;
3338	}
3339	memset(trident->tlb.silent_page->area, 0, SNDRV_TRIDENT_PAGE_SIZE);
3340	for (i = 0; i < SNDRV_TRIDENT_MAX_PAGES; i++)
3341		trident->tlb.entries[i] = cpu_to_le32(trident->tlb.silent_page->addr & ~(SNDRV_TRIDENT_PAGE_SIZE-1));
3342
3343	/* use emu memory block manager code to manage tlb page allocation */
3344	trident->tlb.memhdr = snd_util_memhdr_new(SNDRV_TRIDENT_PAGE_SIZE * SNDRV_TRIDENT_MAX_PAGES);
3345	if (trident->tlb.memhdr == NULL)
3346		return -ENOMEM;
3347
3348	trident->tlb.memhdr->block_extra_size = sizeof(struct snd_trident_memblk_arg);
3349	return 0;
3350}
3351
3352/*
3353 * initialize 4D DX chip
3354 */
3355
3356static void snd_trident_stop_all_voices(struct snd_trident *trident)
3357{
3358	outl(0xffffffff, TRID_REG(trident, T4D_STOP_A));
3359	outl(0xffffffff, TRID_REG(trident, T4D_STOP_B));
3360	outl(0, TRID_REG(trident, T4D_AINTEN_A));
3361	outl(0, TRID_REG(trident, T4D_AINTEN_B));
3362}
3363
3364static int snd_trident_4d_dx_init(struct snd_trident *trident)
3365{
3366	struct pci_dev *pci = trident->pci;
3367	unsigned long end_time;
3368
3369	/* reset the legacy configuration and whole audio/wavetable block */
3370	pci_write_config_dword(pci, 0x40, 0);	/* DDMA */
3371	pci_write_config_byte(pci, 0x44, 0);	/* ports */
3372	pci_write_config_byte(pci, 0x45, 0);	/* Legacy DMA */
3373	pci_write_config_byte(pci, 0x46, 4); /* reset */
3374	udelay(100);
3375	pci_write_config_byte(pci, 0x46, 0); /* release reset */
3376	udelay(100);
3377
3378	/* warm reset of the AC'97 codec */
3379	outl(0x00000001, TRID_REG(trident, DX_ACR2_AC97_COM_STAT));
3380	udelay(100);
3381	outl(0x00000000, TRID_REG(trident, DX_ACR2_AC97_COM_STAT));
3382	/* DAC on, disable SB IRQ and try to force ADC valid signal */
3383	trident->ac97_ctrl = 0x0000004a;
3384	outl(trident->ac97_ctrl, TRID_REG(trident, DX_ACR2_AC97_COM_STAT));
3385	/* wait, until the codec is ready */
3386	end_time = (jiffies + (HZ * 3) / 4) + 1;
3387	do {
3388		if ((inl(TRID_REG(trident, DX_ACR2_AC97_COM_STAT)) & 0x0010) != 0)
3389			goto __dx_ok;
3390		do_delay(trident);
3391	} while (time_after_eq(end_time, jiffies));
3392	dev_err(trident->card->dev, "AC'97 codec ready error\n");
3393	return -EIO;
3394
3395 __dx_ok:
3396	snd_trident_stop_all_voices(trident);
3397
3398	return 0;
3399}
3400
3401/*
3402 * initialize 4D NX chip
3403 */
3404static int snd_trident_4d_nx_init(struct snd_trident *trident)
3405{
3406	struct pci_dev *pci = trident->pci;
3407	unsigned long end_time;
3408
3409	/* reset the legacy configuration and whole audio/wavetable block */
3410	pci_write_config_dword(pci, 0x40, 0);	/* DDMA */
3411	pci_write_config_byte(pci, 0x44, 0);	/* ports */
3412	pci_write_config_byte(pci, 0x45, 0);	/* Legacy DMA */
3413
3414	pci_write_config_byte(pci, 0x46, 1); /* reset */
3415	udelay(100);
3416	pci_write_config_byte(pci, 0x46, 0); /* release reset */
3417	udelay(100);
3418
3419	/* warm reset of the AC'97 codec */
3420	outl(0x00000001, TRID_REG(trident, NX_ACR0_AC97_COM_STAT));
3421	udelay(100);
3422	outl(0x00000000, TRID_REG(trident, NX_ACR0_AC97_COM_STAT));
3423	/* wait, until the codec is ready */
3424	end_time = (jiffies + (HZ * 3) / 4) + 1;
3425	do {
3426		if ((inl(TRID_REG(trident, NX_ACR0_AC97_COM_STAT)) & 0x0008) != 0)
3427			goto __nx_ok;
3428		do_delay(trident);
3429	} while (time_after_eq(end_time, jiffies));
3430	dev_err(trident->card->dev, "AC'97 codec ready error [0x%x]\n",
3431		inl(TRID_REG(trident, NX_ACR0_AC97_COM_STAT)));
3432	return -EIO;
3433
3434 __nx_ok:
3435	/* DAC on */
3436	trident->ac97_ctrl = 0x00000002;
3437	outl(trident->ac97_ctrl, TRID_REG(trident, NX_ACR0_AC97_COM_STAT));
3438	/* disable SB IRQ */
3439	outl(NX_SB_IRQ_DISABLE, TRID_REG(trident, T4D_MISCINT));
3440
3441	snd_trident_stop_all_voices(trident);
3442
3443	if (trident->tlb.entries != NULL) {
3444		unsigned int i;
3445		/* enable virtual addressing via TLB */
3446		i = trident->tlb.entries_dmaaddr;
3447		i |= 0x00000001;
3448		outl(i, TRID_REG(trident, NX_TLBC));
3449	} else {
3450		outl(0, TRID_REG(trident, NX_TLBC));
3451	}
3452	/* initialize S/PDIF */
3453	outl(trident->spdif_bits, TRID_REG(trident, NX_SPCSTATUS));
3454	outb(trident->spdif_ctrl, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
3455
3456	return 0;
3457}
3458
3459/*
3460 * initialize sis7018 chip
3461 */
3462static int snd_trident_sis_init(struct snd_trident *trident)
3463{
3464	int err;
3465
3466	err = snd_trident_sis_reset(trident);
3467	if (err < 0)
3468		return err;
3469
3470	snd_trident_stop_all_voices(trident);
3471
3472	/* initialize S/PDIF */
3473	outl(trident->spdif_bits, TRID_REG(trident, SI_SPDIF_CS));
3474
3475	return 0;
3476}
3477
3478/*---------------------------------------------------------------------------
3479   snd_trident_create
3480
3481   Description: This routine will create the device specific class for
3482                the 4DWave card. It will also perform basic initialization.
3483
3484   Parameters:  card  - which card to create
3485                pci   - interface to PCI bus resource info
3486                dma1ptr - playback dma buffer
3487                dma2ptr - capture dma buffer
3488                irqptr  -  interrupt resource info
3489
3490   Returns:     4DWave device class private data
3491
3492  ---------------------------------------------------------------------------*/
3493
3494int snd_trident_create(struct snd_card *card,
3495		       struct pci_dev *pci,
3496		       int pcm_streams,
3497		       int pcm_spdif_device,
3498		       int max_wavetable_size)
3499{
3500	struct snd_trident *trident = card->private_data;
3501	int i, err;
3502	struct snd_trident_voice *voice;
3503	struct snd_trident_pcm_mixer *tmix;
3504
3505	/* enable PCI device */
3506	err = pcim_enable_device(pci);
3507	if (err < 0)
3508		return err;
3509	/* check, if we can restrict PCI DMA transfers to 30 bits */
3510	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(30))) {
3511		dev_err(card->dev,
3512			"architecture does not support 30bit PCI busmaster DMA\n");
3513		return -ENXIO;
3514	}
3515
3516	trident->device = (pci->vendor << 16) | pci->device;
3517	trident->card = card;
3518	trident->pci = pci;
3519	spin_lock_init(&trident->reg_lock);
3520	spin_lock_init(&trident->event_lock);
3521	spin_lock_init(&trident->voice_alloc);
3522	if (pcm_streams < 1)
3523		pcm_streams = 1;
3524	if (pcm_streams > 32)
3525		pcm_streams = 32;
3526	trident->ChanPCM = pcm_streams;
3527	if (max_wavetable_size < 0 )
3528		max_wavetable_size = 0;
3529	trident->synth.max_size = max_wavetable_size * 1024;
3530	trident->irq = -1;
3531	card->private_free = snd_trident_free;
3532
3533	trident->midi_port = TRID_REG(trident, T4D_MPU401_BASE);
3534	pci_set_master(pci);
3535
3536	err = pci_request_regions(pci, "Trident Audio");
3537	if (err < 0)
3538		return err;
3539	trident->port = pci_resource_start(pci, 0);
3540
3541	if (devm_request_irq(&pci->dev, pci->irq, snd_trident_interrupt,
3542			     IRQF_SHARED, KBUILD_MODNAME, trident)) {
3543		dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
3544		return -EBUSY;
3545	}
3546	trident->irq = pci->irq;
3547	card->sync_irq = trident->irq;
3548
3549	/* allocate 16k-aligned TLB for NX cards */
3550	trident->tlb.entries = NULL;
3551	if (trident->device == TRIDENT_DEVICE_ID_NX) {
3552		err = snd_trident_tlb_alloc(trident);
3553		if (err < 0)
3554			return err;
3555	}
3556
3557	trident->spdif_bits = trident->spdif_pcm_bits = SNDRV_PCM_DEFAULT_CON_SPDIF;
3558
3559	/* initialize chip */
3560	switch (trident->device) {
3561	case TRIDENT_DEVICE_ID_DX:
3562		err = snd_trident_4d_dx_init(trident);
3563		break;
3564	case TRIDENT_DEVICE_ID_NX:
3565		err = snd_trident_4d_nx_init(trident);
3566		break;
3567	case TRIDENT_DEVICE_ID_SI7018:
3568		err = snd_trident_sis_init(trident);
3569		break;
3570	default:
3571		snd_BUG();
3572		break;
3573	}
3574	if (err < 0)
3575		return err;
3576
3577	err = snd_trident_mixer(trident, pcm_spdif_device);
3578	if (err < 0)
3579		return err;
3580
3581	/* initialise synth voices */
3582	for (i = 0; i < 64; i++) {
3583		voice = &trident->synth.voices[i];
3584		voice->number = i;
3585		voice->trident = trident;
3586	}
3587	/* initialize pcm mixer entries */
3588	for (i = 0; i < 32; i++) {
3589		tmix = &trident->pcm_mixer[i];
3590		tmix->vol = T4D_DEFAULT_PCM_VOL;
3591		tmix->pan = T4D_DEFAULT_PCM_PAN;
3592		tmix->rvol = T4D_DEFAULT_PCM_RVOL;
3593		tmix->cvol = T4D_DEFAULT_PCM_CVOL;
3594	}
3595
3596	snd_trident_enable_eso(trident);
3597
3598	snd_trident_proc_init(trident);
3599	return 0;
3600}
3601
3602/*---------------------------------------------------------------------------
3603   snd_trident_free
3604
3605   Description: This routine will free the device specific class for
3606                the 4DWave card.
3607
3608   Parameters:  card - card to release
3609
3610   Returns:     None.
3611
3612  ---------------------------------------------------------------------------*/
3613
3614static void snd_trident_free(struct snd_card *card)
3615{
3616	struct snd_trident *trident = card->private_data;
3617
3618	snd_trident_free_gameport(trident);
3619	snd_trident_disable_eso(trident);
3620	// Disable S/PDIF out
3621	if (trident->device == TRIDENT_DEVICE_ID_NX)
3622		outb(0x00, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
3623	else if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
3624		outl(0, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
3625	}
3626	if (trident->tlb.buffer) {
3627		outl(0, TRID_REG(trident, NX_TLBC));
3628		snd_util_memhdr_free(trident->tlb.memhdr);
3629	}
3630}
3631
3632/*---------------------------------------------------------------------------
3633   snd_trident_interrupt
3634
3635   Description: ISR for Trident 4DWave device
3636
3637   Parameters:  trident  - device specific private data for 4DWave card
3638
3639   Problems:    It seems that Trident chips generates interrupts more than
3640                one time in special cases. The spurious interrupts are
3641                detected via sample timer (T4D_STIMER) and computing
3642                corresponding delta value. The limits are detected with
3643                the method try & fail so it is possible that it won't
3644                work on all computers. [jaroslav]
3645
3646   Returns:     None.
3647
3648  ---------------------------------------------------------------------------*/
3649
3650static irqreturn_t snd_trident_interrupt(int irq, void *dev_id)
3651{
3652	struct snd_trident *trident = dev_id;
3653	unsigned int audio_int, chn_int, stimer, channel, mask, tmp;
3654	int delta;
3655	struct snd_trident_voice *voice;
3656
3657	audio_int = inl(TRID_REG(trident, T4D_MISCINT));
3658	if ((audio_int & (ADDRESS_IRQ|MPU401_IRQ)) == 0)
3659		return IRQ_NONE;
3660	if (audio_int & ADDRESS_IRQ) {
3661		// get interrupt status for all channels
3662		spin_lock(&trident->reg_lock);
3663		stimer = inl(TRID_REG(trident, T4D_STIMER)) & 0x00ffffff;
3664		chn_int = inl(TRID_REG(trident, T4D_AINT_A));
3665		if (chn_int == 0)
3666			goto __skip1;
3667		outl(chn_int, TRID_REG(trident, T4D_AINT_A));	/* ack */
3668	      __skip1:
3669		chn_int = inl(TRID_REG(trident, T4D_AINT_B));
3670		if (chn_int == 0)
3671			goto __skip2;
3672		for (channel = 63; channel >= 32; channel--) {
3673			mask = 1 << (channel&0x1f);
3674			if ((chn_int & mask) == 0)
3675				continue;
3676			voice = &trident->synth.voices[channel];
3677			if (!voice->pcm || voice->substream == NULL) {
3678				outl(mask, TRID_REG(trident, T4D_STOP_B));
3679				continue;
3680			}
3681			delta = (int)stimer - (int)voice->stimer;
3682			if (delta < 0)
3683				delta = -delta;
3684			if ((unsigned int)delta < voice->spurious_threshold) {
3685				/* do some statistics here */
3686				trident->spurious_irq_count++;
3687				if (trident->spurious_irq_max_delta < (unsigned int)delta)
3688					trident->spurious_irq_max_delta = delta;
3689				continue;
3690			}
3691			voice->stimer = stimer;
3692			if (voice->isync) {
3693				if (!voice->isync3) {
3694					tmp = inw(TRID_REG(trident, T4D_SBBL_SBCL));
3695					if (trident->bDMAStart & 0x40)
3696						tmp >>= 1;
3697					if (tmp > 0)
3698						tmp = voice->isync_max - tmp;
3699				} else {
3700					tmp = inl(TRID_REG(trident, NX_SPCTRL_SPCSO)) & 0x00ffffff;
3701				}
3702				if (tmp < voice->isync_mark) {
3703					if (tmp > 0x10)
3704						tmp = voice->isync_ESO - 7;
3705					else
3706						tmp = voice->isync_ESO + 2;
3707					/* update ESO for IRQ voice to preserve sync */
3708					snd_trident_stop_voice(trident, voice->number);
3709					snd_trident_write_eso_reg(trident, voice, tmp);
3710					snd_trident_start_voice(trident, voice->number);
3711				}
3712			} else if (voice->isync2) {
3713				voice->isync2 = 0;
3714				/* write original ESO and update CSO for IRQ voice to preserve sync */
3715				snd_trident_stop_voice(trident, voice->number);
3716				snd_trident_write_cso_reg(trident, voice, voice->isync_mark);
3717				snd_trident_write_eso_reg(trident, voice, voice->ESO);
3718				snd_trident_start_voice(trident, voice->number);
3719			}
3720#if 0
3721			if (voice->extra) {
3722				/* update CSO for extra voice to preserve sync */
3723				snd_trident_stop_voice(trident, voice->extra->number);
3724				snd_trident_write_cso_reg(trident, voice->extra, 0);
3725				snd_trident_start_voice(trident, voice->extra->number);
3726			}
3727#endif
3728			spin_unlock(&trident->reg_lock);
3729			snd_pcm_period_elapsed(voice->substream);
3730			spin_lock(&trident->reg_lock);
3731		}
3732		outl(chn_int, TRID_REG(trident, T4D_AINT_B));	/* ack */
3733	      __skip2:
3734		spin_unlock(&trident->reg_lock);
3735	}
3736	if (audio_int & MPU401_IRQ) {
3737		if (trident->rmidi) {
3738			snd_mpu401_uart_interrupt(irq, trident->rmidi->private_data);
3739		} else {
3740			inb(TRID_REG(trident, T4D_MPUR0));
3741		}
3742	}
3743	// outl((ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW), TRID_REG(trident, T4D_MISCINT));
3744	return IRQ_HANDLED;
3745}
3746
3747struct snd_trident_voice *snd_trident_alloc_voice(struct snd_trident * trident, int type, int client, int port)
3748{
3749	struct snd_trident_voice *pvoice;
3750	unsigned long flags;
3751	int idx;
3752
3753	spin_lock_irqsave(&trident->voice_alloc, flags);
3754	if (type == SNDRV_TRIDENT_VOICE_TYPE_PCM) {
3755		idx = snd_trident_allocate_pcm_channel(trident);
3756		if(idx < 0) {
3757			spin_unlock_irqrestore(&trident->voice_alloc, flags);
3758			return NULL;
3759		}
3760		pvoice = &trident->synth.voices[idx];
3761		pvoice->use = 1;
3762		pvoice->pcm = 1;
3763		pvoice->capture = 0;
3764		pvoice->spdif = 0;
3765		pvoice->memblk = NULL;
3766		pvoice->substream = NULL;
3767		spin_unlock_irqrestore(&trident->voice_alloc, flags);
3768		return pvoice;
3769	}
3770	if (type == SNDRV_TRIDENT_VOICE_TYPE_SYNTH) {
3771		idx = snd_trident_allocate_synth_channel(trident);
3772		if(idx < 0) {
3773			spin_unlock_irqrestore(&trident->voice_alloc, flags);
3774			return NULL;
3775		}
3776		pvoice = &trident->synth.voices[idx];
3777		pvoice->use = 1;
3778		pvoice->synth = 1;
3779		pvoice->client = client;
3780		pvoice->port = port;
3781		pvoice->memblk = NULL;
3782		spin_unlock_irqrestore(&trident->voice_alloc, flags);
3783		return pvoice;
3784	}
3785	if (type == SNDRV_TRIDENT_VOICE_TYPE_MIDI) {
3786	}
3787	spin_unlock_irqrestore(&trident->voice_alloc, flags);
3788	return NULL;
3789}
3790
3791EXPORT_SYMBOL(snd_trident_alloc_voice);
3792
3793void snd_trident_free_voice(struct snd_trident * trident, struct snd_trident_voice *voice)
3794{
3795	unsigned long flags;
3796	void (*private_free)(struct snd_trident_voice *);
3797
3798	if (voice == NULL || !voice->use)
3799		return;
3800	snd_trident_clear_voices(trident, voice->number, voice->number);
3801	spin_lock_irqsave(&trident->voice_alloc, flags);
3802	private_free = voice->private_free;
3803	voice->private_free = NULL;
3804	voice->private_data = NULL;
3805	if (voice->pcm)
3806		snd_trident_free_pcm_channel(trident, voice->number);
3807	if (voice->synth)
3808		snd_trident_free_synth_channel(trident, voice->number);
3809	voice->use = voice->pcm = voice->synth = voice->midi = 0;
3810	voice->capture = voice->spdif = 0;
3811	voice->sample_ops = NULL;
3812	voice->substream = NULL;
3813	voice->extra = NULL;
3814	spin_unlock_irqrestore(&trident->voice_alloc, flags);
3815	if (private_free)
3816		private_free(voice);
3817}
3818
3819EXPORT_SYMBOL(snd_trident_free_voice);
3820
3821static void snd_trident_clear_voices(struct snd_trident * trident, unsigned short v_min, unsigned short v_max)
3822{
3823	unsigned int i, val, mask[2] = { 0, 0 };
3824
3825	if (snd_BUG_ON(v_min > 63 || v_max > 63))
3826		return;
3827	for (i = v_min; i <= v_max; i++)
3828		mask[i >> 5] |= 1 << (i & 0x1f);
3829	if (mask[0]) {
3830		outl(mask[0], TRID_REG(trident, T4D_STOP_A));
3831		val = inl(TRID_REG(trident, T4D_AINTEN_A));
3832		outl(val & ~mask[0], TRID_REG(trident, T4D_AINTEN_A));
3833	}
3834	if (mask[1]) {
3835		outl(mask[1], TRID_REG(trident, T4D_STOP_B));
3836		val = inl(TRID_REG(trident, T4D_AINTEN_B));
3837		outl(val & ~mask[1], TRID_REG(trident, T4D_AINTEN_B));
3838	}
3839}
3840
3841#ifdef CONFIG_PM_SLEEP
3842static int snd_trident_suspend(struct device *dev)
3843{
3844	struct snd_card *card = dev_get_drvdata(dev);
3845	struct snd_trident *trident = card->private_data;
3846
3847	trident->in_suspend = 1;
3848	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
3849	snd_ac97_suspend(trident->ac97);
3850	snd_ac97_suspend(trident->ac97_sec);
3851	return 0;
3852}
3853
3854static int snd_trident_resume(struct device *dev)
3855{
3856	struct snd_card *card = dev_get_drvdata(dev);
3857	struct snd_trident *trident = card->private_data;
3858
3859	switch (trident->device) {
3860	case TRIDENT_DEVICE_ID_DX:
3861		snd_trident_4d_dx_init(trident);
3862		break;
3863	case TRIDENT_DEVICE_ID_NX:
3864		snd_trident_4d_nx_init(trident);
3865		break;
3866	case TRIDENT_DEVICE_ID_SI7018:
3867		snd_trident_sis_init(trident);
3868		break;
3869	}
3870
3871	snd_ac97_resume(trident->ac97);
3872	snd_ac97_resume(trident->ac97_sec);
3873
3874	/* restore some registers */
3875	outl(trident->musicvol_wavevol, TRID_REG(trident, T4D_MUSICVOL_WAVEVOL));
3876
3877	snd_trident_enable_eso(trident);
3878
3879	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
3880	trident->in_suspend = 0;
3881	return 0;
3882}
3883
3884SIMPLE_DEV_PM_OPS(snd_trident_pm, snd_trident_suspend, snd_trident_resume);
3885#endif /* CONFIG_PM_SLEEP */
3886