[ALSA] Various fixes for suspend/resume of ALSA PCI drivers
[linux-2.6.git] / sound / pci / cs46xx / cs46xx_lib.c
1 /*
2  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
3  *                   Abramo Bagnara <abramo@alsa-project.org>
4  *                   Cirrus Logic, Inc.
5  *  Routines for control of Cirrus Logic CS461x chips
6  *
7  *  KNOWN BUGS:
8  *    - Sometimes the SPDIF input DSP tasks get's unsynchronized
9  *      and the SPDIF get somewhat "distorcionated", or/and left right channel
10  *      are swapped. To get around this problem when it happens, mute and unmute 
11  *      the SPDIF input mixer controll.
12  *    - On the Hercules Game Theater XP the amplifier are sometimes turned
13  *      off on inadecuate moments which causes distorcions on sound.
14  *
15  *  TODO:
16  *    - Secondary CODEC on some soundcards
17  *    - SPDIF input support for other sample rates then 48khz
18  *    - Posibility to mix the SPDIF output with analog sources.
19  *    - PCM channels for Center and LFE on secondary codec
20  *
21  *  NOTE: with CONFIG_SND_CS46XX_NEW_DSP unset uses old DSP image (which
22  *        is default configuration), no SPDIF, no secondary codec, no
23  *        multi channel PCM.  But known to work.
24  *
25  *  FINALLY: A credit to the developers Tom and Jordan 
26  *           at Cirrus for have helping me out with the DSP, however we
27  *           still don't have sufficient documentation and technical
28  *           references to be able to implement all fancy feutures
29  *           supported by the cs46xx DSP's. 
30  *           Benny <benny@hostmobility.com>
31  *                
32  *   This program is free software; you can redistribute it and/or modify
33  *   it under the terms of the GNU General Public License as published by
34  *   the Free Software Foundation; either version 2 of the License, or
35  *   (at your option) any later version.
36  *
37  *   This program is distributed in the hope that it will be useful,
38  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
39  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
40  *   GNU General Public License for more details.
41  *
42  *   You should have received a copy of the GNU General Public License
43  *   along with this program; if not, write to the Free Software
44  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
45  *
46  */
47
48 #include <sound/driver.h>
49 #include <linux/delay.h>
50 #include <linux/pci.h>
51 #include <linux/pm.h>
52 #include <linux/init.h>
53 #include <linux/interrupt.h>
54 #include <linux/slab.h>
55 #include <linux/gameport.h>
56 #include <linux/mutex.h>
57
58
59 #include <sound/core.h>
60 #include <sound/control.h>
61 #include <sound/info.h>
62 #include <sound/pcm.h>
63 #include <sound/pcm_params.h>
64 #include <sound/cs46xx.h>
65
66 #include <asm/io.h>
67
68 #include "cs46xx_lib.h"
69 #include "dsp_spos.h"
70
71 static void amp_voyetra(struct snd_cs46xx *chip, int change);
72
73 #ifdef CONFIG_SND_CS46XX_NEW_DSP
74 static struct snd_pcm_ops snd_cs46xx_playback_rear_ops;
75 static struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops;
76 static struct snd_pcm_ops snd_cs46xx_playback_clfe_ops;
77 static struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops;
78 static struct snd_pcm_ops snd_cs46xx_playback_iec958_ops;
79 static struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops;
80 #endif
81
82 static struct snd_pcm_ops snd_cs46xx_playback_ops;
83 static struct snd_pcm_ops snd_cs46xx_playback_indirect_ops;
84 static struct snd_pcm_ops snd_cs46xx_capture_ops;
85 static struct snd_pcm_ops snd_cs46xx_capture_indirect_ops;
86
87 static unsigned short snd_cs46xx_codec_read(struct snd_cs46xx *chip,
88                                             unsigned short reg,
89                                             int codec_index)
90 {
91         int count;
92         unsigned short result,tmp;
93         u32 offset = 0;
94         snd_assert ( (codec_index == CS46XX_PRIMARY_CODEC_INDEX) ||
95                      (codec_index == CS46XX_SECONDARY_CODEC_INDEX),
96                      return -EINVAL);
97
98         chip->active_ctrl(chip, 1);
99
100         if (codec_index == CS46XX_SECONDARY_CODEC_INDEX)
101                 offset = CS46XX_SECONDARY_CODEC_OFFSET;
102
103         /*
104          *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
105          *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97 
106          *  3. Write ACCTL = Control Register = 460h for initiating the write7---55
107          *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h
108          *  5. if DCV not cleared, break and return error
109          *  6. Read ACSTS = Status Register = 464h, check VSTS bit
110          */
111
112         snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
113
114         tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL);
115         if ((tmp & ACCTL_VFRM) == 0) {
116                 snd_printk(KERN_WARNING  "cs46xx: ACCTL_VFRM not set 0x%x\n",tmp);
117                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, (tmp & (~ACCTL_ESYN)) | ACCTL_VFRM );
118                 msleep(50);
119                 tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL + offset);
120                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, tmp | ACCTL_ESYN | ACCTL_VFRM );
121
122         }
123
124         /*
125          *  Setup the AC97 control registers on the CS461x to send the
126          *  appropriate command to the AC97 to perform the read.
127          *  ACCAD = Command Address Register = 46Ch
128          *  ACCDA = Command Data Register = 470h
129          *  ACCTL = Control Register = 460h
130          *  set DCV - will clear when process completed
131          *  set CRW - Read command
132          *  set VFRM - valid frame enabled
133          *  set ESYN - ASYNC generation enabled
134          *  set RSTN - ARST# inactive, AC97 codec not reset
135          */
136
137         snd_cs46xx_pokeBA0(chip, BA0_ACCAD, reg);
138         snd_cs46xx_pokeBA0(chip, BA0_ACCDA, 0);
139         if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
140                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL,/* clear ACCTL_DCV */ ACCTL_CRW | 
141                                    ACCTL_VFRM | ACCTL_ESYN |
142                                    ACCTL_RSTN);
143                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_CRW |
144                                    ACCTL_VFRM | ACCTL_ESYN |
145                                    ACCTL_RSTN);
146         } else {
147                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
148                                    ACCTL_CRW | ACCTL_VFRM | ACCTL_ESYN |
149                                    ACCTL_RSTN);
150         }
151
152         /*
153          *  Wait for the read to occur.
154          */
155         for (count = 0; count < 1000; count++) {
156                 /*
157                  *  First, we want to wait for a short time.
158                  */
159                 udelay(10);
160                 /*
161                  *  Now, check to see if the read has completed.
162                  *  ACCTL = 460h, DCV should be reset by now and 460h = 17h
163                  */
164                 if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV))
165                         goto ok1;
166         }
167
168         snd_printk(KERN_ERR "AC'97 read problem (ACCTL_DCV), reg = 0x%x\n", reg);
169         result = 0xffff;
170         goto end;
171         
172  ok1:
173         /*
174          *  Wait for the valid status bit to go active.
175          */
176         for (count = 0; count < 100; count++) {
177                 /*
178                  *  Read the AC97 status register.
179                  *  ACSTS = Status Register = 464h
180                  *  VSTS - Valid Status
181                  */
182                 if (snd_cs46xx_peekBA0(chip, BA0_ACSTS + offset) & ACSTS_VSTS)
183                         goto ok2;
184                 udelay(10);
185         }
186         
187         snd_printk(KERN_ERR "AC'97 read problem (ACSTS_VSTS), codec_index %d, reg = 0x%x\n", codec_index, reg);
188         result = 0xffff;
189         goto end;
190
191  ok2:
192         /*
193          *  Read the data returned from the AC97 register.
194          *  ACSDA = Status Data Register = 474h
195          */
196 #if 0
197         printk("e) reg = 0x%x, val = 0x%x, BA0_ACCAD = 0x%x\n", reg,
198                         snd_cs46xx_peekBA0(chip, BA0_ACSDA),
199                         snd_cs46xx_peekBA0(chip, BA0_ACCAD));
200 #endif
201
202         //snd_cs46xx_peekBA0(chip, BA0_ACCAD);
203         result = snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
204  end:
205         chip->active_ctrl(chip, -1);
206         return result;
207 }
208
209 static unsigned short snd_cs46xx_ac97_read(struct snd_ac97 * ac97,
210                                             unsigned short reg)
211 {
212         struct snd_cs46xx *chip = ac97->private_data;
213         unsigned short val;
214         int codec_index = ac97->num;
215
216         snd_assert(codec_index == CS46XX_PRIMARY_CODEC_INDEX ||
217                    codec_index == CS46XX_SECONDARY_CODEC_INDEX,
218                    return 0xffff);
219
220         val = snd_cs46xx_codec_read(chip, reg, codec_index);
221
222         return val;
223 }
224
225
226 static void snd_cs46xx_codec_write(struct snd_cs46xx *chip,
227                                    unsigned short reg,
228                                    unsigned short val,
229                                    int codec_index)
230 {
231         int count;
232
233         snd_assert ((codec_index == CS46XX_PRIMARY_CODEC_INDEX) ||
234                     (codec_index == CS46XX_SECONDARY_CODEC_INDEX),
235                     return);
236
237         chip->active_ctrl(chip, 1);
238
239         /*
240          *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
241          *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97
242          *  3. Write ACCTL = Control Register = 460h for initiating the write
243          *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h
244          *  5. if DCV not cleared, break and return error
245          */
246
247         /*
248          *  Setup the AC97 control registers on the CS461x to send the
249          *  appropriate command to the AC97 to perform the read.
250          *  ACCAD = Command Address Register = 46Ch
251          *  ACCDA = Command Data Register = 470h
252          *  ACCTL = Control Register = 460h
253          *  set DCV - will clear when process completed
254          *  reset CRW - Write command
255          *  set VFRM - valid frame enabled
256          *  set ESYN - ASYNC generation enabled
257          *  set RSTN - ARST# inactive, AC97 codec not reset
258          */
259         snd_cs46xx_pokeBA0(chip, BA0_ACCAD , reg);
260         snd_cs46xx_pokeBA0(chip, BA0_ACCDA , val);
261         snd_cs46xx_peekBA0(chip, BA0_ACCTL);
262
263         if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
264                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, /* clear ACCTL_DCV */ ACCTL_VFRM |
265                                    ACCTL_ESYN | ACCTL_RSTN);
266                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_VFRM |
267                                    ACCTL_ESYN | ACCTL_RSTN);
268         } else {
269                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
270                                    ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
271         }
272
273         for (count = 0; count < 4000; count++) {
274                 /*
275                  *  First, we want to wait for a short time.
276                  */
277                 udelay(10);
278                 /*
279                  *  Now, check to see if the write has completed.
280                  *  ACCTL = 460h, DCV should be reset by now and 460h = 07h
281                  */
282                 if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV)) {
283                         goto end;
284                 }
285         }
286         snd_printk(KERN_ERR "AC'97 write problem, codec_index = %d, reg = 0x%x, val = 0x%x\n", codec_index, reg, val);
287  end:
288         chip->active_ctrl(chip, -1);
289 }
290
291 static void snd_cs46xx_ac97_write(struct snd_ac97 *ac97,
292                                    unsigned short reg,
293                                    unsigned short val)
294 {
295         struct snd_cs46xx *chip = ac97->private_data;
296         int codec_index = ac97->num;
297
298         snd_assert(codec_index == CS46XX_PRIMARY_CODEC_INDEX ||
299                    codec_index == CS46XX_SECONDARY_CODEC_INDEX,
300                    return);
301
302         snd_cs46xx_codec_write(chip, reg, val, codec_index);
303 }
304
305
306 /*
307  *  Chip initialization
308  */
309
310 int snd_cs46xx_download(struct snd_cs46xx *chip,
311                         u32 *src,
312                         unsigned long offset,
313                         unsigned long len)
314 {
315         void __iomem *dst;
316         unsigned int bank = offset >> 16;
317         offset = offset & 0xffff;
318
319         snd_assert(!(offset & 3) && !(len & 3), return -EINVAL);
320         dst = chip->region.idx[bank+1].remap_addr + offset;
321         len /= sizeof(u32);
322
323         /* writel already converts 32-bit value to right endianess */
324         while (len-- > 0) {
325                 writel(*src++, dst);
326                 dst += sizeof(u32);
327         }
328         return 0;
329 }
330
331 #ifdef CONFIG_SND_CS46XX_NEW_DSP
332
333 #include "imgs/cwc4630.h"
334 #include "imgs/cwcasync.h"
335 #include "imgs/cwcsnoop.h"
336 #include "imgs/cwcbinhack.h"
337 #include "imgs/cwcdma.h"
338
339 int snd_cs46xx_clear_BA1(struct snd_cs46xx *chip,
340                          unsigned long offset,
341                          unsigned long len) 
342 {
343         void __iomem *dst;
344         unsigned int bank = offset >> 16;
345         offset = offset & 0xffff;
346
347         snd_assert(!(offset & 3) && !(len & 3), return -EINVAL);
348         dst = chip->region.idx[bank+1].remap_addr + offset;
349         len /= sizeof(u32);
350
351         /* writel already converts 32-bit value to right endianess */
352         while (len-- > 0) {
353                 writel(0, dst);
354                 dst += sizeof(u32);
355         }
356         return 0;
357 }
358
359 #else /* old DSP image */
360
361 #include "cs46xx_image.h"
362
363 int snd_cs46xx_download_image(struct snd_cs46xx *chip)
364 {
365         int idx, err;
366         unsigned long offset = 0;
367
368         for (idx = 0; idx < BA1_MEMORY_COUNT; idx++) {
369                 if ((err = snd_cs46xx_download(chip,
370                                                &BA1Struct.map[offset],
371                                                BA1Struct.memory[idx].offset,
372                                                BA1Struct.memory[idx].size)) < 0)
373                         return err;
374                 offset += BA1Struct.memory[idx].size >> 2;
375         }       
376         return 0;
377 }
378 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
379
380 /*
381  *  Chip reset
382  */
383
384 static void snd_cs46xx_reset(struct snd_cs46xx *chip)
385 {
386         int idx;
387
388         /*
389          *  Write the reset bit of the SP control register.
390          */
391         snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RSTSP);
392
393         /*
394          *  Write the control register.
395          */
396         snd_cs46xx_poke(chip, BA1_SPCR, SPCR_DRQEN);
397
398         /*
399          *  Clear the trap registers.
400          */
401         for (idx = 0; idx < 8; idx++) {
402                 snd_cs46xx_poke(chip, BA1_DREG, DREG_REGID_TRAP_SELECT + idx);
403                 snd_cs46xx_poke(chip, BA1_TWPR, 0xFFFF);
404         }
405         snd_cs46xx_poke(chip, BA1_DREG, 0);
406
407         /*
408          *  Set the frame timer to reflect the number of cycles per frame.
409          */
410         snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
411 }
412
413 static int cs46xx_wait_for_fifo(struct snd_cs46xx * chip,int retry_timeout) 
414 {
415         u32 i, status = 0;
416         /*
417          * Make sure the previous FIFO write operation has completed.
418          */
419         for(i = 0; i < 50; i++){
420                 status = snd_cs46xx_peekBA0(chip, BA0_SERBST);
421     
422                 if( !(status & SERBST_WBSY) )
423                         break;
424
425                 mdelay(retry_timeout);
426         }
427   
428         if(status & SERBST_WBSY) {
429                 snd_printk( KERN_ERR "cs46xx: failure waiting for FIFO command to complete\n");
430
431                 return -EINVAL;
432         }
433
434         return 0;
435 }
436
437 static void snd_cs46xx_clear_serial_FIFOs(struct snd_cs46xx *chip)
438 {
439         int idx, powerdown = 0;
440         unsigned int tmp;
441
442         /*
443          *  See if the devices are powered down.  If so, we must power them up first
444          *  or they will not respond.
445          */
446         tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
447         if (!(tmp & CLKCR1_SWCE)) {
448                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
449                 powerdown = 1;
450         }
451
452         /*
453          *  We want to clear out the serial port FIFOs so we don't end up playing
454          *  whatever random garbage happens to be in them.  We fill the sample FIFOS
455          *  with zero (silence).
456          */
457         snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0);
458
459         /*
460          *  Fill all 256 sample FIFO locations.
461          */
462         for (idx = 0; idx < 0xFF; idx++) {
463                 /*
464                  *  Make sure the previous FIFO write operation has completed.
465                  */
466                 if (cs46xx_wait_for_fifo(chip,1)) {
467                         snd_printdd ("failed waiting for FIFO at addr (%02X)\n",idx);
468
469                         if (powerdown)
470                                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
471           
472                         break;
473                 }
474                 /*
475                  *  Write the serial port FIFO index.
476                  */
477                 snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
478                 /*
479                  *  Tell the serial port to load the new value into the FIFO location.
480                  */
481                 snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
482         }
483         /*
484          *  Now, if we powered up the devices, then power them back down again.
485          *  This is kinda ugly, but should never happen.
486          */
487         if (powerdown)
488                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
489 }
490
491 static void snd_cs46xx_proc_start(struct snd_cs46xx *chip)
492 {
493         int cnt;
494
495         /*
496          *  Set the frame timer to reflect the number of cycles per frame.
497          */
498         snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
499         /*
500          *  Turn on the run, run at frame, and DMA enable bits in the local copy of
501          *  the SP control register.
502          */
503         snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
504         /*
505          *  Wait until the run at frame bit resets itself in the SP control
506          *  register.
507          */
508         for (cnt = 0; cnt < 25; cnt++) {
509                 udelay(50);
510                 if (!(snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR))
511                         break;
512         }
513
514         if (snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR)
515                 snd_printk(KERN_ERR "SPCR_RUNFR never reset\n");
516 }
517
518 static void snd_cs46xx_proc_stop(struct snd_cs46xx *chip)
519 {
520         /*
521          *  Turn off the run, run at frame, and DMA enable bits in the local copy of
522          *  the SP control register.
523          */
524         snd_cs46xx_poke(chip, BA1_SPCR, 0);
525 }
526
527 /*
528  *  Sample rate routines
529  */
530
531 #define GOF_PER_SEC 200
532
533 static void snd_cs46xx_set_play_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
534 {
535         unsigned long flags;
536         unsigned int tmp1, tmp2;
537         unsigned int phiIncr;
538         unsigned int correctionPerGOF, correctionPerSec;
539
540         /*
541          *  Compute the values used to drive the actual sample rate conversion.
542          *  The following formulas are being computed, using inline assembly
543          *  since we need to use 64 bit arithmetic to compute the values:
544          *
545          *  phiIncr = floor((Fs,in * 2^26) / Fs,out)
546          *  correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
547          *                                   GOF_PER_SEC)
548          *  ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
549          *                       GOF_PER_SEC * correctionPerGOF
550          *
551          *  i.e.
552          *
553          *  phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
554          *  correctionPerGOF:correctionPerSec =
555          *      dividend:remainder(ulOther / GOF_PER_SEC)
556          */
557         tmp1 = rate << 16;
558         phiIncr = tmp1 / 48000;
559         tmp1 -= phiIncr * 48000;
560         tmp1 <<= 10;
561         phiIncr <<= 10;
562         tmp2 = tmp1 / 48000;
563         phiIncr += tmp2;
564         tmp1 -= tmp2 * 48000;
565         correctionPerGOF = tmp1 / GOF_PER_SEC;
566         tmp1 -= correctionPerGOF * GOF_PER_SEC;
567         correctionPerSec = tmp1;
568
569         /*
570          *  Fill in the SampleRateConverter control block.
571          */
572         spin_lock_irqsave(&chip->reg_lock, flags);
573         snd_cs46xx_poke(chip, BA1_PSRC,
574           ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
575         snd_cs46xx_poke(chip, BA1_PPI, phiIncr);
576         spin_unlock_irqrestore(&chip->reg_lock, flags);
577 }
578
579 static void snd_cs46xx_set_capture_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
580 {
581         unsigned long flags;
582         unsigned int phiIncr, coeffIncr, tmp1, tmp2;
583         unsigned int correctionPerGOF, correctionPerSec, initialDelay;
584         unsigned int frameGroupLength, cnt;
585
586         /*
587          *  We can only decimate by up to a factor of 1/9th the hardware rate.
588          *  Correct the value if an attempt is made to stray outside that limit.
589          */
590         if ((rate * 9) < 48000)
591                 rate = 48000 / 9;
592
593         /*
594          *  We can not capture at at rate greater than the Input Rate (48000).
595          *  Return an error if an attempt is made to stray outside that limit.
596          */
597         if (rate > 48000)
598                 rate = 48000;
599
600         /*
601          *  Compute the values used to drive the actual sample rate conversion.
602          *  The following formulas are being computed, using inline assembly
603          *  since we need to use 64 bit arithmetic to compute the values:
604          *
605          *     coeffIncr = -floor((Fs,out * 2^23) / Fs,in)
606          *     phiIncr = floor((Fs,in * 2^26) / Fs,out)
607          *     correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
608          *                                GOF_PER_SEC)
609          *     correctionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
610          *                          GOF_PER_SEC * correctionPerGOF
611          *     initialDelay = ceil((24 * Fs,in) / Fs,out)
612          *
613          * i.e.
614          *
615          *     coeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in))
616          *     phiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
617          *     correctionPerGOF:correctionPerSec =
618          *          dividend:remainder(ulOther / GOF_PER_SEC)
619          *     initialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out)
620          */
621
622         tmp1 = rate << 16;
623         coeffIncr = tmp1 / 48000;
624         tmp1 -= coeffIncr * 48000;
625         tmp1 <<= 7;
626         coeffIncr <<= 7;
627         coeffIncr += tmp1 / 48000;
628         coeffIncr ^= 0xFFFFFFFF;
629         coeffIncr++;
630         tmp1 = 48000 << 16;
631         phiIncr = tmp1 / rate;
632         tmp1 -= phiIncr * rate;
633         tmp1 <<= 10;
634         phiIncr <<= 10;
635         tmp2 = tmp1 / rate;
636         phiIncr += tmp2;
637         tmp1 -= tmp2 * rate;
638         correctionPerGOF = tmp1 / GOF_PER_SEC;
639         tmp1 -= correctionPerGOF * GOF_PER_SEC;
640         correctionPerSec = tmp1;
641         initialDelay = ((48000 * 24) + rate - 1) / rate;
642
643         /*
644          *  Fill in the VariDecimate control block.
645          */
646         spin_lock_irqsave(&chip->reg_lock, flags);
647         snd_cs46xx_poke(chip, BA1_CSRC,
648                 ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
649         snd_cs46xx_poke(chip, BA1_CCI, coeffIncr);
650         snd_cs46xx_poke(chip, BA1_CD,
651                 (((BA1_VARIDEC_BUF_1 + (initialDelay << 2)) << 16) & 0xFFFF0000) | 0x80);
652         snd_cs46xx_poke(chip, BA1_CPI, phiIncr);
653         spin_unlock_irqrestore(&chip->reg_lock, flags);
654
655         /*
656          *  Figure out the frame group length for the write back task.  Basically,
657          *  this is just the factors of 24000 (2^6*3*5^3) that are not present in
658          *  the output sample rate.
659          */
660         frameGroupLength = 1;
661         for (cnt = 2; cnt <= 64; cnt *= 2) {
662                 if (((rate / cnt) * cnt) != rate)
663                         frameGroupLength *= 2;
664         }
665         if (((rate / 3) * 3) != rate) {
666                 frameGroupLength *= 3;
667         }
668         for (cnt = 5; cnt <= 125; cnt *= 5) {
669                 if (((rate / cnt) * cnt) != rate) 
670                         frameGroupLength *= 5;
671         }
672
673         /*
674          * Fill in the WriteBack control block.
675          */
676         spin_lock_irqsave(&chip->reg_lock, flags);
677         snd_cs46xx_poke(chip, BA1_CFG1, frameGroupLength);
678         snd_cs46xx_poke(chip, BA1_CFG2, (0x00800000 | frameGroupLength));
679         snd_cs46xx_poke(chip, BA1_CCST, 0x0000FFFF);
680         snd_cs46xx_poke(chip, BA1_CSPB, ((65536 * rate) / 24000));
681         snd_cs46xx_poke(chip, (BA1_CSPB + 4), 0x0000FFFF);
682         spin_unlock_irqrestore(&chip->reg_lock, flags);
683 }
684
685 /*
686  *  PCM part
687  */
688
689 static void snd_cs46xx_pb_trans_copy(struct snd_pcm_substream *substream,
690                                      struct snd_pcm_indirect *rec, size_t bytes)
691 {
692         struct snd_pcm_runtime *runtime = substream->runtime;
693         struct snd_cs46xx_pcm * cpcm = runtime->private_data;
694         memcpy(cpcm->hw_buf.area + rec->hw_data, runtime->dma_area + rec->sw_data, bytes);
695 }
696
697 static int snd_cs46xx_playback_transfer(struct snd_pcm_substream *substream)
698 {
699         struct snd_pcm_runtime *runtime = substream->runtime;
700         struct snd_cs46xx_pcm * cpcm = runtime->private_data;
701         snd_pcm_indirect_playback_transfer(substream, &cpcm->pcm_rec, snd_cs46xx_pb_trans_copy);
702         return 0;
703 }
704
705 static void snd_cs46xx_cp_trans_copy(struct snd_pcm_substream *substream,
706                                      struct snd_pcm_indirect *rec, size_t bytes)
707 {
708         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
709         struct snd_pcm_runtime *runtime = substream->runtime;
710         memcpy(runtime->dma_area + rec->sw_data,
711                chip->capt.hw_buf.area + rec->hw_data, bytes);
712 }
713
714 static int snd_cs46xx_capture_transfer(struct snd_pcm_substream *substream)
715 {
716         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
717         snd_pcm_indirect_capture_transfer(substream, &chip->capt.pcm_rec, snd_cs46xx_cp_trans_copy);
718         return 0;
719 }
720
721 static snd_pcm_uframes_t snd_cs46xx_playback_direct_pointer(struct snd_pcm_substream *substream)
722 {
723         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
724         size_t ptr;
725         struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
726         snd_assert (cpcm->pcm_channel,return -ENXIO);
727
728 #ifdef CONFIG_SND_CS46XX_NEW_DSP
729         ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
730 #else
731         ptr = snd_cs46xx_peek(chip, BA1_PBA);
732 #endif
733         ptr -= cpcm->hw_buf.addr;
734         return ptr >> cpcm->shift;
735 }
736
737 static snd_pcm_uframes_t snd_cs46xx_playback_indirect_pointer(struct snd_pcm_substream *substream)
738 {
739         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
740         size_t ptr;
741         struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
742
743 #ifdef CONFIG_SND_CS46XX_NEW_DSP
744         snd_assert (cpcm->pcm_channel,return -ENXIO);
745         ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
746 #else
747         ptr = snd_cs46xx_peek(chip, BA1_PBA);
748 #endif
749         ptr -= cpcm->hw_buf.addr;
750         return snd_pcm_indirect_playback_pointer(substream, &cpcm->pcm_rec, ptr);
751 }
752
753 static snd_pcm_uframes_t snd_cs46xx_capture_direct_pointer(struct snd_pcm_substream *substream)
754 {
755         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
756         size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
757         return ptr >> chip->capt.shift;
758 }
759
760 static snd_pcm_uframes_t snd_cs46xx_capture_indirect_pointer(struct snd_pcm_substream *substream)
761 {
762         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
763         size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
764         return snd_pcm_indirect_capture_pointer(substream, &chip->capt.pcm_rec, ptr);
765 }
766
767 static int snd_cs46xx_playback_trigger(struct snd_pcm_substream *substream,
768                                        int cmd)
769 {
770         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
771         /*struct snd_pcm_runtime *runtime = substream->runtime;*/
772         int result = 0;
773
774 #ifdef CONFIG_SND_CS46XX_NEW_DSP
775         struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
776         if (! cpcm->pcm_channel) {
777                 return -ENXIO;
778         }
779 #endif
780         switch (cmd) {
781         case SNDRV_PCM_TRIGGER_START:
782         case SNDRV_PCM_TRIGGER_RESUME:
783 #ifdef CONFIG_SND_CS46XX_NEW_DSP
784                 /* magic value to unmute PCM stream  playback volume */
785                 snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 
786                                        SCBVolumeCtrl) << 2, 0x80008000);
787
788                 if (cpcm->pcm_channel->unlinked)
789                         cs46xx_dsp_pcm_link(chip,cpcm->pcm_channel);
790
791                 if (substream->runtime->periods != CS46XX_FRAGS)
792                         snd_cs46xx_playback_transfer(substream);
793 #else
794                 spin_lock(&chip->reg_lock);
795                 if (substream->runtime->periods != CS46XX_FRAGS)
796                         snd_cs46xx_playback_transfer(substream);
797                 { unsigned int tmp;
798                 tmp = snd_cs46xx_peek(chip, BA1_PCTL);
799                 tmp &= 0x0000ffff;
800                 snd_cs46xx_poke(chip, BA1_PCTL, chip->play_ctl | tmp);
801                 }
802                 spin_unlock(&chip->reg_lock);
803 #endif
804                 break;
805         case SNDRV_PCM_TRIGGER_STOP:
806         case SNDRV_PCM_TRIGGER_SUSPEND:
807 #ifdef CONFIG_SND_CS46XX_NEW_DSP
808                 /* magic mute channel */
809                 snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 
810                                        SCBVolumeCtrl) << 2, 0xffffffff);
811
812                 if (!cpcm->pcm_channel->unlinked)
813                         cs46xx_dsp_pcm_unlink(chip,cpcm->pcm_channel);
814 #else
815                 spin_lock(&chip->reg_lock);
816                 { unsigned int tmp;
817                 tmp = snd_cs46xx_peek(chip, BA1_PCTL);
818                 tmp &= 0x0000ffff;
819                 snd_cs46xx_poke(chip, BA1_PCTL, tmp);
820                 }
821                 spin_unlock(&chip->reg_lock);
822 #endif
823                 break;
824         default:
825                 result = -EINVAL;
826                 break;
827         }
828
829         return result;
830 }
831
832 static int snd_cs46xx_capture_trigger(struct snd_pcm_substream *substream,
833                                       int cmd)
834 {
835         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
836         unsigned int tmp;
837         int result = 0;
838
839         spin_lock(&chip->reg_lock);
840         switch (cmd) {
841         case SNDRV_PCM_TRIGGER_START:
842         case SNDRV_PCM_TRIGGER_RESUME:
843                 tmp = snd_cs46xx_peek(chip, BA1_CCTL);
844                 tmp &= 0xffff0000;
845                 snd_cs46xx_poke(chip, BA1_CCTL, chip->capt.ctl | tmp);
846                 break;
847         case SNDRV_PCM_TRIGGER_STOP:
848         case SNDRV_PCM_TRIGGER_SUSPEND:
849                 tmp = snd_cs46xx_peek(chip, BA1_CCTL);
850                 tmp &= 0xffff0000;
851                 snd_cs46xx_poke(chip, BA1_CCTL, tmp);
852                 break;
853         default:
854                 result = -EINVAL;
855                 break;
856         }
857         spin_unlock(&chip->reg_lock);
858
859         return result;
860 }
861
862 #ifdef CONFIG_SND_CS46XX_NEW_DSP
863 static int _cs46xx_adjust_sample_rate (struct snd_cs46xx *chip, struct snd_cs46xx_pcm *cpcm,
864                                        int sample_rate) 
865 {
866
867         /* If PCMReaderSCB and SrcTaskSCB not created yet ... */
868         if ( cpcm->pcm_channel == NULL) {
869                 cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate, 
870                                                                    cpcm, cpcm->hw_buf.addr,cpcm->pcm_channel_id);
871                 if (cpcm->pcm_channel == NULL) {
872                         snd_printk(KERN_ERR "cs46xx: failed to create virtual PCM channel\n");
873                         return -ENOMEM;
874                 }
875                 cpcm->pcm_channel->sample_rate = sample_rate;
876         } else
877         /* if sample rate is changed */
878         if ((int)cpcm->pcm_channel->sample_rate != sample_rate) {
879                 int unlinked = cpcm->pcm_channel->unlinked;
880                 cs46xx_dsp_destroy_pcm_channel (chip,cpcm->pcm_channel);
881
882                 if ( (cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate, cpcm, 
883                                                                          cpcm->hw_buf.addr,
884                                                                          cpcm->pcm_channel_id)) == NULL) {
885                         snd_printk(KERN_ERR "cs46xx: failed to re-create virtual PCM channel\n");
886                         return -ENOMEM;
887                 }
888
889                 if (!unlinked) cs46xx_dsp_pcm_link (chip,cpcm->pcm_channel);
890                 cpcm->pcm_channel->sample_rate = sample_rate;
891         }
892
893         return 0;
894 }
895 #endif
896
897
898 static int snd_cs46xx_playback_hw_params(struct snd_pcm_substream *substream,
899                                          struct snd_pcm_hw_params *hw_params)
900 {
901         struct snd_pcm_runtime *runtime = substream->runtime;
902         struct snd_cs46xx_pcm *cpcm;
903         int err;
904 #ifdef CONFIG_SND_CS46XX_NEW_DSP
905         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
906         int sample_rate = params_rate(hw_params);
907         int period_size = params_period_bytes(hw_params);
908 #endif
909         cpcm = runtime->private_data;
910
911 #ifdef CONFIG_SND_CS46XX_NEW_DSP
912         snd_assert (sample_rate != 0, return -ENXIO);
913
914         mutex_lock(&chip->spos_mutex);
915
916         if (_cs46xx_adjust_sample_rate (chip,cpcm,sample_rate)) {
917                 mutex_unlock(&chip->spos_mutex);
918                 return -ENXIO;
919         }
920
921         snd_assert (cpcm->pcm_channel != NULL);
922         if (!cpcm->pcm_channel) {
923                 mutex_unlock(&chip->spos_mutex);
924                 return -ENXIO;
925         }
926
927
928         if (cs46xx_dsp_pcm_channel_set_period (chip,cpcm->pcm_channel,period_size)) {
929                  mutex_unlock(&chip->spos_mutex);
930                  return -EINVAL;
931          }
932
933         snd_printdd ("period_size (%d), periods (%d) buffer_size(%d)\n",
934                      period_size, params_periods(hw_params),
935                      params_buffer_bytes(hw_params));
936 #endif
937
938         if (params_periods(hw_params) == CS46XX_FRAGS) {
939                 if (runtime->dma_area != cpcm->hw_buf.area)
940                         snd_pcm_lib_free_pages(substream);
941                 runtime->dma_area = cpcm->hw_buf.area;
942                 runtime->dma_addr = cpcm->hw_buf.addr;
943                 runtime->dma_bytes = cpcm->hw_buf.bytes;
944
945
946 #ifdef CONFIG_SND_CS46XX_NEW_DSP
947                 if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
948                         substream->ops = &snd_cs46xx_playback_ops;
949                 } else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
950                         substream->ops = &snd_cs46xx_playback_rear_ops;
951                 } else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
952                         substream->ops = &snd_cs46xx_playback_clfe_ops;
953                 } else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
954                         substream->ops = &snd_cs46xx_playback_iec958_ops;
955                 } else {
956                         snd_assert(0);
957                 }
958 #else
959                 substream->ops = &snd_cs46xx_playback_ops;
960 #endif
961
962         } else {
963                 if (runtime->dma_area == cpcm->hw_buf.area) {
964                         runtime->dma_area = NULL;
965                         runtime->dma_addr = 0;
966                         runtime->dma_bytes = 0;
967                 }
968                 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) {
969 #ifdef CONFIG_SND_CS46XX_NEW_DSP
970                         mutex_unlock(&chip->spos_mutex);
971 #endif
972                         return err;
973                 }
974
975 #ifdef CONFIG_SND_CS46XX_NEW_DSP
976                 if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
977                         substream->ops = &snd_cs46xx_playback_indirect_ops;
978                 } else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
979                         substream->ops = &snd_cs46xx_playback_indirect_rear_ops;
980                 } else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
981                         substream->ops = &snd_cs46xx_playback_indirect_clfe_ops;
982                 } else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
983                         substream->ops = &snd_cs46xx_playback_indirect_iec958_ops;
984                 } else {
985                         snd_assert(0);
986                 }
987 #else
988                 substream->ops = &snd_cs46xx_playback_indirect_ops;
989 #endif
990
991         }
992
993 #ifdef CONFIG_SND_CS46XX_NEW_DSP
994         mutex_unlock(&chip->spos_mutex);
995 #endif
996
997         return 0;
998 }
999
1000 static int snd_cs46xx_playback_hw_free(struct snd_pcm_substream *substream)
1001 {
1002         /*struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);*/
1003         struct snd_pcm_runtime *runtime = substream->runtime;
1004         struct snd_cs46xx_pcm *cpcm;
1005
1006         cpcm = runtime->private_data;
1007
1008         /* if play_back open fails, then this function
1009            is called and cpcm can actually be NULL here */
1010         if (!cpcm) return -ENXIO;
1011
1012         if (runtime->dma_area != cpcm->hw_buf.area)
1013                 snd_pcm_lib_free_pages(substream);
1014     
1015         runtime->dma_area = NULL;
1016         runtime->dma_addr = 0;
1017         runtime->dma_bytes = 0;
1018
1019         return 0;
1020 }
1021
1022 static int snd_cs46xx_playback_prepare(struct snd_pcm_substream *substream)
1023 {
1024         unsigned int tmp;
1025         unsigned int pfie;
1026         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1027         struct snd_pcm_runtime *runtime = substream->runtime;
1028         struct snd_cs46xx_pcm *cpcm;
1029
1030         cpcm = runtime->private_data;
1031
1032 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1033     snd_assert (cpcm->pcm_channel != NULL, return -ENXIO);
1034
1035         pfie = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2 );
1036         pfie &= ~0x0000f03f;
1037 #else
1038         /* old dsp */
1039         pfie = snd_cs46xx_peek(chip, BA1_PFIE);
1040         pfie &= ~0x0000f03f;
1041 #endif
1042
1043         cpcm->shift = 2;
1044         /* if to convert from stereo to mono */
1045         if (runtime->channels == 1) {
1046                 cpcm->shift--;
1047                 pfie |= 0x00002000;
1048         }
1049         /* if to convert from 8 bit to 16 bit */
1050         if (snd_pcm_format_width(runtime->format) == 8) {
1051                 cpcm->shift--;
1052                 pfie |= 0x00001000;
1053         }
1054         /* if to convert to unsigned */
1055         if (snd_pcm_format_unsigned(runtime->format))
1056                 pfie |= 0x00008000;
1057
1058         /* Never convert byte order when sample stream is 8 bit */
1059         if (snd_pcm_format_width(runtime->format) != 8) {
1060                 /* convert from big endian to little endian */
1061                 if (snd_pcm_format_big_endian(runtime->format))
1062                         pfie |= 0x00004000;
1063         }
1064         
1065         memset(&cpcm->pcm_rec, 0, sizeof(cpcm->pcm_rec));
1066         cpcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1067         cpcm->pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << cpcm->shift;
1068
1069 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1070
1071         tmp = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2);
1072         tmp &= ~0x000003ff;
1073         tmp |= (4 << cpcm->shift) - 1;
1074         /* playback transaction count register */
1075         snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2, tmp);
1076
1077         /* playback format && interrupt enable */
1078         snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2, pfie | cpcm->pcm_channel->pcm_slot);
1079 #else
1080         snd_cs46xx_poke(chip, BA1_PBA, cpcm->hw_buf.addr);
1081         tmp = snd_cs46xx_peek(chip, BA1_PDTC);
1082         tmp &= ~0x000003ff;
1083         tmp |= (4 << cpcm->shift) - 1;
1084         snd_cs46xx_poke(chip, BA1_PDTC, tmp);
1085         snd_cs46xx_poke(chip, BA1_PFIE, pfie);
1086         snd_cs46xx_set_play_sample_rate(chip, runtime->rate);
1087 #endif
1088
1089         return 0;
1090 }
1091
1092 static int snd_cs46xx_capture_hw_params(struct snd_pcm_substream *substream,
1093                                         struct snd_pcm_hw_params *hw_params)
1094 {
1095         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1096         struct snd_pcm_runtime *runtime = substream->runtime;
1097         int err;
1098
1099 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1100         cs46xx_dsp_pcm_ostream_set_period (chip, params_period_bytes(hw_params));
1101 #endif
1102         if (runtime->periods == CS46XX_FRAGS) {
1103                 if (runtime->dma_area != chip->capt.hw_buf.area)
1104                         snd_pcm_lib_free_pages(substream);
1105                 runtime->dma_area = chip->capt.hw_buf.area;
1106                 runtime->dma_addr = chip->capt.hw_buf.addr;
1107                 runtime->dma_bytes = chip->capt.hw_buf.bytes;
1108                 substream->ops = &snd_cs46xx_capture_ops;
1109         } else {
1110                 if (runtime->dma_area == chip->capt.hw_buf.area) {
1111                         runtime->dma_area = NULL;
1112                         runtime->dma_addr = 0;
1113                         runtime->dma_bytes = 0;
1114                 }
1115                 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1116                         return err;
1117                 substream->ops = &snd_cs46xx_capture_indirect_ops;
1118         }
1119
1120         return 0;
1121 }
1122
1123 static int snd_cs46xx_capture_hw_free(struct snd_pcm_substream *substream)
1124 {
1125         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1126         struct snd_pcm_runtime *runtime = substream->runtime;
1127
1128         if (runtime->dma_area != chip->capt.hw_buf.area)
1129                 snd_pcm_lib_free_pages(substream);
1130         runtime->dma_area = NULL;
1131         runtime->dma_addr = 0;
1132         runtime->dma_bytes = 0;
1133
1134         return 0;
1135 }
1136
1137 static int snd_cs46xx_capture_prepare(struct snd_pcm_substream *substream)
1138 {
1139         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1140         struct snd_pcm_runtime *runtime = substream->runtime;
1141
1142         snd_cs46xx_poke(chip, BA1_CBA, chip->capt.hw_buf.addr);
1143         chip->capt.shift = 2;
1144         memset(&chip->capt.pcm_rec, 0, sizeof(chip->capt.pcm_rec));
1145         chip->capt.pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1146         chip->capt.pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << 2;
1147         snd_cs46xx_set_capture_sample_rate(chip, runtime->rate);
1148
1149         return 0;
1150 }
1151
1152 static irqreturn_t snd_cs46xx_interrupt(int irq, void *dev_id)
1153 {
1154         struct snd_cs46xx *chip = dev_id;
1155         u32 status1;
1156 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1157         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1158         u32 status2;
1159         int i;
1160         struct snd_cs46xx_pcm *cpcm = NULL;
1161 #endif
1162
1163         /*
1164          *  Read the Interrupt Status Register to clear the interrupt
1165          */
1166         status1 = snd_cs46xx_peekBA0(chip, BA0_HISR);
1167         if ((status1 & 0x7fffffff) == 0) {
1168                 snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1169                 return IRQ_NONE;
1170         }
1171
1172 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1173         status2 = snd_cs46xx_peekBA0(chip, BA0_HSR0);
1174
1175         for (i = 0; i < DSP_MAX_PCM_CHANNELS; ++i) {
1176                 if (i <= 15) {
1177                         if ( status1 & (1 << i) ) {
1178                                 if (i == CS46XX_DSP_CAPTURE_CHANNEL) {
1179                                         if (chip->capt.substream)
1180                                                 snd_pcm_period_elapsed(chip->capt.substream);
1181                                 } else {
1182                                         if (ins->pcm_channels[i].active &&
1183                                             ins->pcm_channels[i].private_data &&
1184                                             !ins->pcm_channels[i].unlinked) {
1185                                                 cpcm = ins->pcm_channels[i].private_data;
1186                                                 snd_pcm_period_elapsed(cpcm->substream);
1187                                         }
1188                                 }
1189                         }
1190                 } else {
1191                         if ( status2 & (1 << (i - 16))) {
1192                                 if (ins->pcm_channels[i].active && 
1193                                     ins->pcm_channels[i].private_data &&
1194                                     !ins->pcm_channels[i].unlinked) {
1195                                         cpcm = ins->pcm_channels[i].private_data;
1196                                         snd_pcm_period_elapsed(cpcm->substream);
1197                                 }
1198                         }
1199                 }
1200         }
1201
1202 #else
1203         /* old dsp */
1204         if ((status1 & HISR_VC0) && chip->playback_pcm) {
1205                 if (chip->playback_pcm->substream)
1206                         snd_pcm_period_elapsed(chip->playback_pcm->substream);
1207         }
1208         if ((status1 & HISR_VC1) && chip->pcm) {
1209                 if (chip->capt.substream)
1210                         snd_pcm_period_elapsed(chip->capt.substream);
1211         }
1212 #endif
1213
1214         if ((status1 & HISR_MIDI) && chip->rmidi) {
1215                 unsigned char c;
1216                 
1217                 spin_lock(&chip->reg_lock);
1218                 while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_RBE) == 0) {
1219                         c = snd_cs46xx_peekBA0(chip, BA0_MIDRP);
1220                         if ((chip->midcr & MIDCR_RIE) == 0)
1221                                 continue;
1222                         snd_rawmidi_receive(chip->midi_input, &c, 1);
1223                 }
1224                 while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
1225                         if ((chip->midcr & MIDCR_TIE) == 0)
1226                                 break;
1227                         if (snd_rawmidi_transmit(chip->midi_output, &c, 1) != 1) {
1228                                 chip->midcr &= ~MIDCR_TIE;
1229                                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
1230                                 break;
1231                         }
1232                         snd_cs46xx_pokeBA0(chip, BA0_MIDWP, c);
1233                 }
1234                 spin_unlock(&chip->reg_lock);
1235         }
1236         /*
1237          *  EOI to the PCI part....reenables interrupts
1238          */
1239         snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1240
1241         return IRQ_HANDLED;
1242 }
1243
1244 static struct snd_pcm_hardware snd_cs46xx_playback =
1245 {
1246         .info =                 (SNDRV_PCM_INFO_MMAP |
1247                                  SNDRV_PCM_INFO_INTERLEAVED | 
1248                                  SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1249                                  /*SNDRV_PCM_INFO_RESUME*/),
1250         .formats =              (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
1251                                  SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
1252                                  SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE),
1253         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1254         .rate_min =             5500,
1255         .rate_max =             48000,
1256         .channels_min =         1,
1257         .channels_max =         2,
1258         .buffer_bytes_max =     (256 * 1024),
1259         .period_bytes_min =     CS46XX_MIN_PERIOD_SIZE,
1260         .period_bytes_max =     CS46XX_MAX_PERIOD_SIZE,
1261         .periods_min =          CS46XX_FRAGS,
1262         .periods_max =          1024,
1263         .fifo_size =            0,
1264 };
1265
1266 static struct snd_pcm_hardware snd_cs46xx_capture =
1267 {
1268         .info =                 (SNDRV_PCM_INFO_MMAP |
1269                                  SNDRV_PCM_INFO_INTERLEAVED |
1270                                  SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1271                                  /*SNDRV_PCM_INFO_RESUME*/),
1272         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1273         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1274         .rate_min =             5500,
1275         .rate_max =             48000,
1276         .channels_min =         2,
1277         .channels_max =         2,
1278         .buffer_bytes_max =     (256 * 1024),
1279         .period_bytes_min =     CS46XX_MIN_PERIOD_SIZE,
1280         .period_bytes_max =     CS46XX_MAX_PERIOD_SIZE,
1281         .periods_min =          CS46XX_FRAGS,
1282         .periods_max =          1024,
1283         .fifo_size =            0,
1284 };
1285
1286 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1287
1288 static unsigned int period_sizes[] = { 32, 64, 128, 256, 512, 1024, 2048 };
1289
1290 static struct snd_pcm_hw_constraint_list hw_constraints_period_sizes = {
1291         .count = ARRAY_SIZE(period_sizes),
1292         .list = period_sizes,
1293         .mask = 0
1294 };
1295
1296 #endif
1297
1298 static void snd_cs46xx_pcm_free_substream(struct snd_pcm_runtime *runtime)
1299 {
1300         kfree(runtime->private_data);
1301 }
1302
1303 static int _cs46xx_playback_open_channel (struct snd_pcm_substream *substream,int pcm_channel_id)
1304 {
1305         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1306         struct snd_cs46xx_pcm * cpcm;
1307         struct snd_pcm_runtime *runtime = substream->runtime;
1308
1309         cpcm = kzalloc(sizeof(*cpcm), GFP_KERNEL);
1310         if (cpcm == NULL)
1311                 return -ENOMEM;
1312         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1313                                 PAGE_SIZE, &cpcm->hw_buf) < 0) {
1314                 kfree(cpcm);
1315                 return -ENOMEM;
1316         }
1317
1318         runtime->hw = snd_cs46xx_playback;
1319         runtime->private_data = cpcm;
1320         runtime->private_free = snd_cs46xx_pcm_free_substream;
1321
1322         cpcm->substream = substream;
1323 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1324         mutex_lock(&chip->spos_mutex);
1325         cpcm->pcm_channel = NULL; 
1326         cpcm->pcm_channel_id = pcm_channel_id;
1327
1328
1329         snd_pcm_hw_constraint_list(runtime, 0,
1330                                    SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 
1331                                    &hw_constraints_period_sizes);
1332
1333         mutex_unlock(&chip->spos_mutex);
1334 #else
1335         chip->playback_pcm = cpcm; /* HACK */
1336 #endif
1337
1338         if (chip->accept_valid)
1339                 substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1340         chip->active_ctrl(chip, 1);
1341
1342         return 0;
1343 }
1344
1345 static int snd_cs46xx_playback_open(struct snd_pcm_substream *substream)
1346 {
1347         snd_printdd("open front channel\n");
1348         return _cs46xx_playback_open_channel(substream,DSP_PCM_MAIN_CHANNEL);
1349 }
1350
1351 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1352 static int snd_cs46xx_playback_open_rear(struct snd_pcm_substream *substream)
1353 {
1354         snd_printdd("open rear channel\n");
1355
1356         return _cs46xx_playback_open_channel(substream,DSP_PCM_REAR_CHANNEL);
1357 }
1358
1359 static int snd_cs46xx_playback_open_clfe(struct snd_pcm_substream *substream)
1360 {
1361         snd_printdd("open center - LFE channel\n");
1362
1363         return _cs46xx_playback_open_channel(substream,DSP_PCM_CENTER_LFE_CHANNEL);
1364 }
1365
1366 static int snd_cs46xx_playback_open_iec958(struct snd_pcm_substream *substream)
1367 {
1368         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1369
1370         snd_printdd("open raw iec958 channel\n");
1371
1372         mutex_lock(&chip->spos_mutex);
1373         cs46xx_iec958_pre_open (chip);
1374         mutex_unlock(&chip->spos_mutex);
1375
1376         return _cs46xx_playback_open_channel(substream,DSP_IEC958_CHANNEL);
1377 }
1378
1379 static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream);
1380
1381 static int snd_cs46xx_playback_close_iec958(struct snd_pcm_substream *substream)
1382 {
1383         int err;
1384         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1385   
1386         snd_printdd("close raw iec958 channel\n");
1387
1388         err = snd_cs46xx_playback_close(substream);
1389
1390         mutex_lock(&chip->spos_mutex);
1391         cs46xx_iec958_post_close (chip);
1392         mutex_unlock(&chip->spos_mutex);
1393
1394         return err;
1395 }
1396 #endif
1397
1398 static int snd_cs46xx_capture_open(struct snd_pcm_substream *substream)
1399 {
1400         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1401
1402         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1403                                 PAGE_SIZE, &chip->capt.hw_buf) < 0)
1404                 return -ENOMEM;
1405         chip->capt.substream = substream;
1406         substream->runtime->hw = snd_cs46xx_capture;
1407
1408         if (chip->accept_valid)
1409                 substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1410
1411         chip->active_ctrl(chip, 1);
1412
1413 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1414         snd_pcm_hw_constraint_list(substream->runtime, 0,
1415                                    SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 
1416                                    &hw_constraints_period_sizes);
1417 #endif
1418         return 0;
1419 }
1420
1421 static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream)
1422 {
1423         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1424         struct snd_pcm_runtime *runtime = substream->runtime;
1425         struct snd_cs46xx_pcm * cpcm;
1426
1427         cpcm = runtime->private_data;
1428
1429         /* when playback_open fails, then cpcm can be NULL */
1430         if (!cpcm) return -ENXIO;
1431
1432 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1433         mutex_lock(&chip->spos_mutex);
1434         if (cpcm->pcm_channel) {
1435                 cs46xx_dsp_destroy_pcm_channel(chip,cpcm->pcm_channel);
1436                 cpcm->pcm_channel = NULL;
1437         }
1438         mutex_unlock(&chip->spos_mutex);
1439 #else
1440         chip->playback_pcm = NULL;
1441 #endif
1442
1443         cpcm->substream = NULL;
1444         snd_dma_free_pages(&cpcm->hw_buf);
1445         chip->active_ctrl(chip, -1);
1446
1447         return 0;
1448 }
1449
1450 static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
1451 {
1452         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1453
1454         chip->capt.substream = NULL;
1455         snd_dma_free_pages(&chip->capt.hw_buf);
1456         chip->active_ctrl(chip, -1);
1457
1458         return 0;
1459 }
1460
1461 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1462 static struct snd_pcm_ops snd_cs46xx_playback_rear_ops = {
1463         .open =                 snd_cs46xx_playback_open_rear,
1464         .close =                snd_cs46xx_playback_close,
1465         .ioctl =                snd_pcm_lib_ioctl,
1466         .hw_params =            snd_cs46xx_playback_hw_params,
1467         .hw_free =              snd_cs46xx_playback_hw_free,
1468         .prepare =              snd_cs46xx_playback_prepare,
1469         .trigger =              snd_cs46xx_playback_trigger,
1470         .pointer =              snd_cs46xx_playback_direct_pointer,
1471 };
1472
1473 static struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops = {
1474         .open =                 snd_cs46xx_playback_open_rear,
1475         .close =                snd_cs46xx_playback_close,
1476         .ioctl =                snd_pcm_lib_ioctl,
1477         .hw_params =            snd_cs46xx_playback_hw_params,
1478         .hw_free =              snd_cs46xx_playback_hw_free,
1479         .prepare =              snd_cs46xx_playback_prepare,
1480         .trigger =              snd_cs46xx_playback_trigger,
1481         .pointer =              snd_cs46xx_playback_indirect_pointer,
1482         .ack =                  snd_cs46xx_playback_transfer,
1483 };
1484
1485 static struct snd_pcm_ops snd_cs46xx_playback_clfe_ops = {
1486         .open =                 snd_cs46xx_playback_open_clfe,
1487         .close =                snd_cs46xx_playback_close,
1488         .ioctl =                snd_pcm_lib_ioctl,
1489         .hw_params =            snd_cs46xx_playback_hw_params,
1490         .hw_free =              snd_cs46xx_playback_hw_free,
1491         .prepare =              snd_cs46xx_playback_prepare,
1492         .trigger =              snd_cs46xx_playback_trigger,
1493         .pointer =              snd_cs46xx_playback_direct_pointer,
1494 };
1495
1496 static struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops = {
1497         .open =                 snd_cs46xx_playback_open_clfe,
1498         .close =                snd_cs46xx_playback_close,
1499         .ioctl =                snd_pcm_lib_ioctl,
1500         .hw_params =            snd_cs46xx_playback_hw_params,
1501         .hw_free =              snd_cs46xx_playback_hw_free,
1502         .prepare =              snd_cs46xx_playback_prepare,
1503         .trigger =              snd_cs46xx_playback_trigger,
1504         .pointer =              snd_cs46xx_playback_indirect_pointer,
1505         .ack =                  snd_cs46xx_playback_transfer,
1506 };
1507
1508 static struct snd_pcm_ops snd_cs46xx_playback_iec958_ops = {
1509         .open =                 snd_cs46xx_playback_open_iec958,
1510         .close =                snd_cs46xx_playback_close_iec958,
1511         .ioctl =                snd_pcm_lib_ioctl,
1512         .hw_params =            snd_cs46xx_playback_hw_params,
1513         .hw_free =              snd_cs46xx_playback_hw_free,
1514         .prepare =              snd_cs46xx_playback_prepare,
1515         .trigger =              snd_cs46xx_playback_trigger,
1516         .pointer =              snd_cs46xx_playback_direct_pointer,
1517 };
1518
1519 static struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops = {
1520         .open =                 snd_cs46xx_playback_open_iec958,
1521         .close =                snd_cs46xx_playback_close_iec958,
1522         .ioctl =                snd_pcm_lib_ioctl,
1523         .hw_params =            snd_cs46xx_playback_hw_params,
1524         .hw_free =              snd_cs46xx_playback_hw_free,
1525         .prepare =              snd_cs46xx_playback_prepare,
1526         .trigger =              snd_cs46xx_playback_trigger,
1527         .pointer =              snd_cs46xx_playback_indirect_pointer,
1528         .ack =                  snd_cs46xx_playback_transfer,
1529 };
1530
1531 #endif
1532
1533 static struct snd_pcm_ops snd_cs46xx_playback_ops = {
1534         .open =                 snd_cs46xx_playback_open,
1535         .close =                snd_cs46xx_playback_close,
1536         .ioctl =                snd_pcm_lib_ioctl,
1537         .hw_params =            snd_cs46xx_playback_hw_params,
1538         .hw_free =              snd_cs46xx_playback_hw_free,
1539         .prepare =              snd_cs46xx_playback_prepare,
1540         .trigger =              snd_cs46xx_playback_trigger,
1541         .pointer =              snd_cs46xx_playback_direct_pointer,
1542 };
1543
1544 static struct snd_pcm_ops snd_cs46xx_playback_indirect_ops = {
1545         .open =                 snd_cs46xx_playback_open,
1546         .close =                snd_cs46xx_playback_close,
1547         .ioctl =                snd_pcm_lib_ioctl,
1548         .hw_params =            snd_cs46xx_playback_hw_params,
1549         .hw_free =              snd_cs46xx_playback_hw_free,
1550         .prepare =              snd_cs46xx_playback_prepare,
1551         .trigger =              snd_cs46xx_playback_trigger,
1552         .pointer =              snd_cs46xx_playback_indirect_pointer,
1553         .ack =                  snd_cs46xx_playback_transfer,
1554 };
1555
1556 static struct snd_pcm_ops snd_cs46xx_capture_ops = {
1557         .open =                 snd_cs46xx_capture_open,
1558         .close =                snd_cs46xx_capture_close,
1559         .ioctl =                snd_pcm_lib_ioctl,
1560         .hw_params =            snd_cs46xx_capture_hw_params,
1561         .hw_free =              snd_cs46xx_capture_hw_free,
1562         .prepare =              snd_cs46xx_capture_prepare,
1563         .trigger =              snd_cs46xx_capture_trigger,
1564         .pointer =              snd_cs46xx_capture_direct_pointer,
1565 };
1566
1567 static struct snd_pcm_ops snd_cs46xx_capture_indirect_ops = {
1568         .open =                 snd_cs46xx_capture_open,
1569         .close =                snd_cs46xx_capture_close,
1570         .ioctl =                snd_pcm_lib_ioctl,
1571         .hw_params =            snd_cs46xx_capture_hw_params,
1572         .hw_free =              snd_cs46xx_capture_hw_free,
1573         .prepare =              snd_cs46xx_capture_prepare,
1574         .trigger =              snd_cs46xx_capture_trigger,
1575         .pointer =              snd_cs46xx_capture_indirect_pointer,
1576         .ack =                  snd_cs46xx_capture_transfer,
1577 };
1578
1579 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1580 #define MAX_PLAYBACK_CHANNELS   (DSP_MAX_PCM_CHANNELS - 1)
1581 #else
1582 #define MAX_PLAYBACK_CHANNELS   1
1583 #endif
1584
1585 int __devinit snd_cs46xx_pcm(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
1586 {
1587         struct snd_pcm *pcm;
1588         int err;
1589
1590         if (rpcm)
1591                 *rpcm = NULL;
1592         if ((err = snd_pcm_new(chip->card, "CS46xx", device, MAX_PLAYBACK_CHANNELS, 1, &pcm)) < 0)
1593                 return err;
1594
1595         pcm->private_data = chip;
1596
1597         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_ops);
1598         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs46xx_capture_ops);
1599
1600         /* global setup */
1601         pcm->info_flags = 0;
1602         strcpy(pcm->name, "CS46xx");
1603         chip->pcm = pcm;
1604
1605         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1606                                               snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1607
1608         if (rpcm)
1609                 *rpcm = pcm;
1610
1611         return 0;
1612 }
1613
1614
1615 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1616 int __devinit snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
1617 {
1618         struct snd_pcm *pcm;
1619         int err;
1620
1621         if (rpcm)
1622                 *rpcm = NULL;
1623
1624         if ((err = snd_pcm_new(chip->card, "CS46xx - Rear", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
1625                 return err;
1626
1627         pcm->private_data = chip;
1628
1629         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_rear_ops);
1630
1631         /* global setup */
1632         pcm->info_flags = 0;
1633         strcpy(pcm->name, "CS46xx - Rear");
1634         chip->pcm_rear = pcm;
1635
1636         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1637                                               snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1638
1639         if (rpcm)
1640                 *rpcm = pcm;
1641
1642         return 0;
1643 }
1644
1645 int __devinit snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
1646 {
1647         struct snd_pcm *pcm;
1648         int err;
1649
1650         if (rpcm)
1651                 *rpcm = NULL;
1652
1653         if ((err = snd_pcm_new(chip->card, "CS46xx - Center LFE", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
1654                 return err;
1655
1656         pcm->private_data = chip;
1657
1658         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_clfe_ops);
1659
1660         /* global setup */
1661         pcm->info_flags = 0;
1662         strcpy(pcm->name, "CS46xx - Center LFE");
1663         chip->pcm_center_lfe = pcm;
1664
1665         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1666                                               snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1667
1668         if (rpcm)
1669                 *rpcm = pcm;
1670
1671         return 0;
1672 }
1673
1674 int __devinit snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
1675 {
1676         struct snd_pcm *pcm;
1677         int err;
1678
1679         if (rpcm)
1680                 *rpcm = NULL;
1681
1682         if ((err = snd_pcm_new(chip->card, "CS46xx - IEC958", device, 1, 0, &pcm)) < 0)
1683                 return err;
1684
1685         pcm->private_data = chip;
1686
1687         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_iec958_ops);
1688
1689         /* global setup */
1690         pcm->info_flags = 0;
1691         strcpy(pcm->name, "CS46xx - IEC958");
1692         chip->pcm_rear = pcm;
1693
1694         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1695                                               snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1696
1697         if (rpcm)
1698                 *rpcm = pcm;
1699
1700         return 0;
1701 }
1702 #endif
1703
1704 /*
1705  *  Mixer routines
1706  */
1707 static void snd_cs46xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1708 {
1709         struct snd_cs46xx *chip = bus->private_data;
1710
1711         chip->ac97_bus = NULL;
1712 }
1713
1714 static void snd_cs46xx_mixer_free_ac97(struct snd_ac97 *ac97)
1715 {
1716         struct snd_cs46xx *chip = ac97->private_data;
1717
1718         snd_assert ((ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) ||
1719                     (ac97 == chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]),
1720                     return);
1721
1722         if (ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) {
1723                 chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] = NULL;
1724                 chip->eapd_switch = NULL;
1725         }
1726         else
1727                 chip->ac97[CS46XX_SECONDARY_CODEC_INDEX] = NULL;
1728 }
1729
1730 static int snd_cs46xx_vol_info(struct snd_kcontrol *kcontrol, 
1731                                struct snd_ctl_elem_info *uinfo)
1732 {
1733         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1734         uinfo->count = 2;
1735         uinfo->value.integer.min = 0;
1736         uinfo->value.integer.max = 0x7fff;
1737         return 0;
1738 }
1739
1740 static int snd_cs46xx_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1741 {
1742         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1743         int reg = kcontrol->private_value;
1744         unsigned int val = snd_cs46xx_peek(chip, reg);
1745         ucontrol->value.integer.value[0] = 0xffff - (val >> 16);
1746         ucontrol->value.integer.value[1] = 0xffff - (val & 0xffff);
1747         return 0;
1748 }
1749
1750 static int snd_cs46xx_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1751 {
1752         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1753         int reg = kcontrol->private_value;
1754         unsigned int val = ((0xffff - ucontrol->value.integer.value[0]) << 16 | 
1755                             (0xffff - ucontrol->value.integer.value[1]));
1756         unsigned int old = snd_cs46xx_peek(chip, reg);
1757         int change = (old != val);
1758
1759         if (change) {
1760                 snd_cs46xx_poke(chip, reg, val);
1761         }
1762
1763         return change;
1764 }
1765
1766 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1767
1768 static int snd_cs46xx_vol_dac_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1769 {
1770         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1771
1772         ucontrol->value.integer.value[0] = chip->dsp_spos_instance->dac_volume_left;
1773         ucontrol->value.integer.value[1] = chip->dsp_spos_instance->dac_volume_right;
1774
1775         return 0;
1776 }
1777
1778 static int snd_cs46xx_vol_dac_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1779 {
1780         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1781         int change = 0;
1782
1783         if (chip->dsp_spos_instance->dac_volume_right != ucontrol->value.integer.value[0] ||
1784             chip->dsp_spos_instance->dac_volume_left != ucontrol->value.integer.value[1]) {
1785                 cs46xx_dsp_set_dac_volume(chip,
1786                                           ucontrol->value.integer.value[0],
1787                                           ucontrol->value.integer.value[1]);
1788                 change = 1;
1789         }
1790
1791         return change;
1792 }
1793
1794 #if 0
1795 static int snd_cs46xx_vol_iec958_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1796 {
1797         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1798
1799         ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_input_volume_left;
1800         ucontrol->value.integer.value[1] = chip->dsp_spos_instance->spdif_input_volume_right;
1801         return 0;
1802 }
1803
1804 static int snd_cs46xx_vol_iec958_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1805 {
1806         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1807         int change = 0;
1808
1809         if (chip->dsp_spos_instance->spdif_input_volume_left  != ucontrol->value.integer.value[0] ||
1810             chip->dsp_spos_instance->spdif_input_volume_right!= ucontrol->value.integer.value[1]) {
1811                 cs46xx_dsp_set_iec958_volume (chip,
1812                                               ucontrol->value.integer.value[0],
1813                                               ucontrol->value.integer.value[1]);
1814                 change = 1;
1815         }
1816
1817         return change;
1818 }
1819 #endif
1820
1821 static int snd_mixer_boolean_info(struct snd_kcontrol *kcontrol, 
1822                                   struct snd_ctl_elem_info *uinfo)
1823 {
1824         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1825         uinfo->count = 1;
1826         uinfo->value.integer.min = 0;
1827         uinfo->value.integer.max = 1;
1828         return 0;
1829 }
1830
1831 static int snd_cs46xx_iec958_get(struct snd_kcontrol *kcontrol, 
1832                                  struct snd_ctl_elem_value *ucontrol)
1833 {
1834         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1835         int reg = kcontrol->private_value;
1836
1837         if (reg == CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT)
1838                 ucontrol->value.integer.value[0] = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
1839         else
1840                 ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_status_in;
1841
1842         return 0;
1843 }
1844
1845 static int snd_cs46xx_iec958_put(struct snd_kcontrol *kcontrol, 
1846                                   struct snd_ctl_elem_value *ucontrol)
1847 {
1848         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1849         int change, res;
1850
1851         switch (kcontrol->private_value) {
1852         case CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT:
1853                 mutex_lock(&chip->spos_mutex);
1854                 change = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
1855                 if (ucontrol->value.integer.value[0] && !change) 
1856                         cs46xx_dsp_enable_spdif_out(chip);
1857                 else if (change && !ucontrol->value.integer.value[0])
1858                         cs46xx_dsp_disable_spdif_out(chip);
1859
1860                 res = (change != (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED));
1861                 mutex_unlock(&chip->spos_mutex);
1862                 break;
1863         case CS46XX_MIXER_SPDIF_INPUT_ELEMENT:
1864                 change = chip->dsp_spos_instance->spdif_status_in;
1865                 if (ucontrol->value.integer.value[0] && !change) {
1866                         cs46xx_dsp_enable_spdif_in(chip);
1867                         /* restore volume */
1868                 }
1869                 else if (change && !ucontrol->value.integer.value[0])
1870                         cs46xx_dsp_disable_spdif_in(chip);
1871                 
1872                 res = (change != chip->dsp_spos_instance->spdif_status_in);
1873                 break;
1874         default:
1875                 res = -EINVAL;
1876                 snd_assert(0, (void)0);
1877         }
1878
1879         return res;
1880 }
1881
1882 static int snd_cs46xx_adc_capture_get(struct snd_kcontrol *kcontrol, 
1883                                       struct snd_ctl_elem_value *ucontrol)
1884 {
1885         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1886         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1887
1888         if (ins->adc_input != NULL) 
1889                 ucontrol->value.integer.value[0] = 1;
1890         else 
1891                 ucontrol->value.integer.value[0] = 0;
1892         
1893         return 0;
1894 }
1895
1896 static int snd_cs46xx_adc_capture_put(struct snd_kcontrol *kcontrol, 
1897                                       struct snd_ctl_elem_value *ucontrol)
1898 {
1899         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1900         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1901         int change = 0;
1902
1903         if (ucontrol->value.integer.value[0] && !ins->adc_input) {
1904                 cs46xx_dsp_enable_adc_capture(chip);
1905                 change = 1;
1906         } else  if (!ucontrol->value.integer.value[0] && ins->adc_input) {
1907                 cs46xx_dsp_disable_adc_capture(chip);
1908                 change = 1;
1909         }
1910         return change;
1911 }
1912
1913 static int snd_cs46xx_pcm_capture_get(struct snd_kcontrol *kcontrol, 
1914                                       struct snd_ctl_elem_value *ucontrol)
1915 {
1916         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1917         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1918
1919         if (ins->pcm_input != NULL) 
1920                 ucontrol->value.integer.value[0] = 1;
1921         else 
1922                 ucontrol->value.integer.value[0] = 0;
1923
1924         return 0;
1925 }
1926
1927
1928 static int snd_cs46xx_pcm_capture_put(struct snd_kcontrol *kcontrol, 
1929                                       struct snd_ctl_elem_value *ucontrol)
1930 {
1931         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1932         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1933         int change = 0;
1934
1935         if (ucontrol->value.integer.value[0] && !ins->pcm_input) {
1936                 cs46xx_dsp_enable_pcm_capture(chip);
1937                 change = 1;
1938         } else  if (!ucontrol->value.integer.value[0] && ins->pcm_input) {
1939                 cs46xx_dsp_disable_pcm_capture(chip);
1940                 change = 1;
1941         }
1942
1943         return change;
1944 }
1945
1946 static int snd_herc_spdif_select_get(struct snd_kcontrol *kcontrol, 
1947                                      struct snd_ctl_elem_value *ucontrol)
1948 {
1949         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1950
1951         int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
1952
1953         if (val1 & EGPIODR_GPOE0)
1954                 ucontrol->value.integer.value[0] = 1;
1955         else
1956                 ucontrol->value.integer.value[0] = 0;
1957
1958         return 0;
1959 }
1960
1961 /*
1962  *      Game Theatre XP card - EGPIO[0] is used to select SPDIF input optical or coaxial.
1963  */ 
1964 static int snd_herc_spdif_select_put(struct snd_kcontrol *kcontrol, 
1965                                        struct snd_ctl_elem_value *ucontrol)
1966 {
1967         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1968         int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
1969         int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
1970
1971         if (ucontrol->value.integer.value[0]) {
1972                 /* optical is default */
1973                 snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, 
1974                                    EGPIODR_GPOE0 | val1);  /* enable EGPIO0 output */
1975                 snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, 
1976                                    EGPIOPTR_GPPT0 | val2); /* open-drain on output */
1977         } else {
1978                 /* coaxial */
1979                 snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE0); /* disable */
1980                 snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT0); /* disable */
1981         }
1982
1983         /* checking diff from the EGPIO direction register 
1984            should be enough */
1985         return (val1 != (int)snd_cs46xx_peekBA0(chip, BA0_EGPIODR));
1986 }
1987
1988
1989 static int snd_cs46xx_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1990 {
1991         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1992         uinfo->count = 1;
1993         return 0;
1994 }
1995
1996 static int snd_cs46xx_spdif_default_get(struct snd_kcontrol *kcontrol,
1997                                         struct snd_ctl_elem_value *ucontrol)
1998 {
1999         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2000         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2001
2002         mutex_lock(&chip->spos_mutex);
2003         ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_default >> 24) & 0xff);
2004         ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_default >> 16) & 0xff);
2005         ucontrol->value.iec958.status[2] = 0;
2006         ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_default) & 0xff);
2007         mutex_unlock(&chip->spos_mutex);
2008
2009         return 0;
2010 }
2011
2012 static int snd_cs46xx_spdif_default_put(struct snd_kcontrol *kcontrol,
2013                                         struct snd_ctl_elem_value *ucontrol)
2014 {
2015         struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
2016         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2017         unsigned int val;
2018         int change;
2019
2020         mutex_lock(&chip->spos_mutex);
2021         val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2022                 ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[2]) << 16) |
2023                 ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3]))  |
2024                 /* left and right validity bit */
2025                 (1 << 13) | (1 << 12);
2026
2027
2028         change = (unsigned int)ins->spdif_csuv_default != val;
2029         ins->spdif_csuv_default = val;
2030
2031         if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) )
2032                 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2033
2034         mutex_unlock(&chip->spos_mutex);
2035
2036         return change;
2037 }
2038
2039 static int snd_cs46xx_spdif_mask_get(struct snd_kcontrol *kcontrol,
2040                                      struct snd_ctl_elem_value *ucontrol)
2041 {
2042         ucontrol->value.iec958.status[0] = 0xff;
2043         ucontrol->value.iec958.status[1] = 0xff;
2044         ucontrol->value.iec958.status[2] = 0x00;
2045         ucontrol->value.iec958.status[3] = 0xff;
2046         return 0;
2047 }
2048
2049 static int snd_cs46xx_spdif_stream_get(struct snd_kcontrol *kcontrol,
2050                                          struct snd_ctl_elem_value *ucontrol)
2051 {
2052         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2053         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2054
2055         mutex_lock(&chip->spos_mutex);
2056         ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_stream >> 24) & 0xff);
2057         ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_stream >> 16) & 0xff);
2058         ucontrol->value.iec958.status[2] = 0;
2059         ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_stream) & 0xff);
2060         mutex_unlock(&chip->spos_mutex);
2061
2062         return 0;
2063 }
2064
2065 static int snd_cs46xx_spdif_stream_put(struct snd_kcontrol *kcontrol,
2066                                         struct snd_ctl_elem_value *ucontrol)
2067 {
2068         struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
2069         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2070         unsigned int val;
2071         int change;
2072
2073         mutex_lock(&chip->spos_mutex);
2074         val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2075                 ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[1]) << 16) |
2076                 ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3])) |
2077                 /* left and right validity bit */
2078                 (1 << 13) | (1 << 12);
2079
2080
2081         change = ins->spdif_csuv_stream != val;
2082         ins->spdif_csuv_stream = val;
2083
2084         if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN )
2085                 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2086
2087         mutex_unlock(&chip->spos_mutex);
2088
2089         return change;
2090 }
2091
2092 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2093
2094
2095 #ifdef CONFIG_SND_CS46XX_DEBUG_GPIO
2096 static int snd_cs46xx_egpio_select_info(struct snd_kcontrol *kcontrol, 
2097                                         struct snd_ctl_elem_info *uinfo)
2098 {
2099         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2100         uinfo->count = 1;
2101         uinfo->value.integer.min = 0;
2102         uinfo->value.integer.max = 8;
2103         return 0;
2104 }
2105
2106 static int snd_cs46xx_egpio_select_get(struct snd_kcontrol *kcontrol, 
2107                                        struct snd_ctl_elem_value *ucontrol)
2108 {
2109         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2110         ucontrol->value.integer.value[0] = chip->current_gpio;
2111
2112         return 0;
2113 }
2114
2115 static int snd_cs46xx_egpio_select_put(struct snd_kcontrol *kcontrol, 
2116                                        struct snd_ctl_elem_value *ucontrol)
2117 {
2118         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2119         int change = (chip->current_gpio != ucontrol->value.integer.value[0]);
2120         chip->current_gpio = ucontrol->value.integer.value[0];
2121
2122         return change;
2123 }
2124
2125
2126 static int snd_cs46xx_egpio_get(struct snd_kcontrol *kcontrol, 
2127                                        struct snd_ctl_elem_value *ucontrol)
2128 {
2129         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2130         int reg = kcontrol->private_value;
2131
2132         snd_printdd ("put: reg = %04x, gpio %02x\n",reg,chip->current_gpio);
2133         ucontrol->value.integer.value[0] = 
2134                 (snd_cs46xx_peekBA0(chip, reg) & (1 << chip->current_gpio)) ? 1 : 0;
2135   
2136         return 0;
2137 }
2138
2139 static int snd_cs46xx_egpio_put(struct snd_kcontrol *kcontrol, 
2140                                        struct snd_ctl_elem_value *ucontrol)
2141 {
2142         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2143         int reg = kcontrol->private_value;
2144         int val = snd_cs46xx_peekBA0(chip, reg);
2145         int oldval = val;
2146         snd_printdd ("put: reg = %04x, gpio %02x\n",reg,chip->current_gpio);
2147
2148         if (ucontrol->value.integer.value[0])
2149                 val |= (1 << chip->current_gpio);
2150         else
2151                 val &= ~(1 << chip->current_gpio);
2152
2153         snd_cs46xx_pokeBA0(chip, reg,val);
2154         snd_printdd ("put: val %08x oldval %08x\n",val,oldval);
2155
2156         return (oldval != val);
2157 }
2158 #endif /* CONFIG_SND_CS46XX_DEBUG_GPIO */
2159
2160 static struct snd_kcontrol_new snd_cs46xx_controls[] __devinitdata = {
2161 {
2162         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2163         .name = "DAC Volume",
2164         .info = snd_cs46xx_vol_info,
2165 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2166         .get = snd_cs46xx_vol_get,
2167         .put = snd_cs46xx_vol_put,
2168         .private_value = BA1_PVOL,
2169 #else
2170         .get = snd_cs46xx_vol_dac_get,
2171         .put = snd_cs46xx_vol_dac_put,
2172 #endif
2173 },
2174
2175 {
2176         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2177         .name = "ADC Volume",
2178         .info = snd_cs46xx_vol_info,
2179         .get = snd_cs46xx_vol_get,
2180         .put = snd_cs46xx_vol_put,
2181 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2182         .private_value = BA1_CVOL,
2183 #else
2184         .private_value = (VARIDECIMATE_SCB_ADDR + 0xE) << 2,
2185 #endif
2186 },
2187 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2188 {
2189         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2190         .name = "ADC Capture Switch",
2191         .info = snd_mixer_boolean_info,
2192         .get = snd_cs46xx_adc_capture_get,
2193         .put = snd_cs46xx_adc_capture_put
2194 },
2195 {
2196         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2197         .name = "DAC Capture Switch",
2198         .info = snd_mixer_boolean_info,
2199         .get = snd_cs46xx_pcm_capture_get,
2200         .put = snd_cs46xx_pcm_capture_put
2201 },
2202 {
2203         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2204         .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
2205         .info = snd_mixer_boolean_info,
2206         .get = snd_cs46xx_iec958_get,
2207         .put = snd_cs46xx_iec958_put,
2208         .private_value = CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT,
2209 },
2210 {
2211         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2212         .name = SNDRV_CTL_NAME_IEC958("Input ",NONE,SWITCH),
2213         .info = snd_mixer_boolean_info,
2214         .get = snd_cs46xx_iec958_get,
2215         .put = snd_cs46xx_iec958_put,
2216         .private_value = CS46XX_MIXER_SPDIF_INPUT_ELEMENT,
2217 },
2218 #if 0
2219 /* Input IEC958 volume does not work for the moment. (Benny) */
2220 {
2221         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2222         .name = SNDRV_CTL_NAME_IEC958("Input ",NONE,VOLUME),
2223         .info = snd_cs46xx_vol_info,
2224         .get = snd_cs46xx_vol_iec958_get,
2225         .put = snd_cs46xx_vol_iec958_put,
2226         .private_value = (ASYNCRX_SCB_ADDR + 0xE) << 2,
2227 },
2228 #endif
2229 {
2230         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
2231         .name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2232         .info =  snd_cs46xx_spdif_info,
2233         .get =   snd_cs46xx_spdif_default_get,
2234         .put =   snd_cs46xx_spdif_default_put,
2235 },
2236 {
2237         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
2238         .name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
2239         .info =  snd_cs46xx_spdif_info,
2240         .get =   snd_cs46xx_spdif_mask_get,
2241         .access = SNDRV_CTL_ELEM_ACCESS_READ
2242 },
2243 {
2244         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
2245         .name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2246         .info =  snd_cs46xx_spdif_info,
2247         .get =   snd_cs46xx_spdif_stream_get,
2248         .put =   snd_cs46xx_spdif_stream_put
2249 },
2250
2251 #endif
2252 #ifdef CONFIG_SND_CS46XX_DEBUG_GPIO
2253 {
2254         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2255         .name = "EGPIO select",
2256         .info = snd_cs46xx_egpio_select_info,
2257         .get = snd_cs46xx_egpio_select_get,
2258         .put = snd_cs46xx_egpio_select_put,
2259         .private_value = 0,
2260 },
2261 {
2262         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2263         .name = "EGPIO Input/Output",
2264         .info = snd_mixer_boolean_info,
2265         .get = snd_cs46xx_egpio_get,
2266         .put = snd_cs46xx_egpio_put,
2267         .private_value = BA0_EGPIODR,
2268 },
2269 {
2270         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2271         .name = "EGPIO CMOS/Open drain",
2272         .info = snd_mixer_boolean_info,
2273         .get = snd_cs46xx_egpio_get,
2274         .put = snd_cs46xx_egpio_put,
2275         .private_value = BA0_EGPIOPTR,
2276 },
2277 {
2278         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2279         .name = "EGPIO On/Off",
2280         .info = snd_mixer_boolean_info,
2281         .get = snd_cs46xx_egpio_get,
2282         .put = snd_cs46xx_egpio_put,
2283         .private_value = BA0_EGPIOSR,
2284 },
2285 #endif
2286 };
2287
2288 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2289 /* set primary cs4294 codec into Extended Audio Mode */
2290 static int snd_cs46xx_front_dup_get(struct snd_kcontrol *kcontrol, 
2291                                     struct snd_ctl_elem_value *ucontrol)
2292 {
2293         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2294         unsigned short val;
2295         val = snd_ac97_read(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX], AC97_CSR_ACMODE);
2296         ucontrol->value.integer.value[0] = (val & 0x200) ? 0 : 1;
2297         return 0;
2298 }
2299
2300 static int snd_cs46xx_front_dup_put(struct snd_kcontrol *kcontrol, 
2301                                     struct snd_ctl_elem_value *ucontrol)
2302 {
2303         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2304         return snd_ac97_update_bits(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2305                                     AC97_CSR_ACMODE, 0x200,
2306                                     ucontrol->value.integer.value[0] ? 0 : 0x200);
2307 }
2308
2309 static struct snd_kcontrol_new snd_cs46xx_front_dup_ctl = {
2310         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2311         .name = "Duplicate Front",
2312         .info = snd_mixer_boolean_info,
2313         .get = snd_cs46xx_front_dup_get,
2314         .put = snd_cs46xx_front_dup_put,
2315 };
2316 #endif
2317
2318 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2319 /* Only available on the Hercules Game Theater XP soundcard */
2320 static struct snd_kcontrol_new snd_hercules_controls[] = {
2321 {
2322         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2323         .name = "Optical/Coaxial SPDIF Input Switch",
2324         .info = snd_mixer_boolean_info,
2325         .get = snd_herc_spdif_select_get,
2326         .put = snd_herc_spdif_select_put,
2327 },
2328 };
2329
2330
2331 static void snd_cs46xx_codec_reset (struct snd_ac97 * ac97)
2332 {
2333         unsigned long end_time;
2334         int err;
2335
2336         /* reset to defaults */
2337         snd_ac97_write(ac97, AC97_RESET, 0);    
2338
2339         /* set the desired CODEC mode */
2340         if (ac97->num == CS46XX_PRIMARY_CODEC_INDEX) {
2341                 snd_printdd("cs46xx: CODOEC1 mode %04x\n",0x0);
2342                 snd_cs46xx_ac97_write(ac97,AC97_CSR_ACMODE,0x0);
2343         } else if (ac97->num == CS46XX_SECONDARY_CODEC_INDEX) {
2344                 snd_printdd("cs46xx: CODOEC2 mode %04x\n",0x3);
2345                 snd_cs46xx_ac97_write(ac97,AC97_CSR_ACMODE,0x3);
2346         } else {
2347                 snd_assert(0); /* should never happen ... */
2348         }
2349
2350         udelay(50);
2351
2352         /* it's necessary to wait awhile until registers are accessible after RESET */
2353         /* because the PCM or MASTER volume registers can be modified, */
2354         /* the REC_GAIN register is used for tests */
2355         end_time = jiffies + HZ;
2356         do {
2357                 unsigned short ext_mid;
2358     
2359                 /* use preliminary reads to settle the communication */
2360                 snd_ac97_read(ac97, AC97_RESET);
2361                 snd_ac97_read(ac97, AC97_VENDOR_ID1);
2362                 snd_ac97_read(ac97, AC97_VENDOR_ID2);
2363                 /* modem? */
2364                 ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2365                 if (ext_mid != 0xffff && (ext_mid & 1) != 0)
2366                         return;
2367
2368                 /* test if we can write to the record gain volume register */
2369                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
2370                 if ((err = snd_ac97_read(ac97, AC97_REC_GAIN)) == 0x8a05)
2371                         return;
2372
2373                 msleep(10);
2374         } while (time_after_eq(end_time, jiffies));
2375
2376         snd_printk(KERN_ERR "CS46xx secondary codec doesn't respond!\n");  
2377 }
2378 #endif
2379
2380 static int __devinit cs46xx_detect_codec(struct snd_cs46xx *chip, int codec)
2381 {
2382         int idx, err;
2383         struct snd_ac97_template ac97;
2384
2385         memset(&ac97, 0, sizeof(ac97));
2386         ac97.private_data = chip;
2387         ac97.private_free = snd_cs46xx_mixer_free_ac97;
2388         ac97.num = codec;
2389         if (chip->amplifier_ctrl == amp_voyetra)
2390                 ac97.scaps = AC97_SCAP_INV_EAPD;
2391
2392         if (codec == CS46XX_SECONDARY_CODEC_INDEX) {
2393                 snd_cs46xx_codec_write(chip, AC97_RESET, 0, codec);
2394                 udelay(10);
2395                 if (snd_cs46xx_codec_read(chip, AC97_RESET, codec) & 0x8000) {
2396                         snd_printdd("snd_cs46xx: seconadry codec not present\n");
2397                         return -ENXIO;
2398                 }
2399         }
2400
2401         snd_cs46xx_codec_write(chip, AC97_MASTER, 0x8000, codec);
2402         for (idx = 0; idx < 100; ++idx) {
2403                 if (snd_cs46xx_codec_read(chip, AC97_MASTER, codec) == 0x8000) {
2404                         err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97[codec]);
2405                         return err;
2406                 }
2407                 msleep(10);
2408         }
2409         snd_printdd("snd_cs46xx: codec %d detection timeout\n", codec);
2410         return -ENXIO;
2411 }
2412
2413 int __devinit snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device)
2414 {
2415         struct snd_card *card = chip->card;
2416         struct snd_ctl_elem_id id;
2417         int err;
2418         unsigned int idx;
2419         static struct snd_ac97_bus_ops ops = {
2420 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2421                 .reset = snd_cs46xx_codec_reset,
2422 #endif
2423                 .write = snd_cs46xx_ac97_write,
2424                 .read = snd_cs46xx_ac97_read,
2425         };
2426
2427         /* detect primary codec */
2428         chip->nr_ac97_codecs = 0;
2429         snd_printdd("snd_cs46xx: detecting primary codec\n");
2430         if ((err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus)) < 0)
2431                 return err;
2432         chip->ac97_bus->private_free = snd_cs46xx_mixer_free_ac97_bus;
2433
2434         if (cs46xx_detect_codec(chip, CS46XX_PRIMARY_CODEC_INDEX) < 0)
2435                 return -ENXIO;
2436         chip->nr_ac97_codecs = 1;
2437
2438 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2439         snd_printdd("snd_cs46xx: detecting seconadry codec\n");
2440         /* try detect a secondary codec */
2441         if (! cs46xx_detect_codec(chip, CS46XX_SECONDARY_CODEC_INDEX))
2442                 chip->nr_ac97_codecs = 2;
2443 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2444
2445         /* add cs4630 mixer controls */
2446         for (idx = 0; idx < ARRAY_SIZE(snd_cs46xx_controls); idx++) {
2447                 struct snd_kcontrol *kctl;
2448                 kctl = snd_ctl_new1(&snd_cs46xx_controls[idx], chip);
2449                 if (kctl && kctl->id.iface == SNDRV_CTL_ELEM_IFACE_PCM)
2450                         kctl->id.device = spdif_device;
2451                 if ((err = snd_ctl_add(card, kctl)) < 0)
2452                         return err;
2453         }
2454
2455         /* get EAPD mixer switch (for voyetra hack) */
2456         memset(&id, 0, sizeof(id));
2457         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2458         strcpy(id.name, "External Amplifier");
2459         chip->eapd_switch = snd_ctl_find_id(chip->card, &id);
2460     
2461 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2462         if (chip->nr_ac97_codecs == 1) {
2463                 unsigned int id2 = chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]->id & 0xffff;
2464                 if (id2 == 0x592b || id2 == 0x592d) {
2465                         err = snd_ctl_add(card, snd_ctl_new1(&snd_cs46xx_front_dup_ctl, chip));
2466                         if (err < 0)
2467                                 return err;
2468                         snd_ac97_write_cache(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2469                                              AC97_CSR_ACMODE, 0x200);
2470                 }
2471         }
2472         /* do soundcard specific mixer setup */
2473         if (chip->mixer_init) {
2474                 snd_printdd ("calling chip->mixer_init(chip);\n");
2475                 chip->mixer_init(chip);
2476         }
2477 #endif
2478
2479         /* turn on amplifier */
2480         chip->amplifier_ctrl(chip, 1);
2481     
2482         return 0;
2483 }
2484
2485 /*
2486  *  RawMIDI interface
2487  */
2488
2489 static void snd_cs46xx_midi_reset(struct snd_cs46xx *chip)
2490 {
2491         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, MIDCR_MRST);
2492         udelay(100);
2493         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2494 }
2495
2496 static int snd_cs46xx_midi_input_open(struct snd_rawmidi_substream *substream)
2497 {
2498         struct snd_cs46xx *chip = substream->rmidi->private_data;
2499
2500         chip->active_ctrl(chip, 1);
2501         spin_lock_irq(&chip->reg_lock);
2502         chip->uartm |= CS46XX_MODE_INPUT;
2503         chip->midcr |= MIDCR_RXE;
2504         chip->midi_input = substream;
2505         if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2506                 snd_cs46xx_midi_reset(chip);
2507         } else {
2508                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2509         }
2510         spin_unlock_irq(&chip->reg_lock);
2511         return 0;
2512 }
2513
2514 static int snd_cs46xx_midi_input_close(struct snd_rawmidi_substream *substream)
2515 {
2516         struct snd_cs46xx *chip = substream->rmidi->private_data;
2517
2518         spin_lock_irq(&chip->reg_lock);
2519         chip->midcr &= ~(MIDCR_RXE | MIDCR_RIE);
2520         chip->midi_input = NULL;
2521         if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2522                 snd_cs46xx_midi_reset(chip);
2523         } else {
2524                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2525         }
2526         chip->uartm &= ~CS46XX_MODE_INPUT;
2527         spin_unlock_irq(&chip->reg_lock);
2528         chip->active_ctrl(chip, -1);
2529         return 0;
2530 }
2531
2532 static int snd_cs46xx_midi_output_open(struct snd_rawmidi_substream *substream)
2533 {
2534         struct snd_cs46xx *chip = substream->rmidi->private_data;
2535
2536         chip->active_ctrl(chip, 1);
2537
2538         spin_lock_irq(&chip->reg_lock);
2539         chip->uartm |= CS46XX_MODE_OUTPUT;
2540         chip->midcr |= MIDCR_TXE;
2541         chip->midi_output = substream;
2542         if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2543                 snd_cs46xx_midi_reset(chip);
2544         } else {
2545                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2546         }
2547         spin_unlock_irq(&chip->reg_lock);
2548         return 0;
2549 }
2550
2551 static int snd_cs46xx_midi_output_close(struct snd_rawmidi_substream *substream)
2552 {
2553         struct snd_cs46xx *chip = substream->rmidi->private_data;
2554
2555         spin_lock_irq(&chip->reg_lock);
2556         chip->midcr &= ~(MIDCR_TXE | MIDCR_TIE);
2557         chip->midi_output = NULL;
2558         if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2559                 snd_cs46xx_midi_reset(chip);
2560         } else {
2561                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2562         }
2563         chip->uartm &= ~CS46XX_MODE_OUTPUT;
2564         spin_unlock_irq(&chip->reg_lock);
2565         chip->active_ctrl(chip, -1);
2566         return 0;
2567 }
2568
2569 static void snd_cs46xx_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
2570 {
2571         unsigned long flags;
2572         struct snd_cs46xx *chip = substream->rmidi->private_data;
2573
2574         spin_lock_irqsave(&chip->reg_lock, flags);
2575         if (up) {
2576                 if ((chip->midcr & MIDCR_RIE) == 0) {
2577                         chip->midcr |= MIDCR_RIE;
2578                         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2579                 }
2580         } else {
2581                 if (chip->midcr & MIDCR_RIE) {
2582                         chip->midcr &= ~MIDCR_RIE;
2583                         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2584                 }
2585         }
2586         spin_unlock_irqrestore(&chip->reg_lock, flags);
2587 }
2588
2589 static void snd_cs46xx_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
2590 {
2591         unsigned long flags;
2592         struct snd_cs46xx *chip = substream->rmidi->private_data;
2593         unsigned char byte;
2594
2595         spin_lock_irqsave(&chip->reg_lock, flags);
2596         if (up) {
2597                 if ((chip->midcr & MIDCR_TIE) == 0) {
2598                         chip->midcr |= MIDCR_TIE;
2599                         /* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */
2600                         while ((chip->midcr & MIDCR_TIE) &&
2601                                (snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
2602                                 if (snd_rawmidi_transmit(substream, &byte, 1) != 1) {
2603                                         chip->midcr &= ~MIDCR_TIE;
2604                                 } else {
2605                                         snd_cs46xx_pokeBA0(chip, BA0_MIDWP, byte);
2606                                 }
2607                         }
2608                         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2609                 }
2610         } else {
2611                 if (chip->midcr & MIDCR_TIE) {
2612                         chip->midcr &= ~MIDCR_TIE;
2613                         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2614                 }
2615         }
2616         spin_unlock_irqrestore(&chip->reg_lock, flags);
2617 }
2618
2619 static struct snd_rawmidi_ops snd_cs46xx_midi_output =
2620 {
2621         .open =         snd_cs46xx_midi_output_open,
2622         .close =        snd_cs46xx_midi_output_close,
2623         .trigger =      snd_cs46xx_midi_output_trigger,
2624 };
2625
2626 static struct snd_rawmidi_ops snd_cs46xx_midi_input =
2627 {
2628         .open =         snd_cs46xx_midi_input_open,
2629         .close =        snd_cs46xx_midi_input_close,
2630         .trigger =      snd_cs46xx_midi_input_trigger,
2631 };
2632
2633 int __devinit snd_cs46xx_midi(struct snd_cs46xx *chip, int device, struct snd_rawmidi **rrawmidi)
2634 {
2635         struct snd_rawmidi *rmidi;
2636         int err;
2637
2638         if (rrawmidi)
2639                 *rrawmidi = NULL;
2640         if ((err = snd_rawmidi_new(chip->card, "CS46XX", device, 1, 1, &rmidi)) < 0)
2641                 return err;
2642         strcpy(rmidi->name, "CS46XX");
2643         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_cs46xx_midi_output);
2644         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_cs46xx_midi_input);
2645         rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX;
2646         rmidi->private_data = chip;
2647         chip->rmidi = rmidi;
2648         if (rrawmidi)
2649                 *rrawmidi = NULL;
2650         return 0;
2651 }
2652
2653
2654 /*
2655  * gameport interface
2656  */
2657
2658 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
2659
2660 static void snd_cs46xx_gameport_trigger(struct gameport *gameport)
2661 {
2662         struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2663
2664         snd_assert(chip, return);
2665         snd_cs46xx_pokeBA0(chip, BA0_JSPT, 0xFF);  //outb(gameport->io, 0xFF);
2666 }
2667
2668 static unsigned char snd_cs46xx_gameport_read(struct gameport *gameport)
2669 {
2670         struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2671
2672         snd_assert(chip, return 0);
2673         return snd_cs46xx_peekBA0(chip, BA0_JSPT); //inb(gameport->io);
2674 }
2675
2676 static int snd_cs46xx_gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
2677 {
2678         struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2679         unsigned js1, js2, jst;
2680
2681         snd_assert(chip, return 0);
2682
2683         js1 = snd_cs46xx_peekBA0(chip, BA0_JSC1);
2684         js2 = snd_cs46xx_peekBA0(chip, BA0_JSC2);
2685         jst = snd_cs46xx_peekBA0(chip, BA0_JSPT);
2686         
2687         *buttons = (~jst >> 4) & 0x0F; 
2688         
2689         axes[0] = ((js1 & JSC1_Y1V_MASK) >> JSC1_Y1V_SHIFT) & 0xFFFF;
2690         axes[1] = ((js1 & JSC1_X1V_MASK) >> JSC1_X1V_SHIFT) & 0xFFFF;
2691         axes[2] = ((js2 & JSC2_Y2V_MASK) >> JSC2_Y2V_SHIFT) & 0xFFFF;
2692         axes[3] = ((js2 & JSC2_X2V_MASK) >> JSC2_X2V_SHIFT) & 0xFFFF;
2693
2694         for(jst=0;jst<4;++jst)
2695                 if(axes[jst]==0xFFFF) axes[jst] = -1;
2696         return 0;
2697 }
2698
2699 static int snd_cs46xx_gameport_open(struct gameport *gameport, int mode)
2700 {
2701         switch (mode) {
2702         case GAMEPORT_MODE_COOKED:
2703                 return 0;
2704         case GAMEPORT_MODE_RAW:
2705                 return 0;
2706         default:
2707                 return -1;
2708         }
2709         return 0;
2710 }
2711
2712 int __devinit snd_cs46xx_gameport(struct snd_cs46xx *chip)
2713 {
2714         struct gameport *gp;
2715
2716         chip->gameport = gp = gameport_allocate_port();
2717         if (!gp) {
2718                 printk(KERN_ERR "cs46xx: cannot allocate memory for gameport\n");
2719                 return -ENOMEM;
2720         }
2721
2722         gameport_set_name(gp, "CS46xx Gameport");
2723         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
2724         gameport_set_dev_parent(gp, &chip->pci->dev);
2725         gameport_set_port_data(gp, chip);
2726
2727         gp->open = snd_cs46xx_gameport_open;
2728         gp->read = snd_cs46xx_gameport_read;
2729         gp->trigger = snd_cs46xx_gameport_trigger;
2730         gp->cooked_read = snd_cs46xx_gameport_cooked_read;
2731
2732         snd_cs46xx_pokeBA0(chip, BA0_JSIO, 0xFF); // ?
2733         snd_cs46xx_pokeBA0(chip, BA0_JSCTL, JSCTL_SP_MEDIUM_SLOW);
2734
2735         gameport_register_port(gp);
2736
2737         return 0;
2738 }
2739
2740 static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip)
2741 {
2742         if (chip->gameport) {
2743                 gameport_unregister_port(chip->gameport);
2744                 chip->gameport = NULL;
2745         }
2746 }
2747 #else
2748 int __devinit snd_cs46xx_gameport(struct snd_cs46xx *chip) { return -ENOSYS; }
2749 static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip) { }
2750 #endif /* CONFIG_GAMEPORT */
2751
2752 #ifdef CONFIG_PROC_FS
2753 /*
2754  *  proc interface
2755  */
2756
2757 static long snd_cs46xx_io_read(struct snd_info_entry *entry, void *file_private_data,
2758                                struct file *file, char __user *buf,
2759                                unsigned long count, unsigned long pos)
2760 {
2761         long size;
2762         struct snd_cs46xx_region *region = entry->private_data;
2763         
2764         size = count;
2765         if (pos + (size_t)size > region->size)
2766                 size = region->size - pos;
2767         if (size > 0) {
2768                 if (copy_to_user_fromio(buf, region->remap_addr + pos, size))
2769                         return -EFAULT;
2770         }
2771         return size;
2772 }
2773
2774 static struct snd_info_entry_ops snd_cs46xx_proc_io_ops = {
2775         .read = snd_cs46xx_io_read,
2776 };
2777
2778 static int __devinit snd_cs46xx_proc_init(struct snd_card *card, struct snd_cs46xx *chip)
2779 {
2780         struct snd_info_entry *entry;
2781         int idx;
2782         
2783         for (idx = 0; idx < 5; idx++) {
2784                 struct snd_cs46xx_region *region = &chip->region.idx[idx];
2785                 if (! snd_card_proc_new(card, region->name, &entry)) {
2786                         entry->content = SNDRV_INFO_CONTENT_DATA;
2787                         entry->private_data = chip;
2788                         entry->c.ops = &snd_cs46xx_proc_io_ops;
2789                         entry->size = region->size;
2790                         entry->mode = S_IFREG | S_IRUSR;
2791                 }
2792         }
2793 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2794         cs46xx_dsp_proc_init(card, chip);
2795 #endif
2796         return 0;
2797 }
2798
2799 static int snd_cs46xx_proc_done(struct snd_cs46xx *chip)
2800 {
2801 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2802         cs46xx_dsp_proc_done(chip);
2803 #endif
2804         return 0;
2805 }
2806 #else /* !CONFIG_PROC_FS */
2807 #define snd_cs46xx_proc_init(card, chip)
2808 #define snd_cs46xx_proc_done(chip)
2809 #endif
2810
2811 /*
2812  * stop the h/w
2813  */
2814 static void snd_cs46xx_hw_stop(struct snd_cs46xx *chip)
2815 {
2816         unsigned int tmp;
2817
2818         tmp = snd_cs46xx_peek(chip, BA1_PFIE);
2819         tmp &= ~0x0000f03f;
2820         tmp |=  0x00000010;
2821         snd_cs46xx_poke(chip, BA1_PFIE, tmp);   /* playback interrupt disable */
2822
2823         tmp = snd_cs46xx_peek(chip, BA1_CIE);
2824         tmp &= ~0x0000003f;
2825         tmp |=  0x00000011;
2826         snd_cs46xx_poke(chip, BA1_CIE, tmp);    /* capture interrupt disable */
2827
2828         /*
2829          *  Stop playback DMA.
2830          */
2831         tmp = snd_cs46xx_peek(chip, BA1_PCTL);
2832         snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
2833
2834         /*
2835          *  Stop capture DMA.
2836          */
2837         tmp = snd_cs46xx_peek(chip, BA1_CCTL);
2838         snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
2839
2840         /*
2841          *  Reset the processor.
2842          */
2843         snd_cs46xx_reset(chip);
2844
2845         snd_cs46xx_proc_stop(chip);
2846
2847         /*
2848          *  Power down the PLL.
2849          */
2850         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
2851
2852         /*
2853          *  Turn off the Processor by turning off the software clock enable flag in 
2854          *  the clock control register.
2855          */
2856         tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE;
2857         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
2858 }
2859
2860
2861 static int snd_cs46xx_free(struct snd_cs46xx *chip)
2862 {
2863         int idx;
2864
2865         snd_assert(chip != NULL, return -EINVAL);
2866
2867         if (chip->active_ctrl)
2868                 chip->active_ctrl(chip, 1);
2869
2870         snd_cs46xx_remove_gameport(chip);
2871
2872         if (chip->amplifier_ctrl)
2873                 chip->amplifier_ctrl(chip, -chip->amplifier); /* force to off */
2874         
2875         snd_cs46xx_proc_done(chip);
2876
2877         if (chip->region.idx[0].resource)
2878                 snd_cs46xx_hw_stop(chip);
2879
2880         if (chip->irq >= 0)
2881                 free_irq(chip->irq, chip);
2882
2883         for (idx = 0; idx < 5; idx++) {
2884                 struct snd_cs46xx_region *region = &chip->region.idx[idx];
2885                 if (region->remap_addr)
2886                         iounmap(region->remap_addr);
2887                 release_and_free_resource(region->resource);
2888         }
2889
2890         if (chip->active_ctrl)
2891                 chip->active_ctrl(chip, -chip->amplifier);
2892         
2893 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2894         if (chip->dsp_spos_instance) {
2895                 cs46xx_dsp_spos_destroy(chip);
2896                 chip->dsp_spos_instance = NULL;
2897         }
2898 #endif
2899         
2900         pci_disable_device(chip->pci);
2901         kfree(chip);
2902         return 0;
2903 }
2904
2905 static int snd_cs46xx_dev_free(struct snd_device *device)
2906 {
2907         struct snd_cs46xx *chip = device->device_data;
2908         return snd_cs46xx_free(chip);
2909 }
2910
2911 /*
2912  *  initialize chip
2913  */
2914 static int snd_cs46xx_chip_init(struct snd_cs46xx *chip)
2915 {
2916         int timeout;
2917
2918         /* 
2919          *  First, blast the clock control register to zero so that the PLL starts
2920          *  out in a known state, and blast the master serial port control register
2921          *  to zero so that the serial ports also start out in a known state.
2922          */
2923         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
2924         snd_cs46xx_pokeBA0(chip, BA0_SERMC1, 0);
2925
2926         /*
2927          *  If we are in AC97 mode, then we must set the part to a host controlled
2928          *  AC-link.  Otherwise, we won't be able to bring up the link.
2929          */        
2930 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2931         snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0 | 
2932                            SERACC_TWO_CODECS);  /* 2.00 dual codecs */
2933         /* snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0); */ /* 2.00 codec */
2934 #else
2935         snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_1_03); /* 1.03 codec */
2936 #endif
2937
2938         /*
2939          *  Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97
2940          *  spec) and then drive it high.  This is done for non AC97 modes since
2941          *  there might be logic external to the CS461x that uses the ARST# line
2942          *  for a reset.
2943          */
2944         snd_cs46xx_pokeBA0(chip, BA0_ACCTL, 0);
2945 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2946         snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, 0);
2947 #endif
2948         udelay(50);
2949         snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_RSTN);
2950 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2951         snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_RSTN);
2952 #endif
2953     
2954         /*
2955          *  The first thing we do here is to enable sync generation.  As soon
2956          *  as we start receiving bit clock, we'll start producing the SYNC
2957          *  signal.
2958          */
2959         snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_ESYN | ACCTL_RSTN);
2960 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2961         snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_ESYN | ACCTL_RSTN);
2962 #endif
2963
2964         /*
2965          *  Now wait for a short while to allow the AC97 part to start
2966          *  generating bit clock (so we don't try to start the PLL without an
2967          *  input clock).
2968          */
2969         mdelay(10);
2970
2971         /*
2972          *  Set the serial port timing configuration, so that
2973          *  the clock control circuit gets its clock from the correct place.
2974          */
2975         snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97);
2976
2977         /*
2978          *  Write the selected clock control setup to the hardware.  Do not turn on
2979          *  SWCE yet (if requested), so that the devices clocked by the output of
2980          *  PLL are not clocked until the PLL is stable.
2981          */
2982         snd_cs46xx_pokeBA0(chip, BA0_PLLCC, PLLCC_LPF_1050_2780_KHZ | PLLCC_CDR_73_104_MHZ);
2983         snd_cs46xx_pokeBA0(chip, BA0_PLLM, 0x3a);
2984         snd_cs46xx_pokeBA0(chip, BA0_CLKCR2, CLKCR2_PDIVS_8);
2985
2986         /*
2987          *  Power up the PLL.
2988          */
2989         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP);
2990
2991         /*
2992          *  Wait until the PLL has stabilized.
2993          */
2994         msleep(100);
2995
2996         /*
2997          *  Turn on clocking of the core so that we can setup the serial ports.
2998          */
2999         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP | CLKCR1_SWCE);
3000
3001         /*
3002          * Enable FIFO  Host Bypass
3003          */
3004         snd_cs46xx_pokeBA0(chip, BA0_SERBCF, SERBCF_HBP);
3005
3006         /*
3007          *  Fill the serial port FIFOs with silence.
3008          */
3009         snd_cs46xx_clear_serial_FIFOs(chip);
3010
3011         /*
3012          *  Set the serial port FIFO pointer to the first sample in the FIFO.
3013          */
3014         /* snd_cs46xx_pokeBA0(chip, BA0_SERBSP, 0); */
3015
3016         /*
3017          *  Write the serial port configuration to the part.  The master
3018          *  enable bit is not set until all other values have been written.
3019          */
3020         snd_cs46xx_pokeBA0(chip, BA0_SERC1, SERC1_SO1F_AC97 | SERC1_SO1EN);
3021         snd_cs46xx_pokeBA0(chip, BA0_SERC2, SERC2_SI1F_AC97 | SERC1_SO1EN);
3022         snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97 | SERMC1_MSPE);
3023
3024
3025 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3026         snd_cs46xx_pokeBA0(chip, BA0_SERC7, SERC7_ASDI2EN);
3027         snd_cs46xx_pokeBA0(chip, BA0_SERC3, 0);
3028         snd_cs46xx_pokeBA0(chip, BA0_SERC4, 0);
3029         snd_cs46xx_pokeBA0(chip, BA0_SERC5, 0);
3030         snd_cs46xx_pokeBA0(chip, BA0_SERC6, 1);
3031 #endif
3032
3033         mdelay(5);
3034
3035
3036         /*
3037          * Wait for the codec ready signal from the AC97 codec.
3038          */
3039         timeout = 150;
3040         while (timeout-- > 0) {
3041                 /*
3042                  *  Read the AC97 status register to see if we've seen a CODEC READY
3043                  *  signal from the AC97 codec.
3044                  */
3045                 if (snd_cs46xx_peekBA0(chip, BA0_ACSTS) & ACSTS_CRDY)
3046                         goto ok1;
3047                 msleep(10);
3048         }
3049
3050
3051         snd_printk(KERN_ERR "create - never read codec ready from AC'97\n");
3052         snd_printk(KERN_ERR "it is not probably bug, try to use CS4236 driver\n");
3053         return -EIO;
3054  ok1:
3055 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3056         {
3057                 int count;
3058                 for (count = 0; count < 150; count++) {
3059                         /* First, we want to wait for a short time. */
3060                         udelay(25);
3061         
3062                         if (snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY)
3063                                 break;
3064                 }
3065
3066                 /*
3067                  *  Make sure CODEC is READY.
3068                  */
3069                 if (!(snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY))
3070                         snd_printdd("cs46xx: never read card ready from secondary AC'97\n");
3071         }
3072 #endif
3073
3074         /*
3075          *  Assert the vaid frame signal so that we can start sending commands
3076          *  to the AC97 codec.
3077          */
3078         snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
3079 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3080         snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
3081 #endif
3082
3083
3084         /*
3085          *  Wait until we've sampled input slots 3 and 4 as valid, meaning that
3086          *  the codec is pumping ADC data across the AC-link.
3087          */
3088         timeout = 150;
3089         while (timeout-- > 0) {
3090                 /*
3091                  *  Read the input slot valid register and see if input slots 3 and
3092                  *  4 are valid yet.
3093                  */
3094                 if ((snd_cs46xx_peekBA0(chip, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
3095                         goto ok2;
3096                 msleep(10);
3097         }
3098
3099 #ifndef CONFIG_SND_CS46XX_NEW_DSP
3100         snd_printk(KERN_ERR "create - never read ISV3 & ISV4 from AC'97\n");
3101         return -EIO;
3102 #else
3103         /* This may happen on a cold boot with a Terratec SiXPack 5.1.
3104            Reloading the driver may help, if there's other soundcards 
3105            with the same problem I would like to know. (Benny) */
3106
3107         snd_printk(KERN_ERR "ERROR: snd-cs46xx: never read ISV3 & ISV4 from AC'97\n");
3108         snd_printk(KERN_ERR "       Try reloading the ALSA driver, if you find something\n");
3109         snd_printk(KERN_ERR "       broken or not working on your soundcard upon\n");
3110         snd_printk(KERN_ERR "       this message please report to alsa-devel@lists.sourceforge.net\n");
3111
3112         return -EIO;
3113 #endif
3114  ok2:
3115
3116         /*
3117          *  Now, assert valid frame and the slot 3 and 4 valid bits.  This will
3118          *  commense the transfer of digital audio data to the AC97 codec.
3119          */
3120
3121         snd_cs46xx_pokeBA0(chip, BA0_ACOSV, ACOSV_SLV3 | ACOSV_SLV4);
3122
3123
3124         /*
3125          *  Power down the DAC and ADC.  We will power them up (if) when we need
3126          *  them.
3127          */
3128         /* snd_cs46xx_pokeBA0(chip, BA0_AC97_POWERDOWN, 0x300); */
3129
3130         /*
3131          *  Turn off the Processor by turning off the software clock enable flag in 
3132          *  the clock control register.
3133          */
3134         /* tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE; */
3135         /* snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp); */
3136
3137         return 0;
3138 }
3139
3140 /*
3141  *  start and load DSP 
3142  */
3143 int __devinit snd_cs46xx_start_dsp(struct snd_cs46xx *chip)
3144 {       
3145         unsigned int tmp;
3146         /*
3147          *  Reset the processor.
3148          */
3149         snd_cs46xx_reset(chip);
3150         /*
3151          *  Download the image to the processor.
3152          */
3153 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3154 #if 0
3155         if (cs46xx_dsp_load_module(chip, &cwcemb80_module) < 0) {
3156                 snd_printk(KERN_ERR "image download error\n");
3157                 return -EIO;
3158         }
3159 #endif
3160
3161         if (cs46xx_dsp_load_module(chip, &cwc4630_module) < 0) {
3162                 snd_printk(KERN_ERR "image download error [cwc4630]\n");
3163                 return -EIO;
3164         }
3165
3166         if (cs46xx_dsp_load_module(chip, &cwcasync_module) < 0) {
3167                 snd_printk(KERN_ERR "image download error [cwcasync]\n");
3168                 return -EIO;
3169         }
3170
3171         if (cs46xx_dsp_load_module(chip, &cwcsnoop_module) < 0) {
3172                 snd_printk(KERN_ERR "image download error [cwcsnoop]\n");
3173                 return -EIO;
3174         }
3175
3176         if (cs46xx_dsp_load_module(chip, &cwcbinhack_module) < 0) {
3177                 snd_printk(KERN_ERR "image download error [cwcbinhack]\n");
3178                 return -EIO;
3179         }
3180
3181         if (cs46xx_dsp_load_module(chip, &cwcdma_module) < 0) {
3182                 snd_printk(KERN_ERR "image download error [cwcdma]\n");
3183                 return -EIO;
3184         }
3185
3186         if (cs46xx_dsp_scb_and_task_init(chip) < 0)
3187                 return -EIO;
3188 #else
3189         /* old image */
3190         if (snd_cs46xx_download_image(chip) < 0) {
3191                 snd_printk(KERN_ERR "image download error\n");
3192                 return -EIO;
3193         }
3194
3195         /*
3196          *  Stop playback DMA.
3197          */
3198         tmp = snd_cs46xx_peek(chip, BA1_PCTL);
3199         chip->play_ctl = tmp & 0xffff0000;
3200         snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
3201 #endif
3202
3203         /*
3204          *  Stop capture DMA.
3205          */
3206         tmp = snd_cs46xx_peek(chip, BA1_CCTL);
3207         chip->capt.ctl = tmp & 0x0000ffff;
3208         snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
3209
3210         mdelay(5);
3211
3212         snd_cs46xx_set_play_sample_rate(chip, 8000);
3213         snd_cs46xx_set_capture_sample_rate(chip, 8000);
3214
3215         snd_cs46xx_proc_start(chip);
3216
3217         /*
3218          *  Enable interrupts on the part.
3219          */
3220         snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_IEV | HICR_CHGM);
3221         
3222         tmp = snd_cs46xx_peek(chip, BA1_PFIE);
3223         tmp &= ~0x0000f03f;
3224         snd_cs46xx_poke(chip, BA1_PFIE, tmp);   /* playback interrupt enable */
3225
3226         tmp = snd_cs46xx_peek(chip, BA1_CIE);
3227         tmp &= ~0x0000003f;
3228         tmp |=  0x00000001;
3229         snd_cs46xx_poke(chip, BA1_CIE, tmp);    /* capture interrupt enable */
3230         
3231 #ifndef CONFIG_SND_CS46XX_NEW_DSP
3232         /* set the attenuation to 0dB */ 
3233         snd_cs46xx_poke(chip, BA1_PVOL, 0x80008000);
3234         snd_cs46xx_poke(chip, BA1_CVOL, 0x80008000);
3235 #endif
3236
3237         return 0;
3238 }
3239
3240
3241 /*
3242  *      AMP control - null AMP
3243  */
3244  
3245 static void amp_none(struct snd_cs46xx *chip, int change)
3246 {       
3247 }
3248
3249 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3250 static int voyetra_setup_eapd_slot(struct snd_cs46xx *chip)
3251 {
3252         
3253         u32 idx, valid_slots,tmp,powerdown = 0;
3254         u16 modem_power,pin_config,logic_type;
3255
3256         snd_printdd ("cs46xx: cs46xx_setup_eapd_slot()+\n");
3257
3258         /*
3259          *  See if the devices are powered down.  If so, we must power them up first
3260          *  or they will not respond.
3261          */
3262         tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
3263
3264         if (!(tmp & CLKCR1_SWCE)) {
3265                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
3266                 powerdown = 1;
3267         }
3268
3269         /*
3270          * Clear PRA.  The Bonzo chip will be used for GPIO not for modem
3271          * stuff.
3272          */
3273         if(chip->nr_ac97_codecs != 2) {
3274                 snd_printk (KERN_ERR "cs46xx: cs46xx_setup_eapd_slot() - no secondary codec configured\n");
3275                 return -EINVAL;
3276         }
3277
3278         modem_power = snd_cs46xx_codec_read (chip, 
3279                                              AC97_EXTENDED_MSTATUS,
3280                                              CS46XX_SECONDARY_CODEC_INDEX);
3281         modem_power &=0xFEFF;
3282
3283         snd_cs46xx_codec_write(chip, 
3284                                AC97_EXTENDED_MSTATUS, modem_power,
3285                                CS46XX_SECONDARY_CODEC_INDEX);
3286
3287         /*
3288          * Set GPIO pin's 7 and 8 so that they are configured for output.
3289          */
3290         pin_config = snd_cs46xx_codec_read (chip, 
3291                                             AC97_GPIO_CFG,
3292                                             CS46XX_SECONDARY_CODEC_INDEX);
3293         pin_config &=0x27F;
3294
3295         snd_cs46xx_codec_write(chip, 
3296                                AC97_GPIO_CFG, pin_config,
3297                                CS46XX_SECONDARY_CODEC_INDEX);
3298     
3299         /*
3300          * Set GPIO pin's 7 and 8 so that they are compatible with CMOS logic.
3301          */
3302
3303         logic_type = snd_cs46xx_codec_read(chip, AC97_GPIO_POLARITY,
3304                                            CS46XX_SECONDARY_CODEC_INDEX);
3305         logic_type &=0x27F; 
3306
3307         snd_cs46xx_codec_write (chip, AC97_GPIO_POLARITY, logic_type,
3308                                 CS46XX_SECONDARY_CODEC_INDEX);
3309
3310         valid_slots = snd_cs46xx_peekBA0(chip, BA0_ACOSV);
3311         valid_slots |= 0x200;
3312         snd_cs46xx_pokeBA0(chip, BA0_ACOSV, valid_slots);
3313
3314         if ( cs46xx_wait_for_fifo(chip,1) ) {
3315           snd_printdd("FIFO is busy\n");
3316           
3317           return -EINVAL;
3318         }
3319
3320         /*
3321          * Fill slots 12 with the correct value for the GPIO pins. 
3322          */
3323         for(idx = 0x90; idx <= 0x9F; idx++) {
3324                 /*
3325                  * Initialize the fifo so that bits 7 and 8 are on.
3326                  *
3327                  * Remember that the GPIO pins in bonzo are shifted by 4 bits to
3328                  * the left.  0x1800 corresponds to bits 7 and 8.
3329                  */
3330                 snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0x1800);
3331
3332                 /*
3333                  * Wait for command to complete
3334                  */
3335                 if ( cs46xx_wait_for_fifo(chip,200) ) {
3336                         snd_printdd("failed waiting for FIFO at addr (%02X)\n",idx);
3337
3338                         return -EINVAL;
3339                 }
3340             
3341                 /*
3342                  * Write the serial port FIFO index.
3343                  */
3344                 snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
3345       
3346                 /*
3347                  * Tell the serial port to load the new value into the FIFO location.
3348                  */
3349                 snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
3350         }
3351
3352         /* wait for last command to complete */
3353         cs46xx_wait_for_fifo(chip,200);
3354
3355         /*
3356          *  Now, if we powered up the devices, then power them back down again.
3357          *  This is kinda ugly, but should never happen.
3358          */
3359         if (powerdown)
3360                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
3361
3362         return 0;
3363 }
3364 #endif
3365
3366 /*
3367  *      Crystal EAPD mode
3368  */
3369  
3370 static void amp_voyetra(struct snd_cs46xx *chip, int change)
3371 {
3372         /* Manage the EAPD bit on the Crystal 4297 
3373            and the Analog AD1885 */
3374            
3375 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3376         int old = chip->amplifier;
3377 #endif
3378         int oval, val;
3379         
3380         chip->amplifier += change;
3381         oval = snd_cs46xx_codec_read(chip, AC97_POWERDOWN,
3382                                      CS46XX_PRIMARY_CODEC_INDEX);
3383         val = oval;
3384         if (chip->amplifier) {
3385                 /* Turn the EAPD amp on */
3386                 val |= 0x8000;
3387         } else {
3388                 /* Turn the EAPD amp off */
3389                 val &= ~0x8000;
3390         }
3391         if (val != oval) {
3392                 snd_cs46xx_codec_write(chip, AC97_POWERDOWN, val,
3393                                        CS46XX_PRIMARY_CODEC_INDEX);
3394                 if (chip->eapd_switch)
3395                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
3396                                        &chip->eapd_switch->id);
3397         }
3398
3399 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3400         if (chip->amplifier && !old) {
3401                 voyetra_setup_eapd_slot(chip);
3402         }
3403 #endif
3404 }
3405
3406 static void hercules_init(struct snd_cs46xx *chip) 
3407 {
3408         /* default: AMP off, and SPDIF input optical */
3409         snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3410         snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3411 }
3412
3413
3414 /*
3415  *      Game Theatre XP card - EGPIO[2] is used to enable the external amp.
3416  */ 
3417 static void amp_hercules(struct snd_cs46xx *chip, int change)
3418 {
3419         int old = chip->amplifier;
3420         int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
3421         int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
3422
3423         chip->amplifier += change;
3424         if (chip->amplifier && !old) {
3425                 snd_printdd ("Hercules amplifier ON\n");
3426
3427                 snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, 
3428                                    EGPIODR_GPOE2 | val1);     /* enable EGPIO2 output */
3429                 snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, 
3430                                    EGPIOPTR_GPPT2 | val2);   /* open-drain on output */
3431         } else if (old && !chip->amplifier) {
3432                 snd_printdd ("Hercules amplifier OFF\n");
3433                 snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE2); /* disable */
3434                 snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT2); /* disable */
3435         }
3436 }
3437
3438 static void voyetra_mixer_init (struct snd_cs46xx *chip)
3439 {
3440         snd_printdd ("initializing Voyetra mixer\n");
3441
3442         /* Enable SPDIF out */
3443         snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3444         snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3445 }
3446
3447 static void hercules_mixer_init (struct snd_cs46xx *chip)
3448 {
3449 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3450         unsigned int idx;
3451         int err;
3452         struct snd_card *card = chip->card;
3453 #endif
3454
3455         /* set EGPIO to default */
3456         hercules_init(chip);
3457
3458         snd_printdd ("initializing Hercules mixer\n");
3459
3460 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3461         if (chip->in_suspend)
3462                 return;
3463
3464         for (idx = 0 ; idx < ARRAY_SIZE(snd_hercules_controls); idx++) {
3465                 struct snd_kcontrol *kctl;
3466
3467                 kctl = snd_ctl_new1(&snd_hercules_controls[idx], chip);
3468                 if ((err = snd_ctl_add(card, kctl)) < 0) {
3469                         printk (KERN_ERR "cs46xx: failed to initialize Hercules mixer (%d)\n",err);
3470                         break;
3471                 }
3472         }
3473 #endif
3474 }
3475
3476
3477 #if 0
3478 /*
3479  *      Untested
3480  */
3481  
3482 static void amp_voyetra_4294(struct snd_cs46xx *chip, int change)
3483 {
3484         chip->amplifier += change;
3485
3486         if (chip->amplifier) {
3487                 /* Switch the GPIO pins 7 and 8 to open drain */
3488                 snd_cs46xx_codec_write(chip, 0x4C,
3489                                        snd_cs46xx_codec_read(chip, 0x4C) & 0xFE7F);
3490                 snd_cs46xx_codec_write(chip, 0x4E,
3491                                        snd_cs46xx_codec_read(chip, 0x4E) | 0x0180);
3492                 /* Now wake the AMP (this might be backwards) */
3493                 snd_cs46xx_codec_write(chip, 0x54,
3494                                        snd_cs46xx_codec_read(chip, 0x54) & ~0x0180);
3495         } else {
3496                 snd_cs46xx_codec_write(chip, 0x54,
3497                                        snd_cs46xx_codec_read(chip, 0x54) | 0x0180);
3498         }
3499 }
3500 #endif
3501
3502
3503 /*
3504  *      Handle the CLKRUN on a thinkpad. We must disable CLKRUN support
3505  *      whenever we need to beat on the chip.
3506  *
3507  *      The original idea and code for this hack comes from David Kaiser at
3508  *      Linuxcare. Perhaps one day Crystal will document their chips well
3509  *      enough to make them useful.
3510  */
3511  
3512 static void clkrun_hack(struct snd_cs46xx *chip, int change)
3513 {
3514         u16 control, nval;
3515         
3516         if (!chip->acpi_port)
3517                 return;
3518
3519         chip->amplifier += change;
3520         
3521         /* Read ACPI port */    
3522         nval = control = inw(chip->acpi_port + 0x10);
3523
3524         /* Flip CLKRUN off while running */
3525         if (! chip->amplifier)
3526                 nval |= 0x2000;
3527         else
3528                 nval &= ~0x2000;
3529         if (nval != control)
3530                 outw(nval, chip->acpi_port + 0x10);
3531 }
3532
3533         
3534 /*
3535  * detect intel piix4
3536  */
3537 static void clkrun_init(struct snd_cs46xx *chip)
3538 {
3539         struct pci_dev *pdev;
3540         u8 pp;
3541
3542         chip->acpi_port = 0;
3543         
3544         pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
3545                 PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3546         if (pdev == NULL)
3547                 return;         /* Not a thinkpad thats for sure */
3548
3549         /* Find the control port */             
3550         pci_read_config_byte(pdev, 0x41, &pp);
3551         chip->acpi_port = pp << 8;
3552         pci_dev_put(pdev);
3553 }
3554
3555
3556 /*
3557  * Card subid table
3558  */
3559  
3560 struct cs_card_type
3561 {
3562         u16 vendor;
3563         u16 id;
3564         char *name;
3565         void (*init)(struct snd_cs46xx *);
3566         void (*amp)(struct snd_cs46xx *, int);
3567         void (*active)(struct snd_cs46xx *, int);
3568         void (*mixer_init)(struct snd_cs46xx *);
3569 };
3570
3571 static struct cs_card_type __devinitdata cards[] = {
3572         {
3573                 .vendor = 0x1489,
3574                 .id = 0x7001,
3575                 .name = "Genius Soundmaker 128 value",
3576                 /* nothing special */
3577         },
3578         {
3579                 .vendor = 0x5053,
3580                 .id = 0x3357,
3581                 .name = "Voyetra",
3582                 .amp = amp_voyetra,
3583                 .mixer_init = voyetra_mixer_init,
3584         },
3585         {
3586                 .vendor = 0x1071,
3587                 .id = 0x6003,
3588                 .name = "Mitac MI6020/21",
3589                 .amp = amp_voyetra,
3590         },
3591         {
3592                 .vendor = 0x14AF,
3593                 .id = 0x0050,
3594                 .name = "Hercules Game Theatre XP",
3595                 .amp = amp_hercules,
3596                 .mixer_init = hercules_mixer_init,
3597         },
3598         {
3599                 .vendor = 0x1681,
3600                 .id = 0x0050,
3601                 .name = "Hercules Game Theatre XP",
3602                 .amp = amp_hercules,
3603                 .mixer_init = hercules_mixer_init,
3604         },
3605         {
3606                 .vendor = 0x1681,
3607                 .id = 0x0051,
3608                 .name = "Hercules Game Theatre XP",
3609                 .amp = amp_hercules,
3610                 .mixer_init = hercules_mixer_init,
3611
3612         },
3613         {
3614                 .vendor = 0x1681,
3615                 .id = 0x0052,
3616                 .name = "Hercules Game Theatre XP",
3617                 .amp = amp_hercules,
3618                 .mixer_init = hercules_mixer_init,
3619         },
3620         {
3621                 .vendor = 0x1681,
3622                 .id = 0x0053,
3623                 .name = "Hercules Game Theatre XP",
3624                 .amp = amp_hercules,
3625                 .mixer_init = hercules_mixer_init,
3626         },
3627         {
3628                 .vendor = 0x1681,
3629                 .id = 0x0054,
3630                 .name = "Hercules Game Theatre XP",
3631                 .amp = amp_hercules,
3632                 .mixer_init = hercules_mixer_init,
3633         },
3634         /* Teratec */
3635         {
3636                 .vendor = 0x153b,
3637                 .id = 0x1136,
3638                 .name = "Terratec SiXPack 5.1",
3639         },
3640         /* Not sure if the 570 needs the clkrun hack */
3641         {
3642                 .vendor = PCI_VENDOR_ID_IBM,
3643                 .id = 0x0132,
3644                 .name = "Thinkpad 570",
3645                 .init = clkrun_init,
3646                 .active = clkrun_hack,
3647         },
3648         {
3649                 .vendor = PCI_VENDOR_ID_IBM,
3650                 .id = 0x0153,
3651                 .name = "Thinkpad 600X/A20/T20",
3652                 .init = clkrun_init,
3653                 .active = clkrun_hack,
3654         },
3655         {
3656                 .vendor = PCI_VENDOR_ID_IBM,
3657                 .id = 0x1010,
3658                 .name = "Thinkpad 600E (unsupported)",
3659         },
3660         {} /* terminator */
3661 };
3662
3663
3664 /*
3665  * APM support
3666  */
3667 #ifdef CONFIG_PM
3668 int snd_cs46xx_suspend(struct pci_dev *pci, pm_message_t state)
3669 {
3670         struct snd_card *card = pci_get_drvdata(pci);
3671         struct snd_cs46xx *chip = card->private_data;
3672         int amp_saved;
3673
3674         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
3675         chip->in_suspend = 1;
3676         snd_pcm_suspend_all(chip->pcm);
3677         // chip->ac97_powerdown = snd_cs46xx_codec_read(chip, AC97_POWER_CONTROL);
3678         // chip->ac97_general_purpose = snd_cs46xx_codec_read(chip, BA0_AC97_GENERAL_PURPOSE);
3679
3680         snd_ac97_suspend(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3681         snd_ac97_suspend(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3682
3683         amp_saved = chip->amplifier;
3684         /* turn off amp */
3685         chip->amplifier_ctrl(chip, -chip->amplifier);
3686         snd_cs46xx_hw_stop(chip);
3687         /* disable CLKRUN */
3688         chip->active_ctrl(chip, -chip->amplifier);
3689         chip->amplifier = amp_saved; /* restore the status */
3690
3691         pci_disable_device(pci);
3692         pci_save_state(pci);
3693         pci_set_power_state(pci, pci_choose_state(pci, state));
3694         return 0;
3695 }
3696
3697 int snd_cs46xx_resume(struct pci_dev *pci)
3698 {
3699         struct snd_card *card = pci_get_drvdata(pci);
3700         struct snd_cs46xx *chip = card->private_data;
3701         int amp_saved;
3702
3703         pci_set_power_state(pci, PCI_D0);
3704         pci_restore_state(pci);
3705         if (pci_enable_device(pci) < 0) {
3706                 printk(KERN_ERR "cs46xx: pci_enable_device failed, "
3707                        "disabling device\n");
3708                 snd_card_disconnect(card);
3709                 return -EIO;
3710         }
3711         pci_set_master(pci);
3712
3713         amp_saved = chip->amplifier;
3714         chip->amplifier = 0;
3715         chip->active_ctrl(chip, 1); /* force to on */
3716
3717         snd_cs46xx_chip_init(chip);
3718
3719 #if 0
3720         snd_cs46xx_codec_write(chip, BA0_AC97_GENERAL_PURPOSE, 
3721                                chip->ac97_general_purpose);
3722         snd_cs46xx_codec_write(chip, AC97_POWER_CONTROL, 
3723                                chip->ac97_powerdown);
3724         mdelay(10);
3725         snd_cs46xx_codec_write(chip, BA0_AC97_POWERDOWN,
3726                                chip->ac97_powerdown);
3727         mdelay(5);
3728 #endif
3729
3730         snd_ac97_resume(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3731         snd_ac97_resume(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3732
3733         if (amp_saved)
3734                 chip->amplifier_ctrl(chip, 1); /* turn amp on */
3735         else
3736                 chip->active_ctrl(chip, -1); /* disable CLKRUN */
3737         chip->amplifier = amp_saved;
3738         chip->in_suspend = 0;
3739         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
3740         return 0;
3741 }
3742 #endif /* CONFIG_PM */
3743
3744
3745 /*
3746  */
3747
3748 int __devinit snd_cs46xx_create(struct snd_card *card,
3749                       struct pci_dev * pci,
3750                       int external_amp, int thinkpad,
3751                       struct snd_cs46xx ** rchip)
3752 {
3753         struct snd_cs46xx *chip;
3754         int err, idx;
3755         struct snd_cs46xx_region *region;
3756         struct cs_card_type *cp;
3757         u16 ss_card, ss_vendor;
3758         static struct snd_device_ops ops = {
3759                 .dev_free =     snd_cs46xx_dev_free,
3760         };
3761         
3762         *rchip = NULL;
3763
3764         /* enable PCI device */
3765         if ((err = pci_enable_device(pci)) < 0)
3766                 return err;
3767
3768         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
3769         if (chip == NULL) {
3770                 pci_disable_device(pci);
3771                 return -ENOMEM;
3772         }
3773         spin_lock_init(&chip->reg_lock);
3774 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3775         mutex_init(&chip->spos_mutex);
3776 #endif
3777         chip->card = card;
3778         chip->pci = pci;
3779         chip->irq = -1;
3780         chip->ba0_addr = pci_resource_start(pci, 0);
3781         chip->ba1_addr = pci_resource_start(pci, 1);
3782         if (chip->ba0_addr == 0 || chip->ba0_addr == (unsigned long)~0 ||
3783             chip->ba1_addr == 0 || chip->ba1_addr == (unsigned long)~0) {
3784                 snd_printk(KERN_ERR "wrong address(es) - ba0 = 0x%lx, ba1 = 0x%lx\n",
3785                            chip->ba0_addr, chip->ba1_addr);
3786                 snd_cs46xx_free(chip);
3787                 return -ENOMEM;
3788         }
3789
3790         region = &chip->region.name.ba0;
3791         strcpy(region->name, "CS46xx_BA0");
3792         region->base = chip->ba0_addr;
3793         region->size = CS46XX_BA0_SIZE;
3794
3795         region = &chip->region.name.data0;
3796         strcpy(region->name, "CS46xx_BA1_data0");
3797         region->base = chip->ba1_addr + BA1_SP_DMEM0;
3798         region->size = CS46XX_BA1_DATA0_SIZE;
3799
3800         region = &chip->region.name.data1;
3801         strcpy(region->name, "CS46xx_BA1_data1");
3802         region->base = chip->ba1_addr + BA1_SP_DMEM1;
3803         region->size = CS46XX_BA1_DATA1_SIZE;
3804
3805         region = &chip->region.name.pmem;
3806         strcpy(region->name, "CS46xx_BA1_pmem");
3807         region->base = chip->ba1_addr + BA1_SP_PMEM;
3808         region->size = CS46XX_BA1_PRG_SIZE;
3809
3810         region = &chip->region.name.reg;
3811         strcpy(region->name, "CS46xx_BA1_reg");
3812         region->base = chip->ba1_addr + BA1_SP_REG;
3813         region->size = CS46XX_BA1_REG_SIZE;
3814
3815         /* set up amp and clkrun hack */
3816         pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &ss_vendor);
3817         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &ss_card);
3818
3819         for (cp = &cards[0]; cp->name; cp++) {
3820                 if (cp->vendor == ss_vendor && cp->id == ss_card) {
3821                         snd_printdd ("hack for %s enabled\n", cp->name);
3822
3823                         chip->amplifier_ctrl = cp->amp;
3824                         chip->active_ctrl = cp->active;
3825                         chip->mixer_init = cp->mixer_init;
3826
3827                         if (cp->init)
3828                                 cp->init(chip);
3829                         break;
3830                 }
3831         }
3832
3833         if (external_amp) {
3834                 snd_printk(KERN_INFO "Crystal EAPD support forced on.\n");
3835                 chip->amplifier_ctrl = amp_voyetra;
3836         }
3837
3838         if (thinkpad) {
3839                 snd_printk(KERN_INFO "Activating CLKRUN hack for Thinkpad.\n");
3840                 chip->active_ctrl = clkrun_hack;
3841                 clkrun_init(chip);
3842         }
3843         
3844         if (chip->amplifier_ctrl == NULL)
3845                 chip->amplifier_ctrl = amp_none;
3846         if (chip->active_ctrl == NULL)
3847                 chip->active_ctrl = amp_none;
3848
3849         chip->active_ctrl(chip, 1); /* enable CLKRUN */
3850
3851         pci_set_master(pci);
3852
3853         for (idx = 0; idx < 5; idx++) {
3854                 region = &chip->region.idx[idx];
3855                 if ((region->resource = request_mem_region(region->base, region->size,
3856                                                            region->name)) == NULL) {
3857                         snd_printk(KERN_ERR "unable to request memory region 0x%lx-0x%lx\n",
3858                                    region->base, region->base + region->size - 1);
3859                         snd_cs46xx_free(chip);
3860                         return -EBUSY;
3861                 }
3862                 region->remap_addr = ioremap_nocache(region->base, region->size);
3863                 if (region->remap_addr == NULL) {
3864                         snd_printk(KERN_ERR "%s ioremap problem\n", region->name);
3865                         snd_cs46xx_free(chip);
3866                         return -ENOMEM;
3867                 }
3868         }
3869
3870         if (request_irq(pci->irq, snd_cs46xx_interrupt, IRQF_DISABLED|IRQF_SHARED,
3871                         "CS46XX", chip)) {
3872                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
3873                 snd_cs46xx_free(chip);
3874                 return -EBUSY;
3875         }
3876         chip->irq = pci->irq;
3877
3878 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3879         chip->dsp_spos_instance = cs46xx_dsp_spos_create(chip);
3880         if (chip->dsp_spos_instance == NULL) {
3881                 snd_cs46xx_free(chip);
3882                 return -ENOMEM;
3883         }
3884 #endif
3885
3886         err = snd_cs46xx_chip_init(chip);
3887         if (err < 0) {
3888                 snd_cs46xx_free(chip);
3889                 return err;
3890         }
3891
3892         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
3893                 snd_cs46xx_free(chip);
3894                 return err;
3895         }
3896         
3897         snd_cs46xx_proc_init(card, chip);
3898
3899         chip->active_ctrl(chip, -1); /* disable CLKRUN */
3900
3901         snd_card_set_dev(card, &pci->dev);
3902
3903         *rchip = chip;
3904         return 0;
3905 }