[ALSA] Remove sound/driver.h
[linux-2.6.git] / sound / pci / cs46xx / cs46xx_lib.c
1 /*
2  *  Copyright (c) by Jaroslav Kysela <perex@perex.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 control.
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 <linux/delay.h>
49 #include <linux/pci.h>
50 #include <linux/pm.h>
51 #include <linux/init.h>
52 #include <linux/interrupt.h>
53 #include <linux/slab.h>
54 #include <linux/gameport.h>
55 #include <linux/mutex.h>
56
57
58 #include <sound/core.h>
59 #include <sound/control.h>
60 #include <sound/info.h>
61 #include <sound/pcm.h>
62 #include <sound/pcm_params.h>
63 #include <sound/cs46xx.h>
64
65 #include <asm/io.h>
66
67 #include "cs46xx_lib.h"
68 #include "dsp_spos.h"
69
70 static void amp_voyetra(struct snd_cs46xx *chip, int change);
71
72 #ifdef CONFIG_SND_CS46XX_NEW_DSP
73 static struct snd_pcm_ops snd_cs46xx_playback_rear_ops;
74 static struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops;
75 static struct snd_pcm_ops snd_cs46xx_playback_clfe_ops;
76 static struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops;
77 static struct snd_pcm_ops snd_cs46xx_playback_iec958_ops;
78 static struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops;
79 #endif
80
81 static struct snd_pcm_ops snd_cs46xx_playback_ops;
82 static struct snd_pcm_ops snd_cs46xx_playback_indirect_ops;
83 static struct snd_pcm_ops snd_cs46xx_capture_ops;
84 static struct snd_pcm_ops snd_cs46xx_capture_indirect_ops;
85
86 static unsigned short snd_cs46xx_codec_read(struct snd_cs46xx *chip,
87                                             unsigned short reg,
88                                             int codec_index)
89 {
90         int count;
91         unsigned short result,tmp;
92         u32 offset = 0;
93         snd_assert ( (codec_index == CS46XX_PRIMARY_CODEC_INDEX) ||
94                      (codec_index == CS46XX_SECONDARY_CODEC_INDEX),
95                      return -EINVAL);
96
97         chip->active_ctrl(chip, 1);
98
99         if (codec_index == CS46XX_SECONDARY_CODEC_INDEX)
100                 offset = CS46XX_SECONDARY_CODEC_OFFSET;
101
102         /*
103          *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
104          *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97 
105          *  3. Write ACCTL = Control Register = 460h for initiating the write7---55
106          *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h
107          *  5. if DCV not cleared, break and return error
108          *  6. Read ACSTS = Status Register = 464h, check VSTS bit
109          */
110
111         snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
112
113         tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL);
114         if ((tmp & ACCTL_VFRM) == 0) {
115                 snd_printk(KERN_WARNING  "cs46xx: ACCTL_VFRM not set 0x%x\n",tmp);
116                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, (tmp & (~ACCTL_ESYN)) | ACCTL_VFRM );
117                 msleep(50);
118                 tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL + offset);
119                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, tmp | ACCTL_ESYN | ACCTL_VFRM );
120
121         }
122
123         /*
124          *  Setup the AC97 control registers on the CS461x to send the
125          *  appropriate command to the AC97 to perform the read.
126          *  ACCAD = Command Address Register = 46Ch
127          *  ACCDA = Command Data Register = 470h
128          *  ACCTL = Control Register = 460h
129          *  set DCV - will clear when process completed
130          *  set CRW - Read command
131          *  set VFRM - valid frame enabled
132          *  set ESYN - ASYNC generation enabled
133          *  set RSTN - ARST# inactive, AC97 codec not reset
134          */
135
136         snd_cs46xx_pokeBA0(chip, BA0_ACCAD, reg);
137         snd_cs46xx_pokeBA0(chip, BA0_ACCDA, 0);
138         if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
139                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL,/* clear ACCTL_DCV */ ACCTL_CRW | 
140                                    ACCTL_VFRM | ACCTL_ESYN |
141                                    ACCTL_RSTN);
142                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_CRW |
143                                    ACCTL_VFRM | ACCTL_ESYN |
144                                    ACCTL_RSTN);
145         } else {
146                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
147                                    ACCTL_CRW | ACCTL_VFRM | ACCTL_ESYN |
148                                    ACCTL_RSTN);
149         }
150
151         /*
152          *  Wait for the read to occur.
153          */
154         for (count = 0; count < 1000; count++) {
155                 /*
156                  *  First, we want to wait for a short time.
157                  */
158                 udelay(10);
159                 /*
160                  *  Now, check to see if the read has completed.
161                  *  ACCTL = 460h, DCV should be reset by now and 460h = 17h
162                  */
163                 if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV))
164                         goto ok1;
165         }
166
167         snd_printk(KERN_ERR "AC'97 read problem (ACCTL_DCV), reg = 0x%x\n", reg);
168         result = 0xffff;
169         goto end;
170         
171  ok1:
172         /*
173          *  Wait for the valid status bit to go active.
174          */
175         for (count = 0; count < 100; count++) {
176                 /*
177                  *  Read the AC97 status register.
178                  *  ACSTS = Status Register = 464h
179                  *  VSTS - Valid Status
180                  */
181                 if (snd_cs46xx_peekBA0(chip, BA0_ACSTS + offset) & ACSTS_VSTS)
182                         goto ok2;
183                 udelay(10);
184         }
185         
186         snd_printk(KERN_ERR "AC'97 read problem (ACSTS_VSTS), codec_index %d, reg = 0x%x\n", codec_index, reg);
187         result = 0xffff;
188         goto end;
189
190  ok2:
191         /*
192          *  Read the data returned from the AC97 register.
193          *  ACSDA = Status Data Register = 474h
194          */
195 #if 0
196         printk("e) reg = 0x%x, val = 0x%x, BA0_ACCAD = 0x%x\n", reg,
197                         snd_cs46xx_peekBA0(chip, BA0_ACSDA),
198                         snd_cs46xx_peekBA0(chip, BA0_ACCAD));
199 #endif
200
201         //snd_cs46xx_peekBA0(chip, BA0_ACCAD);
202         result = snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
203  end:
204         chip->active_ctrl(chip, -1);
205         return result;
206 }
207
208 static unsigned short snd_cs46xx_ac97_read(struct snd_ac97 * ac97,
209                                             unsigned short reg)
210 {
211         struct snd_cs46xx *chip = ac97->private_data;
212         unsigned short val;
213         int codec_index = ac97->num;
214
215         snd_assert(codec_index == CS46XX_PRIMARY_CODEC_INDEX ||
216                    codec_index == CS46XX_SECONDARY_CODEC_INDEX,
217                    return 0xffff);
218
219         val = snd_cs46xx_codec_read(chip, reg, codec_index);
220
221         return val;
222 }
223
224
225 static void snd_cs46xx_codec_write(struct snd_cs46xx *chip,
226                                    unsigned short reg,
227                                    unsigned short val,
228                                    int codec_index)
229 {
230         int count;
231
232         snd_assert ((codec_index == CS46XX_PRIMARY_CODEC_INDEX) ||
233                     (codec_index == CS46XX_SECONDARY_CODEC_INDEX),
234                     return);
235
236         chip->active_ctrl(chip, 1);
237
238         /*
239          *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
240          *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97
241          *  3. Write ACCTL = Control Register = 460h for initiating the write
242          *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h
243          *  5. if DCV not cleared, break and return error
244          */
245
246         /*
247          *  Setup the AC97 control registers on the CS461x to send the
248          *  appropriate command to the AC97 to perform the read.
249          *  ACCAD = Command Address Register = 46Ch
250          *  ACCDA = Command Data Register = 470h
251          *  ACCTL = Control Register = 460h
252          *  set DCV - will clear when process completed
253          *  reset CRW - Write command
254          *  set VFRM - valid frame enabled
255          *  set ESYN - ASYNC generation enabled
256          *  set RSTN - ARST# inactive, AC97 codec not reset
257          */
258         snd_cs46xx_pokeBA0(chip, BA0_ACCAD , reg);
259         snd_cs46xx_pokeBA0(chip, BA0_ACCDA , val);
260         snd_cs46xx_peekBA0(chip, BA0_ACCTL);
261
262         if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
263                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, /* clear ACCTL_DCV */ ACCTL_VFRM |
264                                    ACCTL_ESYN | ACCTL_RSTN);
265                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_VFRM |
266                                    ACCTL_ESYN | ACCTL_RSTN);
267         } else {
268                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
269                                    ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
270         }
271
272         for (count = 0; count < 4000; count++) {
273                 /*
274                  *  First, we want to wait for a short time.
275                  */
276                 udelay(10);
277                 /*
278                  *  Now, check to see if the write has completed.
279                  *  ACCTL = 460h, DCV should be reset by now and 460h = 07h
280                  */
281                 if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV)) {
282                         goto end;
283                 }
284         }
285         snd_printk(KERN_ERR "AC'97 write problem, codec_index = %d, reg = 0x%x, val = 0x%x\n", codec_index, reg, val);
286  end:
287         chip->active_ctrl(chip, -1);
288 }
289
290 static void snd_cs46xx_ac97_write(struct snd_ac97 *ac97,
291                                    unsigned short reg,
292                                    unsigned short val)
293 {
294         struct snd_cs46xx *chip = ac97->private_data;
295         int codec_index = ac97->num;
296
297         snd_assert(codec_index == CS46XX_PRIMARY_CODEC_INDEX ||
298                    codec_index == CS46XX_SECONDARY_CODEC_INDEX,
299                    return);
300
301         snd_cs46xx_codec_write(chip, reg, val, codec_index);
302 }
303
304
305 /*
306  *  Chip initialization
307  */
308
309 int snd_cs46xx_download(struct snd_cs46xx *chip,
310                         u32 *src,
311                         unsigned long offset,
312                         unsigned long len)
313 {
314         void __iomem *dst;
315         unsigned int bank = offset >> 16;
316         offset = offset & 0xffff;
317
318         snd_assert(!(offset & 3) && !(len & 3), return -EINVAL);
319         dst = chip->region.idx[bank+1].remap_addr + offset;
320         len /= sizeof(u32);
321
322         /* writel already converts 32-bit value to right endianess */
323         while (len-- > 0) {
324                 writel(*src++, dst);
325                 dst += sizeof(u32);
326         }
327         return 0;
328 }
329
330 #ifdef CONFIG_SND_CS46XX_NEW_DSP
331
332 #include "imgs/cwc4630.h"
333 #include "imgs/cwcasync.h"
334 #include "imgs/cwcsnoop.h"
335 #include "imgs/cwcbinhack.h"
336 #include "imgs/cwcdma.h"
337
338 int snd_cs46xx_clear_BA1(struct snd_cs46xx *chip,
339                          unsigned long offset,
340                          unsigned long len) 
341 {
342         void __iomem *dst;
343         unsigned int bank = offset >> 16;
344         offset = offset & 0xffff;
345
346         snd_assert(!(offset & 3) && !(len & 3), return -EINVAL);
347         dst = chip->region.idx[bank+1].remap_addr + offset;
348         len /= sizeof(u32);
349
350         /* writel already converts 32-bit value to right endianess */
351         while (len-- > 0) {
352                 writel(0, dst);
353                 dst += sizeof(u32);
354         }
355         return 0;
356 }
357
358 #else /* old DSP image */
359
360 #include "cs46xx_image.h"
361
362 int snd_cs46xx_download_image(struct snd_cs46xx *chip)
363 {
364         int idx, err;
365         unsigned long offset = 0;
366
367         for (idx = 0; idx < BA1_MEMORY_COUNT; idx++) {
368                 if ((err = snd_cs46xx_download(chip,
369                                                &BA1Struct.map[offset],
370                                                BA1Struct.memory[idx].offset,
371                                                BA1Struct.memory[idx].size)) < 0)
372                         return err;
373                 offset += BA1Struct.memory[idx].size >> 2;
374         }       
375         return 0;
376 }
377 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
378
379 /*
380  *  Chip reset
381  */
382
383 static void snd_cs46xx_reset(struct snd_cs46xx *chip)
384 {
385         int idx;
386
387         /*
388          *  Write the reset bit of the SP control register.
389          */
390         snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RSTSP);
391
392         /*
393          *  Write the control register.
394          */
395         snd_cs46xx_poke(chip, BA1_SPCR, SPCR_DRQEN);
396
397         /*
398          *  Clear the trap registers.
399          */
400         for (idx = 0; idx < 8; idx++) {
401                 snd_cs46xx_poke(chip, BA1_DREG, DREG_REGID_TRAP_SELECT + idx);
402                 snd_cs46xx_poke(chip, BA1_TWPR, 0xFFFF);
403         }
404         snd_cs46xx_poke(chip, BA1_DREG, 0);
405
406         /*
407          *  Set the frame timer to reflect the number of cycles per frame.
408          */
409         snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
410 }
411
412 static int cs46xx_wait_for_fifo(struct snd_cs46xx * chip,int retry_timeout) 
413 {
414         u32 i, status = 0;
415         /*
416          * Make sure the previous FIFO write operation has completed.
417          */
418         for(i = 0; i < 50; i++){
419                 status = snd_cs46xx_peekBA0(chip, BA0_SERBST);
420     
421                 if( !(status & SERBST_WBSY) )
422                         break;
423
424                 mdelay(retry_timeout);
425         }
426   
427         if(status & SERBST_WBSY) {
428                 snd_printk( KERN_ERR "cs46xx: failure waiting for FIFO command to complete\n");
429
430                 return -EINVAL;
431         }
432
433         return 0;
434 }
435
436 static void snd_cs46xx_clear_serial_FIFOs(struct snd_cs46xx *chip)
437 {
438         int idx, powerdown = 0;
439         unsigned int tmp;
440
441         /*
442          *  See if the devices are powered down.  If so, we must power them up first
443          *  or they will not respond.
444          */
445         tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
446         if (!(tmp & CLKCR1_SWCE)) {
447                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
448                 powerdown = 1;
449         }
450
451         /*
452          *  We want to clear out the serial port FIFOs so we don't end up playing
453          *  whatever random garbage happens to be in them.  We fill the sample FIFOS
454          *  with zero (silence).
455          */
456         snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0);
457
458         /*
459          *  Fill all 256 sample FIFO locations.
460          */
461         for (idx = 0; idx < 0xFF; idx++) {
462                 /*
463                  *  Make sure the previous FIFO write operation has completed.
464                  */
465                 if (cs46xx_wait_for_fifo(chip,1)) {
466                         snd_printdd ("failed waiting for FIFO at addr (%02X)\n",idx);
467
468                         if (powerdown)
469                                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
470           
471                         break;
472                 }
473                 /*
474                  *  Write the serial port FIFO index.
475                  */
476                 snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
477                 /*
478                  *  Tell the serial port to load the new value into the FIFO location.
479                  */
480                 snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
481         }
482         /*
483          *  Now, if we powered up the devices, then power them back down again.
484          *  This is kinda ugly, but should never happen.
485          */
486         if (powerdown)
487                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
488 }
489
490 static void snd_cs46xx_proc_start(struct snd_cs46xx *chip)
491 {
492         int cnt;
493
494         /*
495          *  Set the frame timer to reflect the number of cycles per frame.
496          */
497         snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
498         /*
499          *  Turn on the run, run at frame, and DMA enable bits in the local copy of
500          *  the SP control register.
501          */
502         snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
503         /*
504          *  Wait until the run at frame bit resets itself in the SP control
505          *  register.
506          */
507         for (cnt = 0; cnt < 25; cnt++) {
508                 udelay(50);
509                 if (!(snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR))
510                         break;
511         }
512
513         if (snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR)
514                 snd_printk(KERN_ERR "SPCR_RUNFR never reset\n");
515 }
516
517 static void snd_cs46xx_proc_stop(struct snd_cs46xx *chip)
518 {
519         /*
520          *  Turn off the run, run at frame, and DMA enable bits in the local copy of
521          *  the SP control register.
522          */
523         snd_cs46xx_poke(chip, BA1_SPCR, 0);
524 }
525
526 /*
527  *  Sample rate routines
528  */
529
530 #define GOF_PER_SEC 200
531
532 static void snd_cs46xx_set_play_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
533 {
534         unsigned long flags;
535         unsigned int tmp1, tmp2;
536         unsigned int phiIncr;
537         unsigned int correctionPerGOF, correctionPerSec;
538
539         /*
540          *  Compute the values used to drive the actual sample rate conversion.
541          *  The following formulas are being computed, using inline assembly
542          *  since we need to use 64 bit arithmetic to compute the values:
543          *
544          *  phiIncr = floor((Fs,in * 2^26) / Fs,out)
545          *  correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
546          *                                   GOF_PER_SEC)
547          *  ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
548          *                       GOF_PER_SEC * correctionPerGOF
549          *
550          *  i.e.
551          *
552          *  phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
553          *  correctionPerGOF:correctionPerSec =
554          *      dividend:remainder(ulOther / GOF_PER_SEC)
555          */
556         tmp1 = rate << 16;
557         phiIncr = tmp1 / 48000;
558         tmp1 -= phiIncr * 48000;
559         tmp1 <<= 10;
560         phiIncr <<= 10;
561         tmp2 = tmp1 / 48000;
562         phiIncr += tmp2;
563         tmp1 -= tmp2 * 48000;
564         correctionPerGOF = tmp1 / GOF_PER_SEC;
565         tmp1 -= correctionPerGOF * GOF_PER_SEC;
566         correctionPerSec = tmp1;
567
568         /*
569          *  Fill in the SampleRateConverter control block.
570          */
571         spin_lock_irqsave(&chip->reg_lock, flags);
572         snd_cs46xx_poke(chip, BA1_PSRC,
573           ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
574         snd_cs46xx_poke(chip, BA1_PPI, phiIncr);
575         spin_unlock_irqrestore(&chip->reg_lock, flags);
576 }
577
578 static void snd_cs46xx_set_capture_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
579 {
580         unsigned long flags;
581         unsigned int phiIncr, coeffIncr, tmp1, tmp2;
582         unsigned int correctionPerGOF, correctionPerSec, initialDelay;
583         unsigned int frameGroupLength, cnt;
584
585         /*
586          *  We can only decimate by up to a factor of 1/9th the hardware rate.
587          *  Correct the value if an attempt is made to stray outside that limit.
588          */
589         if ((rate * 9) < 48000)
590                 rate = 48000 / 9;
591
592         /*
593          *  We can not capture at at rate greater than the Input Rate (48000).
594          *  Return an error if an attempt is made to stray outside that limit.
595          */
596         if (rate > 48000)
597                 rate = 48000;
598
599         /*
600          *  Compute the values used to drive the actual sample rate conversion.
601          *  The following formulas are being computed, using inline assembly
602          *  since we need to use 64 bit arithmetic to compute the values:
603          *
604          *     coeffIncr = -floor((Fs,out * 2^23) / Fs,in)
605          *     phiIncr = floor((Fs,in * 2^26) / Fs,out)
606          *     correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
607          *                                GOF_PER_SEC)
608          *     correctionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
609          *                          GOF_PER_SEC * correctionPerGOF
610          *     initialDelay = ceil((24 * Fs,in) / Fs,out)
611          *
612          * i.e.
613          *
614          *     coeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in))
615          *     phiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
616          *     correctionPerGOF:correctionPerSec =
617          *          dividend:remainder(ulOther / GOF_PER_SEC)
618          *     initialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out)
619          */
620
621         tmp1 = rate << 16;
622         coeffIncr = tmp1 / 48000;
623         tmp1 -= coeffIncr * 48000;
624         tmp1 <<= 7;
625         coeffIncr <<= 7;
626         coeffIncr += tmp1 / 48000;
627         coeffIncr ^= 0xFFFFFFFF;
628         coeffIncr++;
629         tmp1 = 48000 << 16;
630         phiIncr = tmp1 / rate;
631         tmp1 -= phiIncr * rate;
632         tmp1 <<= 10;
633         phiIncr <<= 10;
634         tmp2 = tmp1 / rate;
635         phiIncr += tmp2;
636         tmp1 -= tmp2 * rate;
637         correctionPerGOF = tmp1 / GOF_PER_SEC;
638         tmp1 -= correctionPerGOF * GOF_PER_SEC;
639         correctionPerSec = tmp1;
640         initialDelay = ((48000 * 24) + rate - 1) / rate;
641
642         /*
643          *  Fill in the VariDecimate control block.
644          */
645         spin_lock_irqsave(&chip->reg_lock, flags);
646         snd_cs46xx_poke(chip, BA1_CSRC,
647                 ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
648         snd_cs46xx_poke(chip, BA1_CCI, coeffIncr);
649         snd_cs46xx_poke(chip, BA1_CD,
650                 (((BA1_VARIDEC_BUF_1 + (initialDelay << 2)) << 16) & 0xFFFF0000) | 0x80);
651         snd_cs46xx_poke(chip, BA1_CPI, phiIncr);
652         spin_unlock_irqrestore(&chip->reg_lock, flags);
653
654         /*
655          *  Figure out the frame group length for the write back task.  Basically,
656          *  this is just the factors of 24000 (2^6*3*5^3) that are not present in
657          *  the output sample rate.
658          */
659         frameGroupLength = 1;
660         for (cnt = 2; cnt <= 64; cnt *= 2) {
661                 if (((rate / cnt) * cnt) != rate)
662                         frameGroupLength *= 2;
663         }
664         if (((rate / 3) * 3) != rate) {
665                 frameGroupLength *= 3;
666         }
667         for (cnt = 5; cnt <= 125; cnt *= 5) {
668                 if (((rate / cnt) * cnt) != rate) 
669                         frameGroupLength *= 5;
670         }
671
672         /*
673          * Fill in the WriteBack control block.
674          */
675         spin_lock_irqsave(&chip->reg_lock, flags);
676         snd_cs46xx_poke(chip, BA1_CFG1, frameGroupLength);
677         snd_cs46xx_poke(chip, BA1_CFG2, (0x00800000 | frameGroupLength));
678         snd_cs46xx_poke(chip, BA1_CCST, 0x0000FFFF);
679         snd_cs46xx_poke(chip, BA1_CSPB, ((65536 * rate) / 24000));
680         snd_cs46xx_poke(chip, (BA1_CSPB + 4), 0x0000FFFF);
681         spin_unlock_irqrestore(&chip->reg_lock, flags);
682 }
683
684 /*
685  *  PCM part
686  */
687
688 static void snd_cs46xx_pb_trans_copy(struct snd_pcm_substream *substream,
689                                      struct snd_pcm_indirect *rec, size_t bytes)
690 {
691         struct snd_pcm_runtime *runtime = substream->runtime;
692         struct snd_cs46xx_pcm * cpcm = runtime->private_data;
693         memcpy(cpcm->hw_buf.area + rec->hw_data, runtime->dma_area + rec->sw_data, bytes);
694 }
695
696 static int snd_cs46xx_playback_transfer(struct snd_pcm_substream *substream)
697 {
698         struct snd_pcm_runtime *runtime = substream->runtime;
699         struct snd_cs46xx_pcm * cpcm = runtime->private_data;
700         snd_pcm_indirect_playback_transfer(substream, &cpcm->pcm_rec, snd_cs46xx_pb_trans_copy);
701         return 0;
702 }
703
704 static void snd_cs46xx_cp_trans_copy(struct snd_pcm_substream *substream,
705                                      struct snd_pcm_indirect *rec, size_t bytes)
706 {
707         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
708         struct snd_pcm_runtime *runtime = substream->runtime;
709         memcpy(runtime->dma_area + rec->sw_data,
710                chip->capt.hw_buf.area + rec->hw_data, bytes);
711 }
712
713 static int snd_cs46xx_capture_transfer(struct snd_pcm_substream *substream)
714 {
715         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
716         snd_pcm_indirect_capture_transfer(substream, &chip->capt.pcm_rec, snd_cs46xx_cp_trans_copy);
717         return 0;
718 }
719
720 static snd_pcm_uframes_t snd_cs46xx_playback_direct_pointer(struct snd_pcm_substream *substream)
721 {
722         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
723         size_t ptr;
724         struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
725         snd_assert (cpcm->pcm_channel,return -ENXIO);
726
727 #ifdef CONFIG_SND_CS46XX_NEW_DSP
728         ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
729 #else
730         ptr = snd_cs46xx_peek(chip, BA1_PBA);
731 #endif
732         ptr -= cpcm->hw_buf.addr;
733         return ptr >> cpcm->shift;
734 }
735
736 static snd_pcm_uframes_t snd_cs46xx_playback_indirect_pointer(struct snd_pcm_substream *substream)
737 {
738         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
739         size_t ptr;
740         struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
741
742 #ifdef CONFIG_SND_CS46XX_NEW_DSP
743         snd_assert (cpcm->pcm_channel,return -ENXIO);
744         ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
745 #else
746         ptr = snd_cs46xx_peek(chip, BA1_PBA);
747 #endif
748         ptr -= cpcm->hw_buf.addr;
749         return snd_pcm_indirect_playback_pointer(substream, &cpcm->pcm_rec, ptr);
750 }
751
752 static snd_pcm_uframes_t snd_cs46xx_capture_direct_pointer(struct snd_pcm_substream *substream)
753 {
754         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
755         size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
756         return ptr >> chip->capt.shift;
757 }
758
759 static snd_pcm_uframes_t snd_cs46xx_capture_indirect_pointer(struct snd_pcm_substream *substream)
760 {
761         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
762         size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
763         return snd_pcm_indirect_capture_pointer(substream, &chip->capt.pcm_rec, ptr);
764 }
765
766 static int snd_cs46xx_playback_trigger(struct snd_pcm_substream *substream,
767                                        int cmd)
768 {
769         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
770         /*struct snd_pcm_runtime *runtime = substream->runtime;*/
771         int result = 0;
772
773 #ifdef CONFIG_SND_CS46XX_NEW_DSP
774         struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
775         if (! cpcm->pcm_channel) {
776                 return -ENXIO;
777         }
778 #endif
779         switch (cmd) {
780         case SNDRV_PCM_TRIGGER_START:
781         case SNDRV_PCM_TRIGGER_RESUME:
782 #ifdef CONFIG_SND_CS46XX_NEW_DSP
783                 /* magic value to unmute PCM stream  playback volume */
784                 snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 
785                                        SCBVolumeCtrl) << 2, 0x80008000);
786
787                 if (cpcm->pcm_channel->unlinked)
788                         cs46xx_dsp_pcm_link(chip,cpcm->pcm_channel);
789
790                 if (substream->runtime->periods != CS46XX_FRAGS)
791                         snd_cs46xx_playback_transfer(substream);
792 #else
793                 spin_lock(&chip->reg_lock);
794                 if (substream->runtime->periods != CS46XX_FRAGS)
795                         snd_cs46xx_playback_transfer(substream);
796                 { unsigned int tmp;
797                 tmp = snd_cs46xx_peek(chip, BA1_PCTL);
798                 tmp &= 0x0000ffff;
799                 snd_cs46xx_poke(chip, BA1_PCTL, chip->play_ctl | tmp);
800                 }
801                 spin_unlock(&chip->reg_lock);
802 #endif
803                 break;
804         case SNDRV_PCM_TRIGGER_STOP:
805         case SNDRV_PCM_TRIGGER_SUSPEND:
806 #ifdef CONFIG_SND_CS46XX_NEW_DSP
807                 /* magic mute channel */
808                 snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 
809                                        SCBVolumeCtrl) << 2, 0xffffffff);
810
811                 if (!cpcm->pcm_channel->unlinked)
812                         cs46xx_dsp_pcm_unlink(chip,cpcm->pcm_channel);
813 #else
814                 spin_lock(&chip->reg_lock);
815                 { unsigned int tmp;
816                 tmp = snd_cs46xx_peek(chip, BA1_PCTL);
817                 tmp &= 0x0000ffff;
818                 snd_cs46xx_poke(chip, BA1_PCTL, tmp);
819                 }
820                 spin_unlock(&chip->reg_lock);
821 #endif
822                 break;
823         default:
824                 result = -EINVAL;
825                 break;
826         }
827
828         return result;
829 }
830
831 static int snd_cs46xx_capture_trigger(struct snd_pcm_substream *substream,
832                                       int cmd)
833 {
834         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
835         unsigned int tmp;
836         int result = 0;
837
838         spin_lock(&chip->reg_lock);
839         switch (cmd) {
840         case SNDRV_PCM_TRIGGER_START:
841         case SNDRV_PCM_TRIGGER_RESUME:
842                 tmp = snd_cs46xx_peek(chip, BA1_CCTL);
843                 tmp &= 0xffff0000;
844                 snd_cs46xx_poke(chip, BA1_CCTL, chip->capt.ctl | tmp);
845                 break;
846         case SNDRV_PCM_TRIGGER_STOP:
847         case SNDRV_PCM_TRIGGER_SUSPEND:
848                 tmp = snd_cs46xx_peek(chip, BA1_CCTL);
849                 tmp &= 0xffff0000;
850                 snd_cs46xx_poke(chip, BA1_CCTL, tmp);
851                 break;
852         default:
853                 result = -EINVAL;
854                 break;
855         }
856         spin_unlock(&chip->reg_lock);
857
858         return result;
859 }
860
861 #ifdef CONFIG_SND_CS46XX_NEW_DSP
862 static int _cs46xx_adjust_sample_rate (struct snd_cs46xx *chip, struct snd_cs46xx_pcm *cpcm,
863                                        int sample_rate) 
864 {
865
866         /* If PCMReaderSCB and SrcTaskSCB not created yet ... */
867         if ( cpcm->pcm_channel == NULL) {
868                 cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate, 
869                                                                    cpcm, cpcm->hw_buf.addr,cpcm->pcm_channel_id);
870                 if (cpcm->pcm_channel == NULL) {
871                         snd_printk(KERN_ERR "cs46xx: failed to create virtual PCM channel\n");
872                         return -ENOMEM;
873                 }
874                 cpcm->pcm_channel->sample_rate = sample_rate;
875         } else
876         /* if sample rate is changed */
877         if ((int)cpcm->pcm_channel->sample_rate != sample_rate) {
878                 int unlinked = cpcm->pcm_channel->unlinked;
879                 cs46xx_dsp_destroy_pcm_channel (chip,cpcm->pcm_channel);
880
881                 if ( (cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate, cpcm, 
882                                                                          cpcm->hw_buf.addr,
883                                                                          cpcm->pcm_channel_id)) == NULL) {
884                         snd_printk(KERN_ERR "cs46xx: failed to re-create virtual PCM channel\n");
885                         return -ENOMEM;
886                 }
887
888                 if (!unlinked) cs46xx_dsp_pcm_link (chip,cpcm->pcm_channel);
889                 cpcm->pcm_channel->sample_rate = sample_rate;
890         }
891
892         return 0;
893 }
894 #endif
895
896
897 static int snd_cs46xx_playback_hw_params(struct snd_pcm_substream *substream,
898                                          struct snd_pcm_hw_params *hw_params)
899 {
900         struct snd_pcm_runtime *runtime = substream->runtime;
901         struct snd_cs46xx_pcm *cpcm;
902         int err;
903 #ifdef CONFIG_SND_CS46XX_NEW_DSP
904         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
905         int sample_rate = params_rate(hw_params);
906         int period_size = params_period_bytes(hw_params);
907 #endif
908         cpcm = runtime->private_data;
909
910 #ifdef CONFIG_SND_CS46XX_NEW_DSP
911         snd_assert (sample_rate != 0, return -ENXIO);
912
913         mutex_lock(&chip->spos_mutex);
914
915         if (_cs46xx_adjust_sample_rate (chip,cpcm,sample_rate)) {
916                 mutex_unlock(&chip->spos_mutex);
917                 return -ENXIO;
918         }
919
920         snd_assert (cpcm->pcm_channel != NULL);
921         if (!cpcm->pcm_channel) {
922                 mutex_unlock(&chip->spos_mutex);
923                 return -ENXIO;
924         }
925
926
927         if (cs46xx_dsp_pcm_channel_set_period (chip,cpcm->pcm_channel,period_size)) {
928                  mutex_unlock(&chip->spos_mutex);
929                  return -EINVAL;
930          }
931
932         snd_printdd ("period_size (%d), periods (%d) buffer_size(%d)\n",
933                      period_size, params_periods(hw_params),
934                      params_buffer_bytes(hw_params));
935 #endif
936
937         if (params_periods(hw_params) == CS46XX_FRAGS) {
938                 if (runtime->dma_area != cpcm->hw_buf.area)
939                         snd_pcm_lib_free_pages(substream);
940                 runtime->dma_area = cpcm->hw_buf.area;
941                 runtime->dma_addr = cpcm->hw_buf.addr;
942                 runtime->dma_bytes = cpcm->hw_buf.bytes;
943
944
945 #ifdef CONFIG_SND_CS46XX_NEW_DSP
946                 if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
947                         substream->ops = &snd_cs46xx_playback_ops;
948                 } else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
949                         substream->ops = &snd_cs46xx_playback_rear_ops;
950                 } else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
951                         substream->ops = &snd_cs46xx_playback_clfe_ops;
952                 } else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
953                         substream->ops = &snd_cs46xx_playback_iec958_ops;
954                 } else {
955                         snd_assert(0);
956                 }
957 #else
958                 substream->ops = &snd_cs46xx_playback_ops;
959 #endif
960
961         } else {
962                 if (runtime->dma_area == cpcm->hw_buf.area) {
963                         runtime->dma_area = NULL;
964                         runtime->dma_addr = 0;
965                         runtime->dma_bytes = 0;
966                 }
967                 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) {
968 #ifdef CONFIG_SND_CS46XX_NEW_DSP
969                         mutex_unlock(&chip->spos_mutex);
970 #endif
971                         return err;
972                 }
973
974 #ifdef CONFIG_SND_CS46XX_NEW_DSP
975                 if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
976                         substream->ops = &snd_cs46xx_playback_indirect_ops;
977                 } else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
978                         substream->ops = &snd_cs46xx_playback_indirect_rear_ops;
979                 } else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
980                         substream->ops = &snd_cs46xx_playback_indirect_clfe_ops;
981                 } else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
982                         substream->ops = &snd_cs46xx_playback_indirect_iec958_ops;
983                 } else {
984                         snd_assert(0);
985                 }
986 #else
987                 substream->ops = &snd_cs46xx_playback_indirect_ops;
988 #endif
989
990         }
991
992 #ifdef CONFIG_SND_CS46XX_NEW_DSP
993         mutex_unlock(&chip->spos_mutex);
994 #endif
995
996         return 0;
997 }
998
999 static int snd_cs46xx_playback_hw_free(struct snd_pcm_substream *substream)
1000 {
1001         /*struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);*/
1002         struct snd_pcm_runtime *runtime = substream->runtime;
1003         struct snd_cs46xx_pcm *cpcm;
1004
1005         cpcm = runtime->private_data;
1006
1007         /* if play_back open fails, then this function
1008            is called and cpcm can actually be NULL here */
1009         if (!cpcm) return -ENXIO;
1010
1011         if (runtime->dma_area != cpcm->hw_buf.area)
1012                 snd_pcm_lib_free_pages(substream);
1013     
1014         runtime->dma_area = NULL;
1015         runtime->dma_addr = 0;
1016         runtime->dma_bytes = 0;
1017
1018         return 0;
1019 }
1020
1021 static int snd_cs46xx_playback_prepare(struct snd_pcm_substream *substream)
1022 {
1023         unsigned int tmp;
1024         unsigned int pfie;
1025         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1026         struct snd_pcm_runtime *runtime = substream->runtime;
1027         struct snd_cs46xx_pcm *cpcm;
1028
1029         cpcm = runtime->private_data;
1030
1031 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1032     snd_assert (cpcm->pcm_channel != NULL, return -ENXIO);
1033
1034         pfie = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2 );
1035         pfie &= ~0x0000f03f;
1036 #else
1037         /* old dsp */
1038         pfie = snd_cs46xx_peek(chip, BA1_PFIE);
1039         pfie &= ~0x0000f03f;
1040 #endif
1041
1042         cpcm->shift = 2;
1043         /* if to convert from stereo to mono */
1044         if (runtime->channels == 1) {
1045                 cpcm->shift--;
1046                 pfie |= 0x00002000;
1047         }
1048         /* if to convert from 8 bit to 16 bit */
1049         if (snd_pcm_format_width(runtime->format) == 8) {
1050                 cpcm->shift--;
1051                 pfie |= 0x00001000;
1052         }
1053         /* if to convert to unsigned */
1054         if (snd_pcm_format_unsigned(runtime->format))
1055                 pfie |= 0x00008000;
1056
1057         /* Never convert byte order when sample stream is 8 bit */
1058         if (snd_pcm_format_width(runtime->format) != 8) {
1059                 /* convert from big endian to little endian */
1060                 if (snd_pcm_format_big_endian(runtime->format))
1061                         pfie |= 0x00004000;
1062         }
1063         
1064         memset(&cpcm->pcm_rec, 0, sizeof(cpcm->pcm_rec));
1065         cpcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1066         cpcm->pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << cpcm->shift;
1067
1068 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1069
1070         tmp = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2);
1071         tmp &= ~0x000003ff;
1072         tmp |= (4 << cpcm->shift) - 1;
1073         /* playback transaction count register */
1074         snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2, tmp);
1075
1076         /* playback format && interrupt enable */
1077         snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2, pfie | cpcm->pcm_channel->pcm_slot);
1078 #else
1079         snd_cs46xx_poke(chip, BA1_PBA, cpcm->hw_buf.addr);
1080         tmp = snd_cs46xx_peek(chip, BA1_PDTC);
1081         tmp &= ~0x000003ff;
1082         tmp |= (4 << cpcm->shift) - 1;
1083         snd_cs46xx_poke(chip, BA1_PDTC, tmp);
1084         snd_cs46xx_poke(chip, BA1_PFIE, pfie);
1085         snd_cs46xx_set_play_sample_rate(chip, runtime->rate);
1086 #endif
1087
1088         return 0;
1089 }
1090
1091 static int snd_cs46xx_capture_hw_params(struct snd_pcm_substream *substream,
1092                                         struct snd_pcm_hw_params *hw_params)
1093 {
1094         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1095         struct snd_pcm_runtime *runtime = substream->runtime;
1096         int err;
1097
1098 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1099         cs46xx_dsp_pcm_ostream_set_period (chip, params_period_bytes(hw_params));
1100 #endif
1101         if (runtime->periods == CS46XX_FRAGS) {
1102                 if (runtime->dma_area != chip->capt.hw_buf.area)
1103                         snd_pcm_lib_free_pages(substream);
1104                 runtime->dma_area = chip->capt.hw_buf.area;
1105                 runtime->dma_addr = chip->capt.hw_buf.addr;
1106                 runtime->dma_bytes = chip->capt.hw_buf.bytes;
1107                 substream->ops = &snd_cs46xx_capture_ops;
1108         } else {
1109                 if (runtime->dma_area == chip->capt.hw_buf.area) {
1110                         runtime->dma_area = NULL;
1111                         runtime->dma_addr = 0;
1112                         runtime->dma_bytes = 0;
1113                 }
1114                 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1115                         return err;
1116                 substream->ops = &snd_cs46xx_capture_indirect_ops;
1117         }
1118
1119         return 0;
1120 }
1121
1122 static int snd_cs46xx_capture_hw_free(struct snd_pcm_substream *substream)
1123 {
1124         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1125         struct snd_pcm_runtime *runtime = substream->runtime;
1126
1127         if (runtime->dma_area != chip->capt.hw_buf.area)
1128                 snd_pcm_lib_free_pages(substream);
1129         runtime->dma_area = NULL;
1130         runtime->dma_addr = 0;
1131         runtime->dma_bytes = 0;
1132
1133         return 0;
1134 }
1135
1136 static int snd_cs46xx_capture_prepare(struct snd_pcm_substream *substream)
1137 {
1138         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1139         struct snd_pcm_runtime *runtime = substream->runtime;
1140
1141         snd_cs46xx_poke(chip, BA1_CBA, chip->capt.hw_buf.addr);
1142         chip->capt.shift = 2;
1143         memset(&chip->capt.pcm_rec, 0, sizeof(chip->capt.pcm_rec));
1144         chip->capt.pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1145         chip->capt.pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << 2;
1146         snd_cs46xx_set_capture_sample_rate(chip, runtime->rate);
1147
1148         return 0;
1149 }
1150
1151 static irqreturn_t snd_cs46xx_interrupt(int irq, void *dev_id)
1152 {
1153         struct snd_cs46xx *chip = dev_id;
1154         u32 status1;
1155 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1156         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1157         u32 status2;
1158         int i;
1159         struct snd_cs46xx_pcm *cpcm = NULL;
1160 #endif
1161
1162         /*
1163          *  Read the Interrupt Status Register to clear the interrupt
1164          */
1165         status1 = snd_cs46xx_peekBA0(chip, BA0_HISR);
1166         if ((status1 & 0x7fffffff) == 0) {
1167                 snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1168                 return IRQ_NONE;
1169         }
1170
1171 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1172         status2 = snd_cs46xx_peekBA0(chip, BA0_HSR0);
1173
1174         for (i = 0; i < DSP_MAX_PCM_CHANNELS; ++i) {
1175                 if (i <= 15) {
1176                         if ( status1 & (1 << i) ) {
1177                                 if (i == CS46XX_DSP_CAPTURE_CHANNEL) {
1178                                         if (chip->capt.substream)
1179                                                 snd_pcm_period_elapsed(chip->capt.substream);
1180                                 } else {
1181                                         if (ins->pcm_channels[i].active &&
1182                                             ins->pcm_channels[i].private_data &&
1183                                             !ins->pcm_channels[i].unlinked) {
1184                                                 cpcm = ins->pcm_channels[i].private_data;
1185                                                 snd_pcm_period_elapsed(cpcm->substream);
1186                                         }
1187                                 }
1188                         }
1189                 } else {
1190                         if ( status2 & (1 << (i - 16))) {
1191                                 if (ins->pcm_channels[i].active && 
1192                                     ins->pcm_channels[i].private_data &&
1193                                     !ins->pcm_channels[i].unlinked) {
1194                                         cpcm = ins->pcm_channels[i].private_data;
1195                                         snd_pcm_period_elapsed(cpcm->substream);
1196                                 }
1197                         }
1198                 }
1199         }
1200
1201 #else
1202         /* old dsp */
1203         if ((status1 & HISR_VC0) && chip->playback_pcm) {
1204                 if (chip->playback_pcm->substream)
1205                         snd_pcm_period_elapsed(chip->playback_pcm->substream);
1206         }
1207         if ((status1 & HISR_VC1) && chip->pcm) {
1208                 if (chip->capt.substream)
1209                         snd_pcm_period_elapsed(chip->capt.substream);
1210         }
1211 #endif
1212
1213         if ((status1 & HISR_MIDI) && chip->rmidi) {
1214                 unsigned char c;
1215                 
1216                 spin_lock(&chip->reg_lock);
1217                 while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_RBE) == 0) {
1218                         c = snd_cs46xx_peekBA0(chip, BA0_MIDRP);
1219                         if ((chip->midcr & MIDCR_RIE) == 0)
1220                                 continue;
1221                         snd_rawmidi_receive(chip->midi_input, &c, 1);
1222                 }
1223                 while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
1224                         if ((chip->midcr & MIDCR_TIE) == 0)
1225                                 break;
1226                         if (snd_rawmidi_transmit(chip->midi_output, &c, 1) != 1) {
1227                                 chip->midcr &= ~MIDCR_TIE;
1228                                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
1229                                 break;
1230                         }
1231                         snd_cs46xx_pokeBA0(chip, BA0_MIDWP, c);
1232                 }
1233                 spin_unlock(&chip->reg_lock);
1234         }
1235         /*
1236          *  EOI to the PCI part....reenables interrupts
1237          */
1238         snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1239
1240         return IRQ_HANDLED;
1241 }
1242
1243 static struct snd_pcm_hardware snd_cs46xx_playback =
1244 {
1245         .info =                 (SNDRV_PCM_INFO_MMAP |
1246                                  SNDRV_PCM_INFO_INTERLEAVED | 
1247                                  SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1248                                  /*SNDRV_PCM_INFO_RESUME*/),
1249         .formats =              (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
1250                                  SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
1251                                  SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE),
1252         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1253         .rate_min =             5500,
1254         .rate_max =             48000,
1255         .channels_min =         1,
1256         .channels_max =         2,
1257         .buffer_bytes_max =     (256 * 1024),
1258         .period_bytes_min =     CS46XX_MIN_PERIOD_SIZE,
1259         .period_bytes_max =     CS46XX_MAX_PERIOD_SIZE,
1260         .periods_min =          CS46XX_FRAGS,
1261         .periods_max =          1024,
1262         .fifo_size =            0,
1263 };
1264
1265 static struct snd_pcm_hardware snd_cs46xx_capture =
1266 {
1267         .info =                 (SNDRV_PCM_INFO_MMAP |
1268                                  SNDRV_PCM_INFO_INTERLEAVED |
1269                                  SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1270                                  /*SNDRV_PCM_INFO_RESUME*/),
1271         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1272         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1273         .rate_min =             5500,
1274         .rate_max =             48000,
1275         .channels_min =         2,
1276         .channels_max =         2,
1277         .buffer_bytes_max =     (256 * 1024),
1278         .period_bytes_min =     CS46XX_MIN_PERIOD_SIZE,
1279         .period_bytes_max =     CS46XX_MAX_PERIOD_SIZE,
1280         .periods_min =          CS46XX_FRAGS,
1281         .periods_max =          1024,
1282         .fifo_size =            0,
1283 };
1284
1285 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1286
1287 static unsigned int period_sizes[] = { 32, 64, 128, 256, 512, 1024, 2048 };
1288
1289 static struct snd_pcm_hw_constraint_list hw_constraints_period_sizes = {
1290         .count = ARRAY_SIZE(period_sizes),
1291         .list = period_sizes,
1292         .mask = 0
1293 };
1294
1295 #endif
1296
1297 static void snd_cs46xx_pcm_free_substream(struct snd_pcm_runtime *runtime)
1298 {
1299         kfree(runtime->private_data);
1300 }
1301
1302 static int _cs46xx_playback_open_channel (struct snd_pcm_substream *substream,int pcm_channel_id)
1303 {
1304         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1305         struct snd_cs46xx_pcm * cpcm;
1306         struct snd_pcm_runtime *runtime = substream->runtime;
1307
1308         cpcm = kzalloc(sizeof(*cpcm), GFP_KERNEL);
1309         if (cpcm == NULL)
1310                 return -ENOMEM;
1311         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1312                                 PAGE_SIZE, &cpcm->hw_buf) < 0) {
1313                 kfree(cpcm);
1314                 return -ENOMEM;
1315         }
1316
1317         runtime->hw = snd_cs46xx_playback;
1318         runtime->private_data = cpcm;
1319         runtime->private_free = snd_cs46xx_pcm_free_substream;
1320
1321         cpcm->substream = substream;
1322 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1323         mutex_lock(&chip->spos_mutex);
1324         cpcm->pcm_channel = NULL; 
1325         cpcm->pcm_channel_id = pcm_channel_id;
1326
1327
1328         snd_pcm_hw_constraint_list(runtime, 0,
1329                                    SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 
1330                                    &hw_constraints_period_sizes);
1331
1332         mutex_unlock(&chip->spos_mutex);
1333 #else
1334         chip->playback_pcm = cpcm; /* HACK */
1335 #endif
1336
1337         if (chip->accept_valid)
1338                 substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1339         chip->active_ctrl(chip, 1);
1340
1341         return 0;
1342 }
1343
1344 static int snd_cs46xx_playback_open(struct snd_pcm_substream *substream)
1345 {
1346         snd_printdd("open front channel\n");
1347         return _cs46xx_playback_open_channel(substream,DSP_PCM_MAIN_CHANNEL);
1348 }
1349
1350 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1351 static int snd_cs46xx_playback_open_rear(struct snd_pcm_substream *substream)
1352 {
1353         snd_printdd("open rear channel\n");
1354
1355         return _cs46xx_playback_open_channel(substream,DSP_PCM_REAR_CHANNEL);
1356 }
1357
1358 static int snd_cs46xx_playback_open_clfe(struct snd_pcm_substream *substream)
1359 {
1360         snd_printdd("open center - LFE channel\n");
1361
1362         return _cs46xx_playback_open_channel(substream,DSP_PCM_CENTER_LFE_CHANNEL);
1363 }
1364
1365 static int snd_cs46xx_playback_open_iec958(struct snd_pcm_substream *substream)
1366 {
1367         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1368
1369         snd_printdd("open raw iec958 channel\n");
1370
1371         mutex_lock(&chip->spos_mutex);
1372         cs46xx_iec958_pre_open (chip);
1373         mutex_unlock(&chip->spos_mutex);
1374
1375         return _cs46xx_playback_open_channel(substream,DSP_IEC958_CHANNEL);
1376 }
1377
1378 static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream);
1379
1380 static int snd_cs46xx_playback_close_iec958(struct snd_pcm_substream *substream)
1381 {
1382         int err;
1383         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1384   
1385         snd_printdd("close raw iec958 channel\n");
1386
1387         err = snd_cs46xx_playback_close(substream);
1388
1389         mutex_lock(&chip->spos_mutex);
1390         cs46xx_iec958_post_close (chip);
1391         mutex_unlock(&chip->spos_mutex);
1392
1393         return err;
1394 }
1395 #endif
1396
1397 static int snd_cs46xx_capture_open(struct snd_pcm_substream *substream)
1398 {
1399         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1400
1401         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1402                                 PAGE_SIZE, &chip->capt.hw_buf) < 0)
1403                 return -ENOMEM;
1404         chip->capt.substream = substream;
1405         substream->runtime->hw = snd_cs46xx_capture;
1406
1407         if (chip->accept_valid)
1408                 substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1409
1410         chip->active_ctrl(chip, 1);
1411
1412 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1413         snd_pcm_hw_constraint_list(substream->runtime, 0,
1414                                    SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 
1415                                    &hw_constraints_period_sizes);
1416 #endif
1417         return 0;
1418 }
1419
1420 static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream)
1421 {
1422         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1423         struct snd_pcm_runtime *runtime = substream->runtime;
1424         struct snd_cs46xx_pcm * cpcm;
1425
1426         cpcm = runtime->private_data;
1427
1428         /* when playback_open fails, then cpcm can be NULL */
1429         if (!cpcm) return -ENXIO;
1430
1431 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1432         mutex_lock(&chip->spos_mutex);
1433         if (cpcm->pcm_channel) {
1434                 cs46xx_dsp_destroy_pcm_channel(chip,cpcm->pcm_channel);
1435                 cpcm->pcm_channel = NULL;
1436         }
1437         mutex_unlock(&chip->spos_mutex);
1438 #else
1439         chip->playback_pcm = NULL;
1440 #endif
1441
1442         cpcm->substream = NULL;
1443         snd_dma_free_pages(&cpcm->hw_buf);
1444         chip->active_ctrl(chip, -1);
1445
1446         return 0;
1447 }
1448
1449 static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
1450 {
1451         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1452
1453         chip->capt.substream = NULL;
1454         snd_dma_free_pages(&chip->capt.hw_buf);
1455         chip->active_ctrl(chip, -1);
1456
1457         return 0;
1458 }
1459
1460 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1461 static struct snd_pcm_ops snd_cs46xx_playback_rear_ops = {
1462         .open =                 snd_cs46xx_playback_open_rear,
1463         .close =                snd_cs46xx_playback_close,
1464         .ioctl =                snd_pcm_lib_ioctl,
1465         .hw_params =            snd_cs46xx_playback_hw_params,
1466         .hw_free =              snd_cs46xx_playback_hw_free,
1467         .prepare =              snd_cs46xx_playback_prepare,
1468         .trigger =              snd_cs46xx_playback_trigger,
1469         .pointer =              snd_cs46xx_playback_direct_pointer,
1470 };
1471
1472 static struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops = {
1473         .open =                 snd_cs46xx_playback_open_rear,
1474         .close =                snd_cs46xx_playback_close,
1475         .ioctl =                snd_pcm_lib_ioctl,
1476         .hw_params =            snd_cs46xx_playback_hw_params,
1477         .hw_free =              snd_cs46xx_playback_hw_free,
1478         .prepare =              snd_cs46xx_playback_prepare,
1479         .trigger =              snd_cs46xx_playback_trigger,
1480         .pointer =              snd_cs46xx_playback_indirect_pointer,
1481         .ack =                  snd_cs46xx_playback_transfer,
1482 };
1483
1484 static struct snd_pcm_ops snd_cs46xx_playback_clfe_ops = {
1485         .open =                 snd_cs46xx_playback_open_clfe,
1486         .close =                snd_cs46xx_playback_close,
1487         .ioctl =                snd_pcm_lib_ioctl,
1488         .hw_params =            snd_cs46xx_playback_hw_params,
1489         .hw_free =              snd_cs46xx_playback_hw_free,
1490         .prepare =              snd_cs46xx_playback_prepare,
1491         .trigger =              snd_cs46xx_playback_trigger,
1492         .pointer =              snd_cs46xx_playback_direct_pointer,
1493 };
1494
1495 static struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops = {
1496         .open =                 snd_cs46xx_playback_open_clfe,
1497         .close =                snd_cs46xx_playback_close,
1498         .ioctl =                snd_pcm_lib_ioctl,
1499         .hw_params =            snd_cs46xx_playback_hw_params,
1500         .hw_free =              snd_cs46xx_playback_hw_free,
1501         .prepare =              snd_cs46xx_playback_prepare,
1502         .trigger =              snd_cs46xx_playback_trigger,
1503         .pointer =              snd_cs46xx_playback_indirect_pointer,
1504         .ack =                  snd_cs46xx_playback_transfer,
1505 };
1506
1507 static struct snd_pcm_ops snd_cs46xx_playback_iec958_ops = {
1508         .open =                 snd_cs46xx_playback_open_iec958,
1509         .close =                snd_cs46xx_playback_close_iec958,
1510         .ioctl =                snd_pcm_lib_ioctl,
1511         .hw_params =            snd_cs46xx_playback_hw_params,
1512         .hw_free =              snd_cs46xx_playback_hw_free,
1513         .prepare =              snd_cs46xx_playback_prepare,
1514         .trigger =              snd_cs46xx_playback_trigger,
1515         .pointer =              snd_cs46xx_playback_direct_pointer,
1516 };
1517
1518 static struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops = {
1519         .open =                 snd_cs46xx_playback_open_iec958,
1520         .close =                snd_cs46xx_playback_close_iec958,
1521         .ioctl =                snd_pcm_lib_ioctl,
1522         .hw_params =            snd_cs46xx_playback_hw_params,
1523         .hw_free =              snd_cs46xx_playback_hw_free,
1524         .prepare =              snd_cs46xx_playback_prepare,
1525         .trigger =              snd_cs46xx_playback_trigger,
1526         .pointer =              snd_cs46xx_playback_indirect_pointer,
1527         .ack =                  snd_cs46xx_playback_transfer,
1528 };
1529
1530 #endif
1531
1532 static struct snd_pcm_ops snd_cs46xx_playback_ops = {
1533         .open =                 snd_cs46xx_playback_open,
1534         .close =                snd_cs46xx_playback_close,
1535         .ioctl =                snd_pcm_lib_ioctl,
1536         .hw_params =            snd_cs46xx_playback_hw_params,
1537         .hw_free =              snd_cs46xx_playback_hw_free,
1538         .prepare =              snd_cs46xx_playback_prepare,
1539         .trigger =              snd_cs46xx_playback_trigger,
1540         .pointer =              snd_cs46xx_playback_direct_pointer,
1541 };
1542
1543 static struct snd_pcm_ops snd_cs46xx_playback_indirect_ops = {
1544         .open =                 snd_cs46xx_playback_open,
1545         .close =                snd_cs46xx_playback_close,
1546         .ioctl =                snd_pcm_lib_ioctl,
1547         .hw_params =            snd_cs46xx_playback_hw_params,
1548         .hw_free =              snd_cs46xx_playback_hw_free,
1549         .prepare =              snd_cs46xx_playback_prepare,
1550         .trigger =              snd_cs46xx_playback_trigger,
1551         .pointer =              snd_cs46xx_playback_indirect_pointer,
1552         .ack =                  snd_cs46xx_playback_transfer,
1553 };
1554
1555 static struct snd_pcm_ops snd_cs46xx_capture_ops = {
1556         .open =                 snd_cs46xx_capture_open,
1557         .close =                snd_cs46xx_capture_close,
1558         .ioctl =                snd_pcm_lib_ioctl,
1559         .hw_params =            snd_cs46xx_capture_hw_params,
1560         .hw_free =              snd_cs46xx_capture_hw_free,
1561         .prepare =              snd_cs46xx_capture_prepare,
1562         .trigger =              snd_cs46xx_capture_trigger,
1563         .pointer =              snd_cs46xx_capture_direct_pointer,
1564 };
1565
1566 static struct snd_pcm_ops snd_cs46xx_capture_indirect_ops = {
1567         .open =                 snd_cs46xx_capture_open,
1568         .close =                snd_cs46xx_capture_close,
1569         .ioctl =                snd_pcm_lib_ioctl,
1570         .hw_params =            snd_cs46xx_capture_hw_params,
1571         .hw_free =              snd_cs46xx_capture_hw_free,
1572         .prepare =              snd_cs46xx_capture_prepare,
1573         .trigger =              snd_cs46xx_capture_trigger,
1574         .pointer =              snd_cs46xx_capture_indirect_pointer,
1575         .ack =                  snd_cs46xx_capture_transfer,
1576 };
1577
1578 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1579 #define MAX_PLAYBACK_CHANNELS   (DSP_MAX_PCM_CHANNELS - 1)
1580 #else
1581 #define MAX_PLAYBACK_CHANNELS   1
1582 #endif
1583
1584 int __devinit snd_cs46xx_pcm(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
1585 {
1586         struct snd_pcm *pcm;
1587         int err;
1588
1589         if (rpcm)
1590                 *rpcm = NULL;
1591         if ((err = snd_pcm_new(chip->card, "CS46xx", device, MAX_PLAYBACK_CHANNELS, 1, &pcm)) < 0)
1592                 return err;
1593
1594         pcm->private_data = chip;
1595
1596         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_ops);
1597         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs46xx_capture_ops);
1598
1599         /* global setup */
1600         pcm->info_flags = 0;
1601         strcpy(pcm->name, "CS46xx");
1602         chip->pcm = pcm;
1603
1604         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1605                                               snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1606
1607         if (rpcm)
1608                 *rpcm = pcm;
1609
1610         return 0;
1611 }
1612
1613
1614 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1615 int __devinit snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
1616 {
1617         struct snd_pcm *pcm;
1618         int err;
1619
1620         if (rpcm)
1621                 *rpcm = NULL;
1622
1623         if ((err = snd_pcm_new(chip->card, "CS46xx - Rear", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
1624                 return err;
1625
1626         pcm->private_data = chip;
1627
1628         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_rear_ops);
1629
1630         /* global setup */
1631         pcm->info_flags = 0;
1632         strcpy(pcm->name, "CS46xx - Rear");
1633         chip->pcm_rear = pcm;
1634
1635         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1636                                               snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1637
1638         if (rpcm)
1639                 *rpcm = pcm;
1640
1641         return 0;
1642 }
1643
1644 int __devinit snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
1645 {
1646         struct snd_pcm *pcm;
1647         int err;
1648
1649         if (rpcm)
1650                 *rpcm = NULL;
1651
1652         if ((err = snd_pcm_new(chip->card, "CS46xx - Center LFE", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
1653                 return err;
1654
1655         pcm->private_data = chip;
1656
1657         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_clfe_ops);
1658
1659         /* global setup */
1660         pcm->info_flags = 0;
1661         strcpy(pcm->name, "CS46xx - Center LFE");
1662         chip->pcm_center_lfe = pcm;
1663
1664         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1665                                               snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1666
1667         if (rpcm)
1668                 *rpcm = pcm;
1669
1670         return 0;
1671 }
1672
1673 int __devinit snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
1674 {
1675         struct snd_pcm *pcm;
1676         int err;
1677
1678         if (rpcm)
1679                 *rpcm = NULL;
1680
1681         if ((err = snd_pcm_new(chip->card, "CS46xx - IEC958", device, 1, 0, &pcm)) < 0)
1682                 return err;
1683
1684         pcm->private_data = chip;
1685
1686         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_iec958_ops);
1687
1688         /* global setup */
1689         pcm->info_flags = 0;
1690         strcpy(pcm->name, "CS46xx - IEC958");
1691         chip->pcm_rear = pcm;
1692
1693         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1694                                               snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
1695
1696         if (rpcm)
1697                 *rpcm = pcm;
1698
1699         return 0;
1700 }
1701 #endif
1702
1703 /*
1704  *  Mixer routines
1705  */
1706 static void snd_cs46xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1707 {
1708         struct snd_cs46xx *chip = bus->private_data;
1709
1710         chip->ac97_bus = NULL;
1711 }
1712
1713 static void snd_cs46xx_mixer_free_ac97(struct snd_ac97 *ac97)
1714 {
1715         struct snd_cs46xx *chip = ac97->private_data;
1716
1717         snd_assert ((ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) ||
1718                     (ac97 == chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]),
1719                     return);
1720
1721         if (ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) {
1722                 chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] = NULL;
1723                 chip->eapd_switch = NULL;
1724         }
1725         else
1726                 chip->ac97[CS46XX_SECONDARY_CODEC_INDEX] = NULL;
1727 }
1728
1729 static int snd_cs46xx_vol_info(struct snd_kcontrol *kcontrol, 
1730                                struct snd_ctl_elem_info *uinfo)
1731 {
1732         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1733         uinfo->count = 2;
1734         uinfo->value.integer.min = 0;
1735         uinfo->value.integer.max = 0x7fff;
1736         return 0;
1737 }
1738
1739 static int snd_cs46xx_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1740 {
1741         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1742         int reg = kcontrol->private_value;
1743         unsigned int val = snd_cs46xx_peek(chip, reg);
1744         ucontrol->value.integer.value[0] = 0xffff - (val >> 16);
1745         ucontrol->value.integer.value[1] = 0xffff - (val & 0xffff);
1746         return 0;
1747 }
1748
1749 static int snd_cs46xx_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1750 {
1751         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1752         int reg = kcontrol->private_value;
1753         unsigned int val = ((0xffff - ucontrol->value.integer.value[0]) << 16 | 
1754                             (0xffff - ucontrol->value.integer.value[1]));
1755         unsigned int old = snd_cs46xx_peek(chip, reg);
1756         int change = (old != val);
1757
1758         if (change) {
1759                 snd_cs46xx_poke(chip, reg, val);
1760         }
1761
1762         return change;
1763 }
1764
1765 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1766
1767 static int snd_cs46xx_vol_dac_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1768 {
1769         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1770
1771         ucontrol->value.integer.value[0] = chip->dsp_spos_instance->dac_volume_left;
1772         ucontrol->value.integer.value[1] = chip->dsp_spos_instance->dac_volume_right;
1773
1774         return 0;
1775 }
1776
1777 static int snd_cs46xx_vol_dac_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1778 {
1779         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1780         int change = 0;
1781
1782         if (chip->dsp_spos_instance->dac_volume_right != ucontrol->value.integer.value[0] ||
1783             chip->dsp_spos_instance->dac_volume_left != ucontrol->value.integer.value[1]) {
1784                 cs46xx_dsp_set_dac_volume(chip,
1785                                           ucontrol->value.integer.value[0],
1786                                           ucontrol->value.integer.value[1]);
1787                 change = 1;
1788         }
1789
1790         return change;
1791 }
1792
1793 #if 0
1794 static int snd_cs46xx_vol_iec958_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1795 {
1796         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1797
1798         ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_input_volume_left;
1799         ucontrol->value.integer.value[1] = chip->dsp_spos_instance->spdif_input_volume_right;
1800         return 0;
1801 }
1802
1803 static int snd_cs46xx_vol_iec958_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1804 {
1805         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1806         int change = 0;
1807
1808         if (chip->dsp_spos_instance->spdif_input_volume_left  != ucontrol->value.integer.value[0] ||
1809             chip->dsp_spos_instance->spdif_input_volume_right!= ucontrol->value.integer.value[1]) {
1810                 cs46xx_dsp_set_iec958_volume (chip,
1811                                               ucontrol->value.integer.value[0],
1812                                               ucontrol->value.integer.value[1]);
1813                 change = 1;
1814         }
1815
1816         return change;
1817 }
1818 #endif
1819
1820 #define snd_mixer_boolean_info          snd_ctl_boolean_mono_info
1821
1822 static int snd_cs46xx_iec958_get(struct snd_kcontrol *kcontrol, 
1823                                  struct snd_ctl_elem_value *ucontrol)
1824 {
1825         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1826         int reg = kcontrol->private_value;
1827
1828         if (reg == CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT)
1829                 ucontrol->value.integer.value[0] = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
1830         else
1831                 ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_status_in;
1832
1833         return 0;
1834 }
1835
1836 static int snd_cs46xx_iec958_put(struct snd_kcontrol *kcontrol, 
1837                                   struct snd_ctl_elem_value *ucontrol)
1838 {
1839         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1840         int change, res;
1841
1842         switch (kcontrol->private_value) {
1843         case CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT:
1844                 mutex_lock(&chip->spos_mutex);
1845                 change = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
1846                 if (ucontrol->value.integer.value[0] && !change) 
1847                         cs46xx_dsp_enable_spdif_out(chip);
1848                 else if (change && !ucontrol->value.integer.value[0])
1849                         cs46xx_dsp_disable_spdif_out(chip);
1850
1851                 res = (change != (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED));
1852                 mutex_unlock(&chip->spos_mutex);
1853                 break;
1854         case CS46XX_MIXER_SPDIF_INPUT_ELEMENT:
1855                 change = chip->dsp_spos_instance->spdif_status_in;
1856                 if (ucontrol->value.integer.value[0] && !change) {
1857                         cs46xx_dsp_enable_spdif_in(chip);
1858                         /* restore volume */
1859                 }
1860                 else if (change && !ucontrol->value.integer.value[0])
1861                         cs46xx_dsp_disable_spdif_in(chip);
1862                 
1863                 res = (change != chip->dsp_spos_instance->spdif_status_in);
1864                 break;
1865         default:
1866                 res = -EINVAL;
1867                 snd_assert(0, (void)0);
1868         }
1869
1870         return res;
1871 }
1872
1873 static int snd_cs46xx_adc_capture_get(struct snd_kcontrol *kcontrol, 
1874                                       struct snd_ctl_elem_value *ucontrol)
1875 {
1876         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1877         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1878
1879         if (ins->adc_input != NULL) 
1880                 ucontrol->value.integer.value[0] = 1;
1881         else 
1882                 ucontrol->value.integer.value[0] = 0;
1883         
1884         return 0;
1885 }
1886
1887 static int snd_cs46xx_adc_capture_put(struct snd_kcontrol *kcontrol, 
1888                                       struct snd_ctl_elem_value *ucontrol)
1889 {
1890         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1891         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1892         int change = 0;
1893
1894         if (ucontrol->value.integer.value[0] && !ins->adc_input) {
1895                 cs46xx_dsp_enable_adc_capture(chip);
1896                 change = 1;
1897         } else  if (!ucontrol->value.integer.value[0] && ins->adc_input) {
1898                 cs46xx_dsp_disable_adc_capture(chip);
1899                 change = 1;
1900         }
1901         return change;
1902 }
1903
1904 static int snd_cs46xx_pcm_capture_get(struct snd_kcontrol *kcontrol, 
1905                                       struct snd_ctl_elem_value *ucontrol)
1906 {
1907         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1908         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1909
1910         if (ins->pcm_input != NULL) 
1911                 ucontrol->value.integer.value[0] = 1;
1912         else 
1913                 ucontrol->value.integer.value[0] = 0;
1914
1915         return 0;
1916 }
1917
1918
1919 static int snd_cs46xx_pcm_capture_put(struct snd_kcontrol *kcontrol, 
1920                                       struct snd_ctl_elem_value *ucontrol)
1921 {
1922         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1923         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1924         int change = 0;
1925
1926         if (ucontrol->value.integer.value[0] && !ins->pcm_input) {
1927                 cs46xx_dsp_enable_pcm_capture(chip);
1928                 change = 1;
1929         } else  if (!ucontrol->value.integer.value[0] && ins->pcm_input) {
1930                 cs46xx_dsp_disable_pcm_capture(chip);
1931                 change = 1;
1932         }
1933
1934         return change;
1935 }
1936
1937 static int snd_herc_spdif_select_get(struct snd_kcontrol *kcontrol, 
1938                                      struct snd_ctl_elem_value *ucontrol)
1939 {
1940         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1941
1942         int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
1943
1944         if (val1 & EGPIODR_GPOE0)
1945                 ucontrol->value.integer.value[0] = 1;
1946         else
1947                 ucontrol->value.integer.value[0] = 0;
1948
1949         return 0;
1950 }
1951
1952 /*
1953  *      Game Theatre XP card - EGPIO[0] is used to select SPDIF input optical or coaxial.
1954  */ 
1955 static int snd_herc_spdif_select_put(struct snd_kcontrol *kcontrol, 
1956                                        struct snd_ctl_elem_value *ucontrol)
1957 {
1958         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1959         int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
1960         int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
1961
1962         if (ucontrol->value.integer.value[0]) {
1963                 /* optical is default */
1964                 snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, 
1965                                    EGPIODR_GPOE0 | val1);  /* enable EGPIO0 output */
1966                 snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, 
1967                                    EGPIOPTR_GPPT0 | val2); /* open-drain on output */
1968         } else {
1969                 /* coaxial */
1970                 snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE0); /* disable */
1971                 snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT0); /* disable */
1972         }
1973
1974         /* checking diff from the EGPIO direction register 
1975            should be enough */
1976         return (val1 != (int)snd_cs46xx_peekBA0(chip, BA0_EGPIODR));
1977 }
1978
1979
1980 static int snd_cs46xx_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1981 {
1982         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1983         uinfo->count = 1;
1984         return 0;
1985 }
1986
1987 static int snd_cs46xx_spdif_default_get(struct snd_kcontrol *kcontrol,
1988                                         struct snd_ctl_elem_value *ucontrol)
1989 {
1990         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1991         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1992
1993         mutex_lock(&chip->spos_mutex);
1994         ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_default >> 24) & 0xff);
1995         ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_default >> 16) & 0xff);
1996         ucontrol->value.iec958.status[2] = 0;
1997         ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_default) & 0xff);
1998         mutex_unlock(&chip->spos_mutex);
1999
2000         return 0;
2001 }
2002
2003 static int snd_cs46xx_spdif_default_put(struct snd_kcontrol *kcontrol,
2004                                         struct snd_ctl_elem_value *ucontrol)
2005 {
2006         struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
2007         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2008         unsigned int val;
2009         int change;
2010
2011         mutex_lock(&chip->spos_mutex);
2012         val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2013                 ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[2]) << 16) |
2014                 ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3]))  |
2015                 /* left and right validity bit */
2016                 (1 << 13) | (1 << 12);
2017
2018
2019         change = (unsigned int)ins->spdif_csuv_default != val;
2020         ins->spdif_csuv_default = val;
2021
2022         if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) )
2023                 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2024
2025         mutex_unlock(&chip->spos_mutex);
2026
2027         return change;
2028 }
2029
2030 static int snd_cs46xx_spdif_mask_get(struct snd_kcontrol *kcontrol,
2031                                      struct snd_ctl_elem_value *ucontrol)
2032 {
2033         ucontrol->value.iec958.status[0] = 0xff;
2034         ucontrol->value.iec958.status[1] = 0xff;
2035         ucontrol->value.iec958.status[2] = 0x00;
2036         ucontrol->value.iec958.status[3] = 0xff;
2037         return 0;
2038 }
2039
2040 static int snd_cs46xx_spdif_stream_get(struct snd_kcontrol *kcontrol,
2041                                          struct snd_ctl_elem_value *ucontrol)
2042 {
2043         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2044         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2045
2046         mutex_lock(&chip->spos_mutex);
2047         ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_stream >> 24) & 0xff);
2048         ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_stream >> 16) & 0xff);
2049         ucontrol->value.iec958.status[2] = 0;
2050         ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_stream) & 0xff);
2051         mutex_unlock(&chip->spos_mutex);
2052
2053         return 0;
2054 }
2055
2056 static int snd_cs46xx_spdif_stream_put(struct snd_kcontrol *kcontrol,
2057                                         struct snd_ctl_elem_value *ucontrol)
2058 {
2059         struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
2060         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2061         unsigned int val;
2062         int change;
2063
2064         mutex_lock(&chip->spos_mutex);
2065         val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2066                 ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[1]) << 16) |
2067                 ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3])) |
2068                 /* left and right validity bit */
2069                 (1 << 13) | (1 << 12);
2070
2071
2072         change = ins->spdif_csuv_stream != val;
2073         ins->spdif_csuv_stream = val;
2074
2075         if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN )
2076                 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2077
2078         mutex_unlock(&chip->spos_mutex);
2079
2080         return change;
2081 }
2082
2083 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2084
2085
2086 static struct snd_kcontrol_new snd_cs46xx_controls[] __devinitdata = {
2087 {
2088         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2089         .name = "DAC Volume",
2090         .info = snd_cs46xx_vol_info,
2091 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2092         .get = snd_cs46xx_vol_get,
2093         .put = snd_cs46xx_vol_put,
2094         .private_value = BA1_PVOL,
2095 #else
2096         .get = snd_cs46xx_vol_dac_get,
2097         .put = snd_cs46xx_vol_dac_put,
2098 #endif
2099 },
2100
2101 {
2102         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2103         .name = "ADC Volume",
2104         .info = snd_cs46xx_vol_info,
2105         .get = snd_cs46xx_vol_get,
2106         .put = snd_cs46xx_vol_put,
2107 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2108         .private_value = BA1_CVOL,
2109 #else
2110         .private_value = (VARIDECIMATE_SCB_ADDR + 0xE) << 2,
2111 #endif
2112 },
2113 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2114 {
2115         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2116         .name = "ADC Capture Switch",
2117         .info = snd_mixer_boolean_info,
2118         .get = snd_cs46xx_adc_capture_get,
2119         .put = snd_cs46xx_adc_capture_put
2120 },
2121 {
2122         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2123         .name = "DAC Capture Switch",
2124         .info = snd_mixer_boolean_info,
2125         .get = snd_cs46xx_pcm_capture_get,
2126         .put = snd_cs46xx_pcm_capture_put
2127 },
2128 {
2129         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2130         .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
2131         .info = snd_mixer_boolean_info,
2132         .get = snd_cs46xx_iec958_get,
2133         .put = snd_cs46xx_iec958_put,
2134         .private_value = CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT,
2135 },
2136 {
2137         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2138         .name = SNDRV_CTL_NAME_IEC958("Input ",NONE,SWITCH),
2139         .info = snd_mixer_boolean_info,
2140         .get = snd_cs46xx_iec958_get,
2141         .put = snd_cs46xx_iec958_put,
2142         .private_value = CS46XX_MIXER_SPDIF_INPUT_ELEMENT,
2143 },
2144 #if 0
2145 /* Input IEC958 volume does not work for the moment. (Benny) */
2146 {
2147         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2148         .name = SNDRV_CTL_NAME_IEC958("Input ",NONE,VOLUME),
2149         .info = snd_cs46xx_vol_info,
2150         .get = snd_cs46xx_vol_iec958_get,
2151         .put = snd_cs46xx_vol_iec958_put,
2152         .private_value = (ASYNCRX_SCB_ADDR + 0xE) << 2,
2153 },
2154 #endif
2155 {
2156         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
2157         .name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2158         .info =  snd_cs46xx_spdif_info,
2159         .get =   snd_cs46xx_spdif_default_get,
2160         .put =   snd_cs46xx_spdif_default_put,
2161 },
2162 {
2163         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
2164         .name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
2165         .info =  snd_cs46xx_spdif_info,
2166         .get =   snd_cs46xx_spdif_mask_get,
2167         .access = SNDRV_CTL_ELEM_ACCESS_READ
2168 },
2169 {
2170         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
2171         .name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2172         .info =  snd_cs46xx_spdif_info,
2173         .get =   snd_cs46xx_spdif_stream_get,
2174         .put =   snd_cs46xx_spdif_stream_put
2175 },
2176
2177 #endif
2178 };
2179
2180 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2181 /* set primary cs4294 codec into Extended Audio Mode */
2182 static int snd_cs46xx_front_dup_get(struct snd_kcontrol *kcontrol, 
2183                                     struct snd_ctl_elem_value *ucontrol)
2184 {
2185         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2186         unsigned short val;
2187         val = snd_ac97_read(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX], AC97_CSR_ACMODE);
2188         ucontrol->value.integer.value[0] = (val & 0x200) ? 0 : 1;
2189         return 0;
2190 }
2191
2192 static int snd_cs46xx_front_dup_put(struct snd_kcontrol *kcontrol, 
2193                                     struct snd_ctl_elem_value *ucontrol)
2194 {
2195         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2196         return snd_ac97_update_bits(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2197                                     AC97_CSR_ACMODE, 0x200,
2198                                     ucontrol->value.integer.value[0] ? 0 : 0x200);
2199 }
2200
2201 static struct snd_kcontrol_new snd_cs46xx_front_dup_ctl = {
2202         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2203         .name = "Duplicate Front",
2204         .info = snd_mixer_boolean_info,
2205         .get = snd_cs46xx_front_dup_get,
2206         .put = snd_cs46xx_front_dup_put,
2207 };
2208 #endif
2209
2210 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2211 /* Only available on the Hercules Game Theater XP soundcard */
2212 static struct snd_kcontrol_new snd_hercules_controls[] = {
2213 {
2214         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2215         .name = "Optical/Coaxial SPDIF Input Switch",
2216         .info = snd_mixer_boolean_info,
2217         .get = snd_herc_spdif_select_get,
2218         .put = snd_herc_spdif_select_put,
2219 },
2220 };
2221
2222
2223 static void snd_cs46xx_codec_reset (struct snd_ac97 * ac97)
2224 {
2225         unsigned long end_time;
2226         int err;
2227
2228         /* reset to defaults */
2229         snd_ac97_write(ac97, AC97_RESET, 0);    
2230
2231         /* set the desired CODEC mode */
2232         if (ac97->num == CS46XX_PRIMARY_CODEC_INDEX) {
2233                 snd_printdd("cs46xx: CODOEC1 mode %04x\n",0x0);
2234                 snd_cs46xx_ac97_write(ac97,AC97_CSR_ACMODE,0x0);
2235         } else if (ac97->num == CS46XX_SECONDARY_CODEC_INDEX) {
2236                 snd_printdd("cs46xx: CODOEC2 mode %04x\n",0x3);
2237                 snd_cs46xx_ac97_write(ac97,AC97_CSR_ACMODE,0x3);
2238         } else {
2239                 snd_assert(0); /* should never happen ... */
2240         }
2241
2242         udelay(50);
2243
2244         /* it's necessary to wait awhile until registers are accessible after RESET */
2245         /* because the PCM or MASTER volume registers can be modified, */
2246         /* the REC_GAIN register is used for tests */
2247         end_time = jiffies + HZ;
2248         do {
2249                 unsigned short ext_mid;
2250     
2251                 /* use preliminary reads to settle the communication */
2252                 snd_ac97_read(ac97, AC97_RESET);
2253                 snd_ac97_read(ac97, AC97_VENDOR_ID1);
2254                 snd_ac97_read(ac97, AC97_VENDOR_ID2);
2255                 /* modem? */
2256                 ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2257                 if (ext_mid != 0xffff && (ext_mid & 1) != 0)
2258                         return;
2259
2260                 /* test if we can write to the record gain volume register */
2261                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
2262                 if ((err = snd_ac97_read(ac97, AC97_REC_GAIN)) == 0x8a05)
2263                         return;
2264
2265                 msleep(10);
2266         } while (time_after_eq(end_time, jiffies));
2267
2268         snd_printk(KERN_ERR "CS46xx secondary codec doesn't respond!\n");  
2269 }
2270 #endif
2271
2272 static int __devinit cs46xx_detect_codec(struct snd_cs46xx *chip, int codec)
2273 {
2274         int idx, err;
2275         struct snd_ac97_template ac97;
2276
2277         memset(&ac97, 0, sizeof(ac97));
2278         ac97.private_data = chip;
2279         ac97.private_free = snd_cs46xx_mixer_free_ac97;
2280         ac97.num = codec;
2281         if (chip->amplifier_ctrl == amp_voyetra)
2282                 ac97.scaps = AC97_SCAP_INV_EAPD;
2283
2284         if (codec == CS46XX_SECONDARY_CODEC_INDEX) {
2285                 snd_cs46xx_codec_write(chip, AC97_RESET, 0, codec);
2286                 udelay(10);
2287                 if (snd_cs46xx_codec_read(chip, AC97_RESET, codec) & 0x8000) {
2288                         snd_printdd("snd_cs46xx: seconadry codec not present\n");
2289                         return -ENXIO;
2290                 }
2291         }
2292
2293         snd_cs46xx_codec_write(chip, AC97_MASTER, 0x8000, codec);
2294         for (idx = 0; idx < 100; ++idx) {
2295                 if (snd_cs46xx_codec_read(chip, AC97_MASTER, codec) == 0x8000) {
2296                         err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97[codec]);
2297                         return err;
2298                 }
2299                 msleep(10);
2300         }
2301         snd_printdd("snd_cs46xx: codec %d detection timeout\n", codec);
2302         return -ENXIO;
2303 }
2304
2305 int __devinit snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device)
2306 {
2307         struct snd_card *card = chip->card;
2308         struct snd_ctl_elem_id id;
2309         int err;
2310         unsigned int idx;
2311         static struct snd_ac97_bus_ops ops = {
2312 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2313                 .reset = snd_cs46xx_codec_reset,
2314 #endif
2315                 .write = snd_cs46xx_ac97_write,
2316                 .read = snd_cs46xx_ac97_read,
2317         };
2318
2319         /* detect primary codec */
2320         chip->nr_ac97_codecs = 0;
2321         snd_printdd("snd_cs46xx: detecting primary codec\n");
2322         if ((err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus)) < 0)
2323                 return err;
2324         chip->ac97_bus->private_free = snd_cs46xx_mixer_free_ac97_bus;
2325
2326         if (cs46xx_detect_codec(chip, CS46XX_PRIMARY_CODEC_INDEX) < 0)
2327                 return -ENXIO;
2328         chip->nr_ac97_codecs = 1;
2329
2330 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2331         snd_printdd("snd_cs46xx: detecting seconadry codec\n");
2332         /* try detect a secondary codec */
2333         if (! cs46xx_detect_codec(chip, CS46XX_SECONDARY_CODEC_INDEX))
2334                 chip->nr_ac97_codecs = 2;
2335 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2336
2337         /* add cs4630 mixer controls */
2338         for (idx = 0; idx < ARRAY_SIZE(snd_cs46xx_controls); idx++) {
2339                 struct snd_kcontrol *kctl;
2340                 kctl = snd_ctl_new1(&snd_cs46xx_controls[idx], chip);
2341                 if (kctl && kctl->id.iface == SNDRV_CTL_ELEM_IFACE_PCM)
2342                         kctl->id.device = spdif_device;
2343                 if ((err = snd_ctl_add(card, kctl)) < 0)
2344                         return err;
2345         }
2346
2347         /* get EAPD mixer switch (for voyetra hack) */
2348         memset(&id, 0, sizeof(id));
2349         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2350         strcpy(id.name, "External Amplifier");
2351         chip->eapd_switch = snd_ctl_find_id(chip->card, &id);
2352     
2353 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2354         if (chip->nr_ac97_codecs == 1) {
2355                 unsigned int id2 = chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]->id & 0xffff;
2356                 if (id2 == 0x592b || id2 == 0x592d) {
2357                         err = snd_ctl_add(card, snd_ctl_new1(&snd_cs46xx_front_dup_ctl, chip));
2358                         if (err < 0)
2359                                 return err;
2360                         snd_ac97_write_cache(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2361                                              AC97_CSR_ACMODE, 0x200);
2362                 }
2363         }
2364         /* do soundcard specific mixer setup */
2365         if (chip->mixer_init) {
2366                 snd_printdd ("calling chip->mixer_init(chip);\n");
2367                 chip->mixer_init(chip);
2368         }
2369 #endif
2370
2371         /* turn on amplifier */
2372         chip->amplifier_ctrl(chip, 1);
2373     
2374         return 0;
2375 }
2376
2377 /*
2378  *  RawMIDI interface
2379  */
2380
2381 static void snd_cs46xx_midi_reset(struct snd_cs46xx *chip)
2382 {
2383         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, MIDCR_MRST);
2384         udelay(100);
2385         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2386 }
2387
2388 static int snd_cs46xx_midi_input_open(struct snd_rawmidi_substream *substream)
2389 {
2390         struct snd_cs46xx *chip = substream->rmidi->private_data;
2391
2392         chip->active_ctrl(chip, 1);
2393         spin_lock_irq(&chip->reg_lock);
2394         chip->uartm |= CS46XX_MODE_INPUT;
2395         chip->midcr |= MIDCR_RXE;
2396         chip->midi_input = substream;
2397         if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2398                 snd_cs46xx_midi_reset(chip);
2399         } else {
2400                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2401         }
2402         spin_unlock_irq(&chip->reg_lock);
2403         return 0;
2404 }
2405
2406 static int snd_cs46xx_midi_input_close(struct snd_rawmidi_substream *substream)
2407 {
2408         struct snd_cs46xx *chip = substream->rmidi->private_data;
2409
2410         spin_lock_irq(&chip->reg_lock);
2411         chip->midcr &= ~(MIDCR_RXE | MIDCR_RIE);
2412         chip->midi_input = NULL;
2413         if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2414                 snd_cs46xx_midi_reset(chip);
2415         } else {
2416                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2417         }
2418         chip->uartm &= ~CS46XX_MODE_INPUT;
2419         spin_unlock_irq(&chip->reg_lock);
2420         chip->active_ctrl(chip, -1);
2421         return 0;
2422 }
2423
2424 static int snd_cs46xx_midi_output_open(struct snd_rawmidi_substream *substream)
2425 {
2426         struct snd_cs46xx *chip = substream->rmidi->private_data;
2427
2428         chip->active_ctrl(chip, 1);
2429
2430         spin_lock_irq(&chip->reg_lock);
2431         chip->uartm |= CS46XX_MODE_OUTPUT;
2432         chip->midcr |= MIDCR_TXE;
2433         chip->midi_output = substream;
2434         if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2435                 snd_cs46xx_midi_reset(chip);
2436         } else {
2437                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2438         }
2439         spin_unlock_irq(&chip->reg_lock);
2440         return 0;
2441 }
2442
2443 static int snd_cs46xx_midi_output_close(struct snd_rawmidi_substream *substream)
2444 {
2445         struct snd_cs46xx *chip = substream->rmidi->private_data;
2446
2447         spin_lock_irq(&chip->reg_lock);
2448         chip->midcr &= ~(MIDCR_TXE | MIDCR_TIE);
2449         chip->midi_output = NULL;
2450         if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2451                 snd_cs46xx_midi_reset(chip);
2452         } else {
2453                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2454         }
2455         chip->uartm &= ~CS46XX_MODE_OUTPUT;
2456         spin_unlock_irq(&chip->reg_lock);
2457         chip->active_ctrl(chip, -1);
2458         return 0;
2459 }
2460
2461 static void snd_cs46xx_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
2462 {
2463         unsigned long flags;
2464         struct snd_cs46xx *chip = substream->rmidi->private_data;
2465
2466         spin_lock_irqsave(&chip->reg_lock, flags);
2467         if (up) {
2468                 if ((chip->midcr & MIDCR_RIE) == 0) {
2469                         chip->midcr |= MIDCR_RIE;
2470                         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2471                 }
2472         } else {
2473                 if (chip->midcr & MIDCR_RIE) {
2474                         chip->midcr &= ~MIDCR_RIE;
2475                         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2476                 }
2477         }
2478         spin_unlock_irqrestore(&chip->reg_lock, flags);
2479 }
2480
2481 static void snd_cs46xx_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
2482 {
2483         unsigned long flags;
2484         struct snd_cs46xx *chip = substream->rmidi->private_data;
2485         unsigned char byte;
2486
2487         spin_lock_irqsave(&chip->reg_lock, flags);
2488         if (up) {
2489                 if ((chip->midcr & MIDCR_TIE) == 0) {
2490                         chip->midcr |= MIDCR_TIE;
2491                         /* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */
2492                         while ((chip->midcr & MIDCR_TIE) &&
2493                                (snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
2494                                 if (snd_rawmidi_transmit(substream, &byte, 1) != 1) {
2495                                         chip->midcr &= ~MIDCR_TIE;
2496                                 } else {
2497                                         snd_cs46xx_pokeBA0(chip, BA0_MIDWP, byte);
2498                                 }
2499                         }
2500                         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2501                 }
2502         } else {
2503                 if (chip->midcr & MIDCR_TIE) {
2504                         chip->midcr &= ~MIDCR_TIE;
2505                         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2506                 }
2507         }
2508         spin_unlock_irqrestore(&chip->reg_lock, flags);
2509 }
2510
2511 static struct snd_rawmidi_ops snd_cs46xx_midi_output =
2512 {
2513         .open =         snd_cs46xx_midi_output_open,
2514         .close =        snd_cs46xx_midi_output_close,
2515         .trigger =      snd_cs46xx_midi_output_trigger,
2516 };
2517
2518 static struct snd_rawmidi_ops snd_cs46xx_midi_input =
2519 {
2520         .open =         snd_cs46xx_midi_input_open,
2521         .close =        snd_cs46xx_midi_input_close,
2522         .trigger =      snd_cs46xx_midi_input_trigger,
2523 };
2524
2525 int __devinit snd_cs46xx_midi(struct snd_cs46xx *chip, int device, struct snd_rawmidi **rrawmidi)
2526 {
2527         struct snd_rawmidi *rmidi;
2528         int err;
2529
2530         if (rrawmidi)
2531                 *rrawmidi = NULL;
2532         if ((err = snd_rawmidi_new(chip->card, "CS46XX", device, 1, 1, &rmidi)) < 0)
2533                 return err;
2534         strcpy(rmidi->name, "CS46XX");
2535         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_cs46xx_midi_output);
2536         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_cs46xx_midi_input);
2537         rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX;
2538         rmidi->private_data = chip;
2539         chip->rmidi = rmidi;
2540         if (rrawmidi)
2541                 *rrawmidi = NULL;
2542         return 0;
2543 }
2544
2545
2546 /*
2547  * gameport interface
2548  */
2549
2550 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
2551
2552 static void snd_cs46xx_gameport_trigger(struct gameport *gameport)
2553 {
2554         struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2555
2556         snd_assert(chip, return);
2557         snd_cs46xx_pokeBA0(chip, BA0_JSPT, 0xFF);  //outb(gameport->io, 0xFF);
2558 }
2559
2560 static unsigned char snd_cs46xx_gameport_read(struct gameport *gameport)
2561 {
2562         struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2563
2564         snd_assert(chip, return 0);
2565         return snd_cs46xx_peekBA0(chip, BA0_JSPT); //inb(gameport->io);
2566 }
2567
2568 static int snd_cs46xx_gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
2569 {
2570         struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2571         unsigned js1, js2, jst;
2572
2573         snd_assert(chip, return 0);
2574
2575         js1 = snd_cs46xx_peekBA0(chip, BA0_JSC1);
2576         js2 = snd_cs46xx_peekBA0(chip, BA0_JSC2);
2577         jst = snd_cs46xx_peekBA0(chip, BA0_JSPT);
2578         
2579         *buttons = (~jst >> 4) & 0x0F; 
2580         
2581         axes[0] = ((js1 & JSC1_Y1V_MASK) >> JSC1_Y1V_SHIFT) & 0xFFFF;
2582         axes[1] = ((js1 & JSC1_X1V_MASK) >> JSC1_X1V_SHIFT) & 0xFFFF;
2583         axes[2] = ((js2 & JSC2_Y2V_MASK) >> JSC2_Y2V_SHIFT) & 0xFFFF;
2584         axes[3] = ((js2 & JSC2_X2V_MASK) >> JSC2_X2V_SHIFT) & 0xFFFF;
2585
2586         for(jst=0;jst<4;++jst)
2587                 if(axes[jst]==0xFFFF) axes[jst] = -1;
2588         return 0;
2589 }
2590
2591 static int snd_cs46xx_gameport_open(struct gameport *gameport, int mode)
2592 {
2593         switch (mode) {
2594         case GAMEPORT_MODE_COOKED:
2595                 return 0;
2596         case GAMEPORT_MODE_RAW:
2597                 return 0;
2598         default:
2599                 return -1;
2600         }
2601         return 0;
2602 }
2603
2604 int __devinit snd_cs46xx_gameport(struct snd_cs46xx *chip)
2605 {
2606         struct gameport *gp;
2607
2608         chip->gameport = gp = gameport_allocate_port();
2609         if (!gp) {
2610                 printk(KERN_ERR "cs46xx: cannot allocate memory for gameport\n");
2611                 return -ENOMEM;
2612         }
2613
2614         gameport_set_name(gp, "CS46xx Gameport");
2615         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
2616         gameport_set_dev_parent(gp, &chip->pci->dev);
2617         gameport_set_port_data(gp, chip);
2618
2619         gp->open = snd_cs46xx_gameport_open;
2620         gp->read = snd_cs46xx_gameport_read;
2621         gp->trigger = snd_cs46xx_gameport_trigger;
2622         gp->cooked_read = snd_cs46xx_gameport_cooked_read;
2623
2624         snd_cs46xx_pokeBA0(chip, BA0_JSIO, 0xFF); // ?
2625         snd_cs46xx_pokeBA0(chip, BA0_JSCTL, JSCTL_SP_MEDIUM_SLOW);
2626
2627         gameport_register_port(gp);
2628
2629         return 0;
2630 }
2631
2632 static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip)
2633 {
2634         if (chip->gameport) {
2635                 gameport_unregister_port(chip->gameport);
2636                 chip->gameport = NULL;
2637         }
2638 }
2639 #else
2640 int __devinit snd_cs46xx_gameport(struct snd_cs46xx *chip) { return -ENOSYS; }
2641 static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip) { }
2642 #endif /* CONFIG_GAMEPORT */
2643
2644 #ifdef CONFIG_PROC_FS
2645 /*
2646  *  proc interface
2647  */
2648
2649 static long snd_cs46xx_io_read(struct snd_info_entry *entry, void *file_private_data,
2650                                struct file *file, char __user *buf,
2651                                unsigned long count, unsigned long pos)
2652 {
2653         long size;
2654         struct snd_cs46xx_region *region = entry->private_data;
2655         
2656         size = count;
2657         if (pos + (size_t)size > region->size)
2658                 size = region->size - pos;
2659         if (size > 0) {
2660                 if (copy_to_user_fromio(buf, region->remap_addr + pos, size))
2661                         return -EFAULT;
2662         }
2663         return size;
2664 }
2665
2666 static struct snd_info_entry_ops snd_cs46xx_proc_io_ops = {
2667         .read = snd_cs46xx_io_read,
2668 };
2669
2670 static int __devinit snd_cs46xx_proc_init(struct snd_card *card, struct snd_cs46xx *chip)
2671 {
2672         struct snd_info_entry *entry;
2673         int idx;
2674         
2675         for (idx = 0; idx < 5; idx++) {
2676                 struct snd_cs46xx_region *region = &chip->region.idx[idx];
2677                 if (! snd_card_proc_new(card, region->name, &entry)) {
2678                         entry->content = SNDRV_INFO_CONTENT_DATA;
2679                         entry->private_data = chip;
2680                         entry->c.ops = &snd_cs46xx_proc_io_ops;
2681                         entry->size = region->size;
2682                         entry->mode = S_IFREG | S_IRUSR;
2683                 }
2684         }
2685 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2686         cs46xx_dsp_proc_init(card, chip);
2687 #endif
2688         return 0;
2689 }
2690
2691 static int snd_cs46xx_proc_done(struct snd_cs46xx *chip)
2692 {
2693 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2694         cs46xx_dsp_proc_done(chip);
2695 #endif
2696         return 0;
2697 }
2698 #else /* !CONFIG_PROC_FS */
2699 #define snd_cs46xx_proc_init(card, chip)
2700 #define snd_cs46xx_proc_done(chip)
2701 #endif
2702
2703 /*
2704  * stop the h/w
2705  */
2706 static void snd_cs46xx_hw_stop(struct snd_cs46xx *chip)
2707 {
2708         unsigned int tmp;
2709
2710         tmp = snd_cs46xx_peek(chip, BA1_PFIE);
2711         tmp &= ~0x0000f03f;
2712         tmp |=  0x00000010;
2713         snd_cs46xx_poke(chip, BA1_PFIE, tmp);   /* playback interrupt disable */
2714
2715         tmp = snd_cs46xx_peek(chip, BA1_CIE);
2716         tmp &= ~0x0000003f;
2717         tmp |=  0x00000011;
2718         snd_cs46xx_poke(chip, BA1_CIE, tmp);    /* capture interrupt disable */
2719
2720         /*
2721          *  Stop playback DMA.
2722          */
2723         tmp = snd_cs46xx_peek(chip, BA1_PCTL);
2724         snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
2725
2726         /*
2727          *  Stop capture DMA.
2728          */
2729         tmp = snd_cs46xx_peek(chip, BA1_CCTL);
2730         snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
2731
2732         /*
2733          *  Reset the processor.
2734          */
2735         snd_cs46xx_reset(chip);
2736
2737         snd_cs46xx_proc_stop(chip);
2738
2739         /*
2740          *  Power down the PLL.
2741          */
2742         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
2743
2744         /*
2745          *  Turn off the Processor by turning off the software clock enable flag in 
2746          *  the clock control register.
2747          */
2748         tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE;
2749         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
2750 }
2751
2752
2753 static int snd_cs46xx_free(struct snd_cs46xx *chip)
2754 {
2755         int idx;
2756
2757         snd_assert(chip != NULL, return -EINVAL);
2758
2759         if (chip->active_ctrl)
2760                 chip->active_ctrl(chip, 1);
2761
2762         snd_cs46xx_remove_gameport(chip);
2763
2764         if (chip->amplifier_ctrl)
2765                 chip->amplifier_ctrl(chip, -chip->amplifier); /* force to off */
2766         
2767         snd_cs46xx_proc_done(chip);
2768
2769         if (chip->region.idx[0].resource)
2770                 snd_cs46xx_hw_stop(chip);
2771
2772         if (chip->irq >= 0)
2773                 free_irq(chip->irq, chip);
2774
2775         for (idx = 0; idx < 5; idx++) {
2776                 struct snd_cs46xx_region *region = &chip->region.idx[idx];
2777                 if (region->remap_addr)
2778                         iounmap(region->remap_addr);
2779                 release_and_free_resource(region->resource);
2780         }
2781
2782         if (chip->active_ctrl)
2783                 chip->active_ctrl(chip, -chip->amplifier);
2784         
2785 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2786         if (chip->dsp_spos_instance) {
2787                 cs46xx_dsp_spos_destroy(chip);
2788                 chip->dsp_spos_instance = NULL;
2789         }
2790 #endif
2791         
2792 #ifdef CONFIG_PM
2793         kfree(chip->saved_regs);
2794 #endif
2795
2796         pci_disable_device(chip->pci);
2797         kfree(chip);
2798         return 0;
2799 }
2800
2801 static int snd_cs46xx_dev_free(struct snd_device *device)
2802 {
2803         struct snd_cs46xx *chip = device->device_data;
2804         return snd_cs46xx_free(chip);
2805 }
2806
2807 /*
2808  *  initialize chip
2809  */
2810 static int snd_cs46xx_chip_init(struct snd_cs46xx *chip)
2811 {
2812         int timeout;
2813
2814         /* 
2815          *  First, blast the clock control register to zero so that the PLL starts
2816          *  out in a known state, and blast the master serial port control register
2817          *  to zero so that the serial ports also start out in a known state.
2818          */
2819         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
2820         snd_cs46xx_pokeBA0(chip, BA0_SERMC1, 0);
2821
2822         /*
2823          *  If we are in AC97 mode, then we must set the part to a host controlled
2824          *  AC-link.  Otherwise, we won't be able to bring up the link.
2825          */        
2826 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2827         snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0 | 
2828                            SERACC_TWO_CODECS);  /* 2.00 dual codecs */
2829         /* snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0); */ /* 2.00 codec */
2830 #else
2831         snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_1_03); /* 1.03 codec */
2832 #endif
2833
2834         /*
2835          *  Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97
2836          *  spec) and then drive it high.  This is done for non AC97 modes since
2837          *  there might be logic external to the CS461x that uses the ARST# line
2838          *  for a reset.
2839          */
2840         snd_cs46xx_pokeBA0(chip, BA0_ACCTL, 0);
2841 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2842         snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, 0);
2843 #endif
2844         udelay(50);
2845         snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_RSTN);
2846 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2847         snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_RSTN);
2848 #endif
2849     
2850         /*
2851          *  The first thing we do here is to enable sync generation.  As soon
2852          *  as we start receiving bit clock, we'll start producing the SYNC
2853          *  signal.
2854          */
2855         snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_ESYN | ACCTL_RSTN);
2856 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2857         snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_ESYN | ACCTL_RSTN);
2858 #endif
2859
2860         /*
2861          *  Now wait for a short while to allow the AC97 part to start
2862          *  generating bit clock (so we don't try to start the PLL without an
2863          *  input clock).
2864          */
2865         mdelay(10);
2866
2867         /*
2868          *  Set the serial port timing configuration, so that
2869          *  the clock control circuit gets its clock from the correct place.
2870          */
2871         snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97);
2872
2873         /*
2874          *  Write the selected clock control setup to the hardware.  Do not turn on
2875          *  SWCE yet (if requested), so that the devices clocked by the output of
2876          *  PLL are not clocked until the PLL is stable.
2877          */
2878         snd_cs46xx_pokeBA0(chip, BA0_PLLCC, PLLCC_LPF_1050_2780_KHZ | PLLCC_CDR_73_104_MHZ);
2879         snd_cs46xx_pokeBA0(chip, BA0_PLLM, 0x3a);
2880         snd_cs46xx_pokeBA0(chip, BA0_CLKCR2, CLKCR2_PDIVS_8);
2881
2882         /*
2883          *  Power up the PLL.
2884          */
2885         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP);
2886
2887         /*
2888          *  Wait until the PLL has stabilized.
2889          */
2890         msleep(100);
2891
2892         /*
2893          *  Turn on clocking of the core so that we can setup the serial ports.
2894          */
2895         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP | CLKCR1_SWCE);
2896
2897         /*
2898          * Enable FIFO  Host Bypass
2899          */
2900         snd_cs46xx_pokeBA0(chip, BA0_SERBCF, SERBCF_HBP);
2901
2902         /*
2903          *  Fill the serial port FIFOs with silence.
2904          */
2905         snd_cs46xx_clear_serial_FIFOs(chip);
2906
2907         /*
2908          *  Set the serial port FIFO pointer to the first sample in the FIFO.
2909          */
2910         /* snd_cs46xx_pokeBA0(chip, BA0_SERBSP, 0); */
2911
2912         /*
2913          *  Write the serial port configuration to the part.  The master
2914          *  enable bit is not set until all other values have been written.
2915          */
2916         snd_cs46xx_pokeBA0(chip, BA0_SERC1, SERC1_SO1F_AC97 | SERC1_SO1EN);
2917         snd_cs46xx_pokeBA0(chip, BA0_SERC2, SERC2_SI1F_AC97 | SERC1_SO1EN);
2918         snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97 | SERMC1_MSPE);
2919
2920
2921 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2922         snd_cs46xx_pokeBA0(chip, BA0_SERC7, SERC7_ASDI2EN);
2923         snd_cs46xx_pokeBA0(chip, BA0_SERC3, 0);
2924         snd_cs46xx_pokeBA0(chip, BA0_SERC4, 0);
2925         snd_cs46xx_pokeBA0(chip, BA0_SERC5, 0);
2926         snd_cs46xx_pokeBA0(chip, BA0_SERC6, 1);
2927 #endif
2928
2929         mdelay(5);
2930
2931
2932         /*
2933          * Wait for the codec ready signal from the AC97 codec.
2934          */
2935         timeout = 150;
2936         while (timeout-- > 0) {
2937                 /*
2938                  *  Read the AC97 status register to see if we've seen a CODEC READY
2939                  *  signal from the AC97 codec.
2940                  */
2941                 if (snd_cs46xx_peekBA0(chip, BA0_ACSTS) & ACSTS_CRDY)
2942                         goto ok1;
2943                 msleep(10);
2944         }
2945
2946
2947         snd_printk(KERN_ERR "create - never read codec ready from AC'97\n");
2948         snd_printk(KERN_ERR "it is not probably bug, try to use CS4236 driver\n");
2949         return -EIO;
2950  ok1:
2951 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2952         {
2953                 int count;
2954                 for (count = 0; count < 150; count++) {
2955                         /* First, we want to wait for a short time. */
2956                         udelay(25);
2957         
2958                         if (snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY)
2959                                 break;
2960                 }
2961
2962                 /*
2963                  *  Make sure CODEC is READY.
2964                  */
2965                 if (!(snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY))
2966                         snd_printdd("cs46xx: never read card ready from secondary AC'97\n");
2967         }
2968 #endif
2969
2970         /*
2971          *  Assert the vaid frame signal so that we can start sending commands
2972          *  to the AC97 codec.
2973          */
2974         snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
2975 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2976         snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
2977 #endif
2978
2979
2980         /*
2981          *  Wait until we've sampled input slots 3 and 4 as valid, meaning that
2982          *  the codec is pumping ADC data across the AC-link.
2983          */
2984         timeout = 150;
2985         while (timeout-- > 0) {
2986                 /*
2987                  *  Read the input slot valid register and see if input slots 3 and
2988                  *  4 are valid yet.
2989                  */
2990                 if ((snd_cs46xx_peekBA0(chip, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
2991                         goto ok2;
2992                 msleep(10);
2993         }
2994
2995 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2996         snd_printk(KERN_ERR "create - never read ISV3 & ISV4 from AC'97\n");
2997         return -EIO;
2998 #else
2999         /* This may happen on a cold boot with a Terratec SiXPack 5.1.
3000            Reloading the driver may help, if there's other soundcards 
3001            with the same problem I would like to know. (Benny) */
3002
3003         snd_printk(KERN_ERR "ERROR: snd-cs46xx: never read ISV3 & ISV4 from AC'97\n");
3004         snd_printk(KERN_ERR "       Try reloading the ALSA driver, if you find something\n");
3005         snd_printk(KERN_ERR "       broken or not working on your soundcard upon\n");
3006         snd_printk(KERN_ERR "       this message please report to alsa-devel@alsa-project.org\n");
3007
3008         return -EIO;
3009 #endif
3010  ok2:
3011
3012         /*
3013          *  Now, assert valid frame and the slot 3 and 4 valid bits.  This will
3014          *  commense the transfer of digital audio data to the AC97 codec.
3015          */
3016
3017         snd_cs46xx_pokeBA0(chip, BA0_ACOSV, ACOSV_SLV3 | ACOSV_SLV4);
3018
3019
3020         /*
3021          *  Power down the DAC and ADC.  We will power them up (if) when we need
3022          *  them.
3023          */
3024         /* snd_cs46xx_pokeBA0(chip, BA0_AC97_POWERDOWN, 0x300); */
3025
3026         /*
3027          *  Turn off the Processor by turning off the software clock enable flag in 
3028          *  the clock control register.
3029          */
3030         /* tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE; */
3031         /* snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp); */
3032
3033         return 0;
3034 }
3035
3036 /*
3037  *  start and load DSP 
3038  */
3039
3040 static void cs46xx_enable_stream_irqs(struct snd_cs46xx *chip)
3041 {
3042         unsigned int tmp;
3043
3044         snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_IEV | HICR_CHGM);
3045         
3046         tmp = snd_cs46xx_peek(chip, BA1_PFIE);
3047         tmp &= ~0x0000f03f;
3048         snd_cs46xx_poke(chip, BA1_PFIE, tmp);   /* playback interrupt enable */
3049
3050         tmp = snd_cs46xx_peek(chip, BA1_CIE);
3051         tmp &= ~0x0000003f;
3052         tmp |=  0x00000001;
3053         snd_cs46xx_poke(chip, BA1_CIE, tmp);    /* capture interrupt enable */
3054 }
3055
3056 int __devinit snd_cs46xx_start_dsp(struct snd_cs46xx *chip)
3057 {       
3058         unsigned int tmp;
3059         /*
3060          *  Reset the processor.
3061          */
3062         snd_cs46xx_reset(chip);
3063         /*
3064          *  Download the image to the processor.
3065          */
3066 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3067 #if 0
3068         if (cs46xx_dsp_load_module(chip, &cwcemb80_module) < 0) {
3069                 snd_printk(KERN_ERR "image download error\n");
3070                 return -EIO;
3071         }
3072 #endif
3073
3074         if (cs46xx_dsp_load_module(chip, &cwc4630_module) < 0) {
3075                 snd_printk(KERN_ERR "image download error [cwc4630]\n");
3076                 return -EIO;
3077         }
3078
3079         if (cs46xx_dsp_load_module(chip, &cwcasync_module) < 0) {
3080                 snd_printk(KERN_ERR "image download error [cwcasync]\n");
3081                 return -EIO;
3082         }
3083
3084         if (cs46xx_dsp_load_module(chip, &cwcsnoop_module) < 0) {
3085                 snd_printk(KERN_ERR "image download error [cwcsnoop]\n");
3086                 return -EIO;
3087         }
3088
3089         if (cs46xx_dsp_load_module(chip, &cwcbinhack_module) < 0) {
3090                 snd_printk(KERN_ERR "image download error [cwcbinhack]\n");
3091                 return -EIO;
3092         }
3093
3094         if (cs46xx_dsp_load_module(chip, &cwcdma_module) < 0) {
3095                 snd_printk(KERN_ERR "image download error [cwcdma]\n");
3096                 return -EIO;
3097         }
3098
3099         if (cs46xx_dsp_scb_and_task_init(chip) < 0)
3100                 return -EIO;
3101 #else
3102         /* old image */
3103         if (snd_cs46xx_download_image(chip) < 0) {
3104                 snd_printk(KERN_ERR "image download error\n");
3105                 return -EIO;
3106         }
3107
3108         /*
3109          *  Stop playback DMA.
3110          */
3111         tmp = snd_cs46xx_peek(chip, BA1_PCTL);
3112         chip->play_ctl = tmp & 0xffff0000;
3113         snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
3114 #endif
3115
3116         /*
3117          *  Stop capture DMA.
3118          */
3119         tmp = snd_cs46xx_peek(chip, BA1_CCTL);
3120         chip->capt.ctl = tmp & 0x0000ffff;
3121         snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
3122
3123         mdelay(5);
3124
3125         snd_cs46xx_set_play_sample_rate(chip, 8000);
3126         snd_cs46xx_set_capture_sample_rate(chip, 8000);
3127
3128         snd_cs46xx_proc_start(chip);
3129
3130         cs46xx_enable_stream_irqs(chip);
3131         
3132 #ifndef CONFIG_SND_CS46XX_NEW_DSP
3133         /* set the attenuation to 0dB */ 
3134         snd_cs46xx_poke(chip, BA1_PVOL, 0x80008000);
3135         snd_cs46xx_poke(chip, BA1_CVOL, 0x80008000);
3136 #endif
3137
3138         return 0;
3139 }
3140
3141
3142 /*
3143  *      AMP control - null AMP
3144  */
3145  
3146 static void amp_none(struct snd_cs46xx *chip, int change)
3147 {       
3148 }
3149
3150 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3151 static int voyetra_setup_eapd_slot(struct snd_cs46xx *chip)
3152 {
3153         
3154         u32 idx, valid_slots,tmp,powerdown = 0;
3155         u16 modem_power,pin_config,logic_type;
3156
3157         snd_printdd ("cs46xx: cs46xx_setup_eapd_slot()+\n");
3158
3159         /*
3160          *  See if the devices are powered down.  If so, we must power them up first
3161          *  or they will not respond.
3162          */
3163         tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
3164
3165         if (!(tmp & CLKCR1_SWCE)) {
3166                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
3167                 powerdown = 1;
3168         }
3169
3170         /*
3171          * Clear PRA.  The Bonzo chip will be used for GPIO not for modem
3172          * stuff.
3173          */
3174         if(chip->nr_ac97_codecs != 2) {
3175                 snd_printk (KERN_ERR "cs46xx: cs46xx_setup_eapd_slot() - no secondary codec configured\n");
3176                 return -EINVAL;
3177         }
3178
3179         modem_power = snd_cs46xx_codec_read (chip, 
3180                                              AC97_EXTENDED_MSTATUS,
3181                                              CS46XX_SECONDARY_CODEC_INDEX);
3182         modem_power &=0xFEFF;
3183
3184         snd_cs46xx_codec_write(chip, 
3185                                AC97_EXTENDED_MSTATUS, modem_power,
3186                                CS46XX_SECONDARY_CODEC_INDEX);
3187
3188         /*
3189          * Set GPIO pin's 7 and 8 so that they are configured for output.
3190          */
3191         pin_config = snd_cs46xx_codec_read (chip, 
3192                                             AC97_GPIO_CFG,
3193                                             CS46XX_SECONDARY_CODEC_INDEX);
3194         pin_config &=0x27F;
3195
3196         snd_cs46xx_codec_write(chip, 
3197                                AC97_GPIO_CFG, pin_config,
3198                                CS46XX_SECONDARY_CODEC_INDEX);
3199     
3200         /*
3201          * Set GPIO pin's 7 and 8 so that they are compatible with CMOS logic.
3202          */
3203
3204         logic_type = snd_cs46xx_codec_read(chip, AC97_GPIO_POLARITY,
3205                                            CS46XX_SECONDARY_CODEC_INDEX);
3206         logic_type &=0x27F; 
3207
3208         snd_cs46xx_codec_write (chip, AC97_GPIO_POLARITY, logic_type,
3209                                 CS46XX_SECONDARY_CODEC_INDEX);
3210
3211         valid_slots = snd_cs46xx_peekBA0(chip, BA0_ACOSV);
3212         valid_slots |= 0x200;
3213         snd_cs46xx_pokeBA0(chip, BA0_ACOSV, valid_slots);
3214
3215         if ( cs46xx_wait_for_fifo(chip,1) ) {
3216           snd_printdd("FIFO is busy\n");
3217           
3218           return -EINVAL;
3219         }
3220
3221         /*
3222          * Fill slots 12 with the correct value for the GPIO pins. 
3223          */
3224         for(idx = 0x90; idx <= 0x9F; idx++) {
3225                 /*
3226                  * Initialize the fifo so that bits 7 and 8 are on.
3227                  *
3228                  * Remember that the GPIO pins in bonzo are shifted by 4 bits to
3229                  * the left.  0x1800 corresponds to bits 7 and 8.
3230                  */
3231                 snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0x1800);
3232
3233                 /*
3234                  * Wait for command to complete
3235                  */
3236                 if ( cs46xx_wait_for_fifo(chip,200) ) {
3237                         snd_printdd("failed waiting for FIFO at addr (%02X)\n",idx);
3238
3239                         return -EINVAL;
3240                 }
3241             
3242                 /*
3243                  * Write the serial port FIFO index.
3244                  */
3245                 snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
3246       
3247                 /*
3248                  * Tell the serial port to load the new value into the FIFO location.
3249                  */
3250                 snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
3251         }
3252
3253         /* wait for last command to complete */
3254         cs46xx_wait_for_fifo(chip,200);
3255
3256         /*
3257          *  Now, if we powered up the devices, then power them back down again.
3258          *  This is kinda ugly, but should never happen.
3259          */
3260         if (powerdown)
3261                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
3262
3263         return 0;
3264 }
3265 #endif
3266
3267 /*
3268  *      Crystal EAPD mode
3269  */
3270  
3271 static void amp_voyetra(struct snd_cs46xx *chip, int change)
3272 {
3273         /* Manage the EAPD bit on the Crystal 4297 
3274            and the Analog AD1885 */
3275            
3276 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3277         int old = chip->amplifier;
3278 #endif
3279         int oval, val;
3280         
3281         chip->amplifier += change;
3282         oval = snd_cs46xx_codec_read(chip, AC97_POWERDOWN,
3283                                      CS46XX_PRIMARY_CODEC_INDEX);
3284         val = oval;
3285         if (chip->amplifier) {
3286                 /* Turn the EAPD amp on */
3287                 val |= 0x8000;
3288         } else {
3289                 /* Turn the EAPD amp off */
3290                 val &= ~0x8000;
3291         }
3292         if (val != oval) {
3293                 snd_cs46xx_codec_write(chip, AC97_POWERDOWN, val,
3294                                        CS46XX_PRIMARY_CODEC_INDEX);
3295                 if (chip->eapd_switch)
3296                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
3297                                        &chip->eapd_switch->id);
3298         }
3299
3300 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3301         if (chip->amplifier && !old) {
3302                 voyetra_setup_eapd_slot(chip);
3303         }
3304 #endif
3305 }
3306
3307 static void hercules_init(struct snd_cs46xx *chip) 
3308 {
3309         /* default: AMP off, and SPDIF input optical */
3310         snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3311         snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3312 }
3313
3314
3315 /*
3316  *      Game Theatre XP card - EGPIO[2] is used to enable the external amp.
3317  */ 
3318 static void amp_hercules(struct snd_cs46xx *chip, int change)
3319 {
3320         int old = chip->amplifier;
3321         int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
3322         int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
3323
3324         chip->amplifier += change;
3325         if (chip->amplifier && !old) {
3326                 snd_printdd ("Hercules amplifier ON\n");
3327
3328                 snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, 
3329                                    EGPIODR_GPOE2 | val1);     /* enable EGPIO2 output */
3330                 snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, 
3331                                    EGPIOPTR_GPPT2 | val2);   /* open-drain on output */
3332         } else if (old && !chip->amplifier) {
3333                 snd_printdd ("Hercules amplifier OFF\n");
3334                 snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE2); /* disable */
3335                 snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT2); /* disable */
3336         }
3337 }
3338
3339 static void voyetra_mixer_init (struct snd_cs46xx *chip)
3340 {
3341         snd_printdd ("initializing Voyetra mixer\n");
3342
3343         /* Enable SPDIF out */
3344         snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3345         snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3346 }
3347
3348 static void hercules_mixer_init (struct snd_cs46xx *chip)
3349 {
3350 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3351         unsigned int idx;
3352         int err;
3353         struct snd_card *card = chip->card;
3354 #endif
3355
3356         /* set EGPIO to default */
3357         hercules_init(chip);
3358
3359         snd_printdd ("initializing Hercules mixer\n");
3360
3361 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3362         if (chip->in_suspend)
3363                 return;
3364
3365         for (idx = 0 ; idx < ARRAY_SIZE(snd_hercules_controls); idx++) {
3366                 struct snd_kcontrol *kctl;
3367
3368                 kctl = snd_ctl_new1(&snd_hercules_controls[idx], chip);
3369                 if ((err = snd_ctl_add(card, kctl)) < 0) {
3370                         printk (KERN_ERR "cs46xx: failed to initialize Hercules mixer (%d)\n",err);
3371                         break;
3372                 }
3373         }
3374 #endif
3375 }
3376
3377
3378 #if 0
3379 /*
3380  *      Untested
3381  */
3382  
3383 static void amp_voyetra_4294(struct snd_cs46xx *chip, int change)
3384 {
3385         chip->amplifier += change;
3386
3387         if (chip->amplifier) {
3388                 /* Switch the GPIO pins 7 and 8 to open drain */
3389                 snd_cs46xx_codec_write(chip, 0x4C,
3390                                        snd_cs46xx_codec_read(chip, 0x4C) & 0xFE7F);
3391                 snd_cs46xx_codec_write(chip, 0x4E,
3392                                        snd_cs46xx_codec_read(chip, 0x4E) | 0x0180);
3393                 /* Now wake the AMP (this might be backwards) */
3394                 snd_cs46xx_codec_write(chip, 0x54,
3395                                        snd_cs46xx_codec_read(chip, 0x54) & ~0x0180);
3396         } else {
3397                 snd_cs46xx_codec_write(chip, 0x54,
3398                                        snd_cs46xx_codec_read(chip, 0x54) | 0x0180);
3399         }
3400 }
3401 #endif
3402
3403
3404 /*
3405  *      Handle the CLKRUN on a thinkpad. We must disable CLKRUN support
3406  *      whenever we need to beat on the chip.
3407  *
3408  *      The original idea and code for this hack comes from David Kaiser at
3409  *      Linuxcare. Perhaps one day Crystal will document their chips well
3410  *      enough to make them useful.
3411  */
3412  
3413 static void clkrun_hack(struct snd_cs46xx *chip, int change)
3414 {
3415         u16 control, nval;
3416         
3417         if (!chip->acpi_port)
3418                 return;
3419
3420         chip->amplifier += change;
3421         
3422         /* Read ACPI port */    
3423         nval = control = inw(chip->acpi_port + 0x10);
3424
3425         /* Flip CLKRUN off while running */
3426         if (! chip->amplifier)
3427                 nval |= 0x2000;
3428         else
3429                 nval &= ~0x2000;
3430         if (nval != control)
3431                 outw(nval, chip->acpi_port + 0x10);
3432 }
3433
3434         
3435 /*
3436  * detect intel piix4
3437  */
3438 static void clkrun_init(struct snd_cs46xx *chip)
3439 {
3440         struct pci_dev *pdev;
3441         u8 pp;
3442
3443         chip->acpi_port = 0;
3444         
3445         pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
3446                 PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3447         if (pdev == NULL)
3448                 return;         /* Not a thinkpad thats for sure */
3449
3450         /* Find the control port */             
3451         pci_read_config_byte(pdev, 0x41, &pp);
3452         chip->acpi_port = pp << 8;
3453         pci_dev_put(pdev);
3454 }
3455
3456
3457 /*
3458  * Card subid table
3459  */
3460  
3461 struct cs_card_type
3462 {
3463         u16 vendor;
3464         u16 id;
3465         char *name;
3466         void (*init)(struct snd_cs46xx *);
3467         void (*amp)(struct snd_cs46xx *, int);
3468         void (*active)(struct snd_cs46xx *, int);
3469         void (*mixer_init)(struct snd_cs46xx *);
3470 };
3471
3472 static struct cs_card_type __devinitdata cards[] = {
3473         {
3474                 .vendor = 0x1489,
3475                 .id = 0x7001,
3476                 .name = "Genius Soundmaker 128 value",
3477                 /* nothing special */
3478         },
3479         {
3480                 .vendor = 0x5053,
3481                 .id = 0x3357,
3482                 .name = "Voyetra",
3483                 .amp = amp_voyetra,
3484                 .mixer_init = voyetra_mixer_init,
3485         },
3486         {
3487                 .vendor = 0x1071,
3488                 .id = 0x6003,
3489                 .name = "Mitac MI6020/21",
3490                 .amp = amp_voyetra,
3491         },
3492         {
3493                 .vendor = 0x14AF,
3494                 .id = 0x0050,
3495                 .name = "Hercules Game Theatre XP",
3496                 .amp = amp_hercules,
3497                 .mixer_init = hercules_mixer_init,
3498         },
3499         {
3500                 .vendor = 0x1681,
3501                 .id = 0x0050,
3502                 .name = "Hercules Game Theatre XP",
3503                 .amp = amp_hercules,
3504                 .mixer_init = hercules_mixer_init,
3505         },
3506         {
3507                 .vendor = 0x1681,
3508                 .id = 0x0051,
3509                 .name = "Hercules Game Theatre XP",
3510                 .amp = amp_hercules,
3511                 .mixer_init = hercules_mixer_init,
3512
3513         },
3514         {
3515                 .vendor = 0x1681,
3516                 .id = 0x0052,
3517                 .name = "Hercules Game Theatre XP",
3518                 .amp = amp_hercules,
3519                 .mixer_init = hercules_mixer_init,
3520         },
3521         {
3522                 .vendor = 0x1681,
3523                 .id = 0x0053,
3524                 .name = "Hercules Game Theatre XP",
3525                 .amp = amp_hercules,
3526                 .mixer_init = hercules_mixer_init,
3527         },
3528         {
3529                 .vendor = 0x1681,
3530                 .id = 0x0054,
3531                 .name = "Hercules Game Theatre XP",
3532                 .amp = amp_hercules,
3533                 .mixer_init = hercules_mixer_init,
3534         },
3535         /* Teratec */
3536         {
3537                 .vendor = 0x153b,
3538                 .id = 0x1136,
3539                 .name = "Terratec SiXPack 5.1",
3540         },
3541         /* Not sure if the 570 needs the clkrun hack */
3542         {
3543                 .vendor = PCI_VENDOR_ID_IBM,
3544                 .id = 0x0132,
3545                 .name = "Thinkpad 570",
3546                 .init = clkrun_init,
3547                 .active = clkrun_hack,
3548         },
3549         {
3550                 .vendor = PCI_VENDOR_ID_IBM,
3551                 .id = 0x0153,
3552                 .name = "Thinkpad 600X/A20/T20",
3553                 .init = clkrun_init,
3554                 .active = clkrun_hack,
3555         },
3556         {
3557                 .vendor = PCI_VENDOR_ID_IBM,
3558                 .id = 0x1010,
3559                 .name = "Thinkpad 600E (unsupported)",
3560         },
3561         {} /* terminator */
3562 };
3563
3564
3565 /*
3566  * APM support
3567  */
3568 #ifdef CONFIG_PM
3569 static unsigned int saved_regs[] = {
3570         BA0_ACOSV,
3571         BA0_ASER_FADDR,
3572         BA0_ASER_MASTER,
3573         BA1_PVOL,
3574         BA1_CVOL,
3575 };
3576
3577 int snd_cs46xx_suspend(struct pci_dev *pci, pm_message_t state)
3578 {
3579         struct snd_card *card = pci_get_drvdata(pci);
3580         struct snd_cs46xx *chip = card->private_data;
3581         int i, amp_saved;
3582
3583         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
3584         chip->in_suspend = 1;
3585         snd_pcm_suspend_all(chip->pcm);
3586         // chip->ac97_powerdown = snd_cs46xx_codec_read(chip, AC97_POWER_CONTROL);
3587         // chip->ac97_general_purpose = snd_cs46xx_codec_read(chip, BA0_AC97_GENERAL_PURPOSE);
3588
3589         snd_ac97_suspend(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3590         snd_ac97_suspend(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3591
3592         /* save some registers */
3593         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
3594                 chip->saved_regs[i] = snd_cs46xx_peekBA0(chip, saved_regs[i]);
3595
3596         amp_saved = chip->amplifier;
3597         /* turn off amp */
3598         chip->amplifier_ctrl(chip, -chip->amplifier);
3599         snd_cs46xx_hw_stop(chip);
3600         /* disable CLKRUN */
3601         chip->active_ctrl(chip, -chip->amplifier);
3602         chip->amplifier = amp_saved; /* restore the status */
3603
3604         pci_disable_device(pci);
3605         pci_save_state(pci);
3606         pci_set_power_state(pci, pci_choose_state(pci, state));
3607         return 0;
3608 }
3609
3610 int snd_cs46xx_resume(struct pci_dev *pci)
3611 {
3612         struct snd_card *card = pci_get_drvdata(pci);
3613         struct snd_cs46xx *chip = card->private_data;
3614         int i, amp_saved;
3615
3616         pci_set_power_state(pci, PCI_D0);
3617         pci_restore_state(pci);
3618         if (pci_enable_device(pci) < 0) {
3619                 printk(KERN_ERR "cs46xx: pci_enable_device failed, "
3620                        "disabling device\n");
3621                 snd_card_disconnect(card);
3622                 return -EIO;
3623         }
3624         pci_set_master(pci);
3625
3626         amp_saved = chip->amplifier;
3627         chip->amplifier = 0;
3628         chip->active_ctrl(chip, 1); /* force to on */
3629
3630         snd_cs46xx_chip_init(chip);
3631
3632         snd_cs46xx_reset(chip);
3633 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3634         cs46xx_dsp_resume(chip);
3635         /* restore some registers */
3636         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
3637                 snd_cs46xx_pokeBA0(chip, saved_regs[i], chip->saved_regs[i]);
3638 #else
3639         snd_cs46xx_download_image(chip);
3640 #endif
3641
3642 #if 0
3643         snd_cs46xx_codec_write(chip, BA0_AC97_GENERAL_PURPOSE, 
3644                                chip->ac97_general_purpose);
3645         snd_cs46xx_codec_write(chip, AC97_POWER_CONTROL, 
3646                                chip->ac97_powerdown);
3647         mdelay(10);
3648         snd_cs46xx_codec_write(chip, BA0_AC97_POWERDOWN,
3649                                chip->ac97_powerdown);
3650         mdelay(5);
3651 #endif
3652
3653         snd_ac97_resume(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3654         snd_ac97_resume(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3655
3656         /* reset playback/capture */
3657         snd_cs46xx_set_play_sample_rate(chip, 8000);
3658         snd_cs46xx_set_capture_sample_rate(chip, 8000);
3659         snd_cs46xx_proc_start(chip);
3660
3661         cs46xx_enable_stream_irqs(chip);
3662
3663         if (amp_saved)
3664                 chip->amplifier_ctrl(chip, 1); /* turn amp on */
3665         else
3666                 chip->active_ctrl(chip, -1); /* disable CLKRUN */
3667         chip->amplifier = amp_saved;
3668         chip->in_suspend = 0;
3669         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
3670         return 0;
3671 }
3672 #endif /* CONFIG_PM */
3673
3674
3675 /*
3676  */
3677
3678 int __devinit snd_cs46xx_create(struct snd_card *card,
3679                       struct pci_dev * pci,
3680                       int external_amp, int thinkpad,
3681                       struct snd_cs46xx ** rchip)
3682 {
3683         struct snd_cs46xx *chip;
3684         int err, idx;
3685         struct snd_cs46xx_region *region;
3686         struct cs_card_type *cp;
3687         u16 ss_card, ss_vendor;
3688         static struct snd_device_ops ops = {
3689                 .dev_free =     snd_cs46xx_dev_free,
3690         };
3691         
3692         *rchip = NULL;
3693
3694         /* enable PCI device */
3695         if ((err = pci_enable_device(pci)) < 0)
3696                 return err;
3697
3698         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
3699         if (chip == NULL) {
3700                 pci_disable_device(pci);
3701                 return -ENOMEM;
3702         }
3703         spin_lock_init(&chip->reg_lock);
3704 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3705         mutex_init(&chip->spos_mutex);
3706 #endif
3707         chip->card = card;
3708         chip->pci = pci;
3709         chip->irq = -1;
3710         chip->ba0_addr = pci_resource_start(pci, 0);
3711         chip->ba1_addr = pci_resource_start(pci, 1);
3712         if (chip->ba0_addr == 0 || chip->ba0_addr == (unsigned long)~0 ||
3713             chip->ba1_addr == 0 || chip->ba1_addr == (unsigned long)~0) {
3714                 snd_printk(KERN_ERR "wrong address(es) - ba0 = 0x%lx, ba1 = 0x%lx\n",
3715                            chip->ba0_addr, chip->ba1_addr);
3716                 snd_cs46xx_free(chip);
3717                 return -ENOMEM;
3718         }
3719
3720         region = &chip->region.name.ba0;
3721         strcpy(region->name, "CS46xx_BA0");
3722         region->base = chip->ba0_addr;
3723         region->size = CS46XX_BA0_SIZE;
3724
3725         region = &chip->region.name.data0;
3726         strcpy(region->name, "CS46xx_BA1_data0");
3727         region->base = chip->ba1_addr + BA1_SP_DMEM0;
3728         region->size = CS46XX_BA1_DATA0_SIZE;
3729
3730         region = &chip->region.name.data1;
3731         strcpy(region->name, "CS46xx_BA1_data1");
3732         region->base = chip->ba1_addr + BA1_SP_DMEM1;
3733         region->size = CS46XX_BA1_DATA1_SIZE;
3734
3735         region = &chip->region.name.pmem;
3736         strcpy(region->name, "CS46xx_BA1_pmem");
3737         region->base = chip->ba1_addr + BA1_SP_PMEM;
3738         region->size = CS46XX_BA1_PRG_SIZE;
3739
3740         region = &chip->region.name.reg;
3741         strcpy(region->name, "CS46xx_BA1_reg");
3742         region->base = chip->ba1_addr + BA1_SP_REG;
3743         region->size = CS46XX_BA1_REG_SIZE;
3744
3745         /* set up amp and clkrun hack */
3746         pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &ss_vendor);
3747         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &ss_card);
3748
3749         for (cp = &cards[0]; cp->name; cp++) {
3750                 if (cp->vendor == ss_vendor && cp->id == ss_card) {
3751                         snd_printdd ("hack for %s enabled\n", cp->name);
3752
3753                         chip->amplifier_ctrl = cp->amp;
3754                         chip->active_ctrl = cp->active;
3755                         chip->mixer_init = cp->mixer_init;
3756
3757                         if (cp->init)
3758                                 cp->init(chip);
3759                         break;
3760                 }
3761         }
3762
3763         if (external_amp) {
3764                 snd_printk(KERN_INFO "Crystal EAPD support forced on.\n");
3765                 chip->amplifier_ctrl = amp_voyetra;
3766         }
3767
3768         if (thinkpad) {
3769                 snd_printk(KERN_INFO "Activating CLKRUN hack for Thinkpad.\n");
3770                 chip->active_ctrl = clkrun_hack;
3771                 clkrun_init(chip);
3772         }
3773         
3774         if (chip->amplifier_ctrl == NULL)
3775                 chip->amplifier_ctrl = amp_none;
3776         if (chip->active_ctrl == NULL)
3777                 chip->active_ctrl = amp_none;
3778
3779         chip->active_ctrl(chip, 1); /* enable CLKRUN */
3780
3781         pci_set_master(pci);
3782
3783         for (idx = 0; idx < 5; idx++) {
3784                 region = &chip->region.idx[idx];
3785                 if ((region->resource = request_mem_region(region->base, region->size,
3786                                                            region->name)) == NULL) {
3787                         snd_printk(KERN_ERR "unable to request memory region 0x%lx-0x%lx\n",
3788                                    region->base, region->base + region->size - 1);
3789                         snd_cs46xx_free(chip);
3790                         return -EBUSY;
3791                 }
3792                 region->remap_addr = ioremap_nocache(region->base, region->size);
3793                 if (region->remap_addr == NULL) {
3794                         snd_printk(KERN_ERR "%s ioremap problem\n", region->name);
3795                         snd_cs46xx_free(chip);
3796                         return -ENOMEM;
3797                 }
3798         }
3799
3800         if (request_irq(pci->irq, snd_cs46xx_interrupt, IRQF_SHARED,
3801                         "CS46XX", chip)) {
3802                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
3803                 snd_cs46xx_free(chip);
3804                 return -EBUSY;
3805         }
3806         chip->irq = pci->irq;
3807
3808 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3809         chip->dsp_spos_instance = cs46xx_dsp_spos_create(chip);
3810         if (chip->dsp_spos_instance == NULL) {
3811                 snd_cs46xx_free(chip);
3812                 return -ENOMEM;
3813         }
3814 #endif
3815
3816         err = snd_cs46xx_chip_init(chip);
3817         if (err < 0) {
3818                 snd_cs46xx_free(chip);
3819                 return err;
3820         }
3821
3822         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
3823                 snd_cs46xx_free(chip);
3824                 return err;
3825         }
3826         
3827         snd_cs46xx_proc_init(card, chip);
3828
3829 #ifdef CONFIG_PM
3830         chip->saved_regs = kmalloc(sizeof(*chip->saved_regs) *
3831                                    ARRAY_SIZE(saved_regs), GFP_KERNEL);
3832         if (!chip->saved_regs) {
3833                 snd_cs46xx_free(chip);
3834                 return -ENOMEM;
3835         }
3836 #endif
3837
3838         chip->active_ctrl(chip, -1); /* disable CLKRUN */
3839
3840         snd_card_set_dev(card, &pci->dev);
3841
3842         *rchip = chip;
3843         return 0;
3844 }