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TOMOYO Linux Cross Reference
Linux/sound/pci/cs46xx/cs46xx_lib.c

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  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  4  *                   Abramo Bagnara <abramo@alsa-project.org>
  5  *                   Cirrus Logic, Inc.
  6  *  Routines for control of Cirrus Logic CS461x chips
  7  *
  8  *  KNOWN BUGS:
  9  *    - Sometimes the SPDIF input DSP tasks get's unsynchronized
 10  *      and the SPDIF get somewhat "distorcionated", or/and left right channel
 11  *      are swapped. To get around this problem when it happens, mute and unmute 
 12  *      the SPDIF input mixer control.
 13  *    - On the Hercules Game Theater XP the amplifier are sometimes turned
 14  *      off on inadecuate moments which causes distorcions on sound.
 15  *
 16  *  TODO:
 17  *    - Secondary CODEC on some soundcards
 18  *    - SPDIF input support for other sample rates then 48khz
 19  *    - Posibility to mix the SPDIF output with analog sources.
 20  *    - PCM channels for Center and LFE on secondary codec
 21  *
 22  *  NOTE: with CONFIG_SND_CS46XX_NEW_DSP unset uses old DSP image (which
 23  *        is default configuration), no SPDIF, no secondary codec, no
 24  *        multi channel PCM.  But known to work.
 25  *
 26  *  FINALLY: A credit to the developers Tom and Jordan 
 27  *           at Cirrus for have helping me out with the DSP, however we
 28  *           still don't have sufficient documentation and technical
 29  *           references to be able to implement all fancy feutures
 30  *           supported by the cs46xx DSP's. 
 31  *           Benny <benny@hostmobility.com>
 32  */
 33 
 34 #include <linux/delay.h>
 35 #include <linux/pci.h>
 36 #include <linux/pm.h>
 37 #include <linux/init.h>
 38 #include <linux/interrupt.h>
 39 #include <linux/slab.h>
 40 #include <linux/gameport.h>
 41 #include <linux/mutex.h>
 42 #include <linux/export.h>
 43 #include <linux/module.h>
 44 #include <linux/firmware.h>
 45 #include <linux/vmalloc.h>
 46 #include <linux/io.h>
 47 
 48 #include <sound/core.h>
 49 #include <sound/control.h>
 50 #include <sound/info.h>
 51 #include <sound/pcm.h>
 52 #include <sound/pcm_params.h>
 53 #include "cs46xx.h"
 54 
 55 #include "cs46xx_lib.h"
 56 #include "dsp_spos.h"
 57 
 58 static void amp_voyetra(struct snd_cs46xx *chip, int change);
 59 
 60 #ifdef CONFIG_SND_CS46XX_NEW_DSP
 61 static const struct snd_pcm_ops snd_cs46xx_playback_rear_ops;
 62 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops;
 63 static const struct snd_pcm_ops snd_cs46xx_playback_clfe_ops;
 64 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops;
 65 static const struct snd_pcm_ops snd_cs46xx_playback_iec958_ops;
 66 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops;
 67 #endif
 68 
 69 static const struct snd_pcm_ops snd_cs46xx_playback_ops;
 70 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_ops;
 71 static const struct snd_pcm_ops snd_cs46xx_capture_ops;
 72 static const struct snd_pcm_ops snd_cs46xx_capture_indirect_ops;
 73 
 74 static unsigned short snd_cs46xx_codec_read(struct snd_cs46xx *chip,
 75                                             unsigned short reg,
 76                                             int codec_index)
 77 {
 78         int count;
 79         unsigned short result,tmp;
 80         u32 offset = 0;
 81 
 82         if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
 83                        codec_index != CS46XX_SECONDARY_CODEC_INDEX))
 84                 return 0xffff;
 85 
 86         chip->active_ctrl(chip, 1);
 87 
 88         if (codec_index == CS46XX_SECONDARY_CODEC_INDEX)
 89                 offset = CS46XX_SECONDARY_CODEC_OFFSET;
 90 
 91         /*
 92          *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
 93          *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97 
 94          *  3. Write ACCTL = Control Register = 460h for initiating the write7---55
 95          *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h
 96          *  5. if DCV not cleared, break and return error
 97          *  6. Read ACSTS = Status Register = 464h, check VSTS bit
 98          */
 99 
100         snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
101 
102         tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL);
103         if ((tmp & ACCTL_VFRM) == 0) {
104                 dev_warn(chip->card->dev, "ACCTL_VFRM not set 0x%x\n", tmp);
105                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, (tmp & (~ACCTL_ESYN)) | ACCTL_VFRM );
106                 msleep(50);
107                 tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL + offset);
108                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, tmp | ACCTL_ESYN | ACCTL_VFRM );
109 
110         }
111 
112         /*
113          *  Setup the AC97 control registers on the CS461x to send the
114          *  appropriate command to the AC97 to perform the read.
115          *  ACCAD = Command Address Register = 46Ch
116          *  ACCDA = Command Data Register = 470h
117          *  ACCTL = Control Register = 460h
118          *  set DCV - will clear when process completed
119          *  set CRW - Read command
120          *  set VFRM - valid frame enabled
121          *  set ESYN - ASYNC generation enabled
122          *  set RSTN - ARST# inactive, AC97 codec not reset
123          */
124 
125         snd_cs46xx_pokeBA0(chip, BA0_ACCAD, reg);
126         snd_cs46xx_pokeBA0(chip, BA0_ACCDA, 0);
127         if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
128                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL,/* clear ACCTL_DCV */ ACCTL_CRW | 
129                                    ACCTL_VFRM | ACCTL_ESYN |
130                                    ACCTL_RSTN);
131                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_CRW |
132                                    ACCTL_VFRM | ACCTL_ESYN |
133                                    ACCTL_RSTN);
134         } else {
135                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
136                                    ACCTL_CRW | ACCTL_VFRM | ACCTL_ESYN |
137                                    ACCTL_RSTN);
138         }
139 
140         /*
141          *  Wait for the read to occur.
142          */
143         for (count = 0; count < 1000; count++) {
144                 /*
145                  *  First, we want to wait for a short time.
146                  */
147                 udelay(10);
148                 /*
149                  *  Now, check to see if the read has completed.
150                  *  ACCTL = 460h, DCV should be reset by now and 460h = 17h
151                  */
152                 if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV))
153                         goto ok1;
154         }
155 
156         dev_err(chip->card->dev,
157                 "AC'97 read problem (ACCTL_DCV), reg = 0x%x\n", reg);
158         result = 0xffff;
159         goto end;
160         
161  ok1:
162         /*
163          *  Wait for the valid status bit to go active.
164          */
165         for (count = 0; count < 100; count++) {
166                 /*
167                  *  Read the AC97 status register.
168                  *  ACSTS = Status Register = 464h
169                  *  VSTS - Valid Status
170                  */
171                 if (snd_cs46xx_peekBA0(chip, BA0_ACSTS + offset) & ACSTS_VSTS)
172                         goto ok2;
173                 udelay(10);
174         }
175         
176         dev_err(chip->card->dev,
177                 "AC'97 read problem (ACSTS_VSTS), codec_index %d, reg = 0x%x\n",
178                 codec_index, reg);
179         result = 0xffff;
180         goto end;
181 
182  ok2:
183         /*
184          *  Read the data returned from the AC97 register.
185          *  ACSDA = Status Data Register = 474h
186          */
187 #if 0
188         dev_dbg(chip->card->dev,
189                 "e) reg = 0x%x, val = 0x%x, BA0_ACCAD = 0x%x\n", reg,
190                         snd_cs46xx_peekBA0(chip, BA0_ACSDA),
191                         snd_cs46xx_peekBA0(chip, BA0_ACCAD));
192 #endif
193 
194         //snd_cs46xx_peekBA0(chip, BA0_ACCAD);
195         result = snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
196  end:
197         chip->active_ctrl(chip, -1);
198         return result;
199 }
200 
201 static unsigned short snd_cs46xx_ac97_read(struct snd_ac97 * ac97,
202                                             unsigned short reg)
203 {
204         struct snd_cs46xx *chip = ac97->private_data;
205         unsigned short val;
206         int codec_index = ac97->num;
207 
208         if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
209                        codec_index != CS46XX_SECONDARY_CODEC_INDEX))
210                 return 0xffff;
211 
212         val = snd_cs46xx_codec_read(chip, reg, codec_index);
213 
214         return val;
215 }
216 
217 
218 static void snd_cs46xx_codec_write(struct snd_cs46xx *chip,
219                                    unsigned short reg,
220                                    unsigned short val,
221                                    int codec_index)
222 {
223         int count;
224 
225         if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
226                        codec_index != CS46XX_SECONDARY_CODEC_INDEX))
227                 return;
228 
229         chip->active_ctrl(chip, 1);
230 
231         /*
232          *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
233          *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97
234          *  3. Write ACCTL = Control Register = 460h for initiating the write
235          *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h
236          *  5. if DCV not cleared, break and return error
237          */
238 
239         /*
240          *  Setup the AC97 control registers on the CS461x to send the
241          *  appropriate command to the AC97 to perform the read.
242          *  ACCAD = Command Address Register = 46Ch
243          *  ACCDA = Command Data Register = 470h
244          *  ACCTL = Control Register = 460h
245          *  set DCV - will clear when process completed
246          *  reset CRW - Write command
247          *  set VFRM - valid frame enabled
248          *  set ESYN - ASYNC generation enabled
249          *  set RSTN - ARST# inactive, AC97 codec not reset
250          */
251         snd_cs46xx_pokeBA0(chip, BA0_ACCAD , reg);
252         snd_cs46xx_pokeBA0(chip, BA0_ACCDA , val);
253         snd_cs46xx_peekBA0(chip, BA0_ACCTL);
254 
255         if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
256                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, /* clear ACCTL_DCV */ ACCTL_VFRM |
257                                    ACCTL_ESYN | ACCTL_RSTN);
258                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_VFRM |
259                                    ACCTL_ESYN | ACCTL_RSTN);
260         } else {
261                 snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
262                                    ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
263         }
264 
265         for (count = 0; count < 4000; count++) {
266                 /*
267                  *  First, we want to wait for a short time.
268                  */
269                 udelay(10);
270                 /*
271                  *  Now, check to see if the write has completed.
272                  *  ACCTL = 460h, DCV should be reset by now and 460h = 07h
273                  */
274                 if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV)) {
275                         goto end;
276                 }
277         }
278         dev_err(chip->card->dev,
279                 "AC'97 write problem, codec_index = %d, reg = 0x%x, val = 0x%x\n",
280                 codec_index, reg, val);
281  end:
282         chip->active_ctrl(chip, -1);
283 }
284 
285 static void snd_cs46xx_ac97_write(struct snd_ac97 *ac97,
286                                    unsigned short reg,
287                                    unsigned short val)
288 {
289         struct snd_cs46xx *chip = ac97->private_data;
290         int codec_index = ac97->num;
291 
292         if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
293                        codec_index != CS46XX_SECONDARY_CODEC_INDEX))
294                 return;
295 
296         snd_cs46xx_codec_write(chip, reg, val, codec_index);
297 }
298 
299 
300 /*
301  *  Chip initialization
302  */
303 
304 int snd_cs46xx_download(struct snd_cs46xx *chip,
305                         u32 *src,
306                         unsigned long offset,
307                         unsigned long len)
308 {
309         void __iomem *dst;
310         unsigned int bank = offset >> 16;
311         offset = offset & 0xffff;
312 
313         if (snd_BUG_ON((offset & 3) || (len & 3)))
314                 return -EINVAL;
315         dst = chip->region.idx[bank+1].remap_addr + offset;
316         len /= sizeof(u32);
317 
318         /* writel already converts 32-bit value to right endianess */
319         while (len-- > 0) {
320                 writel(*src++, dst);
321                 dst += sizeof(u32);
322         }
323         return 0;
324 }
325 
326 static inline void memcpy_le32(void *dst, const void *src, unsigned int len)
327 {
328 #ifdef __LITTLE_ENDIAN
329         memcpy(dst, src, len);
330 #else
331         u32 *_dst = dst;
332         const __le32 *_src = src;
333         len /= 4;
334         while (len-- > 0)
335                 *_dst++ = le32_to_cpu(*_src++);
336 #endif
337 }
338 
339 #ifdef CONFIG_SND_CS46XX_NEW_DSP
340 
341 static const char *module_names[CS46XX_DSP_MODULES] = {
342         "cwc4630", "cwcasync", "cwcsnoop", "cwcbinhack", "cwcdma"
343 };
344 
345 MODULE_FIRMWARE("cs46xx/cwc4630");
346 MODULE_FIRMWARE("cs46xx/cwcasync");
347 MODULE_FIRMWARE("cs46xx/cwcsnoop");
348 MODULE_FIRMWARE("cs46xx/cwcbinhack");
349 MODULE_FIRMWARE("cs46xx/cwcdma");
350 
351 static void free_module_desc(struct dsp_module_desc *module)
352 {
353         if (!module)
354                 return;
355         kfree(module->module_name);
356         kfree(module->symbol_table.symbols);
357         if (module->segments) {
358                 int i;
359                 for (i = 0; i < module->nsegments; i++)
360                         kfree(module->segments[i].data);
361                 kfree(module->segments);
362         }
363         kfree(module);
364 }
365 
366 /* firmware binary format:
367  * le32 nsymbols;
368  * struct {
369  *      le32 address;
370  *      char symbol_name[DSP_MAX_SYMBOL_NAME];
371  *      le32 symbol_type;
372  * } symbols[nsymbols];
373  * le32 nsegments;
374  * struct {
375  *      le32 segment_type;
376  *      le32 offset;
377  *      le32 size;
378  *      le32 data[size];
379  * } segments[nsegments];
380  */
381 
382 static int load_firmware(struct snd_cs46xx *chip,
383                          struct dsp_module_desc **module_ret,
384                          const char *fw_name)
385 {
386         int i, err;
387         unsigned int nums, fwlen, fwsize;
388         const __le32 *fwdat;
389         struct dsp_module_desc *module = NULL;
390         const struct firmware *fw;
391         char fw_path[32];
392 
393         sprintf(fw_path, "cs46xx/%s", fw_name);
394         err = request_firmware(&fw, fw_path, &chip->pci->dev);
395         if (err < 0)
396                 return err;
397         fwsize = fw->size / 4;
398         if (fwsize < 2) {
399                 err = -EINVAL;
400                 goto error;
401         }
402 
403         err = -ENOMEM;
404         module = kzalloc(sizeof(*module), GFP_KERNEL);
405         if (!module)
406                 goto error;
407         module->module_name = kstrdup(fw_name, GFP_KERNEL);
408         if (!module->module_name)
409                 goto error;
410 
411         fwlen = 0;
412         fwdat = (const __le32 *)fw->data;
413         nums = module->symbol_table.nsymbols = le32_to_cpu(fwdat[fwlen++]);
414         if (nums >= 40)
415                 goto error_inval;
416         module->symbol_table.symbols =
417                 kcalloc(nums, sizeof(struct dsp_symbol_entry), GFP_KERNEL);
418         if (!module->symbol_table.symbols)
419                 goto error;
420         for (i = 0; i < nums; i++) {
421                 struct dsp_symbol_entry *entry =
422                         &module->symbol_table.symbols[i];
423                 if (fwlen + 2 + DSP_MAX_SYMBOL_NAME / 4 > fwsize)
424                         goto error_inval;
425                 entry->address = le32_to_cpu(fwdat[fwlen++]);
426                 memcpy(entry->symbol_name, &fwdat[fwlen], DSP_MAX_SYMBOL_NAME - 1);
427                 fwlen += DSP_MAX_SYMBOL_NAME / 4;
428                 entry->symbol_type = le32_to_cpu(fwdat[fwlen++]);
429         }
430 
431         if (fwlen >= fwsize)
432                 goto error_inval;
433         nums = module->nsegments = le32_to_cpu(fwdat[fwlen++]);
434         if (nums > 10)
435                 goto error_inval;
436         module->segments =
437                 kcalloc(nums, sizeof(struct dsp_segment_desc), GFP_KERNEL);
438         if (!module->segments)
439                 goto error;
440         for (i = 0; i < nums; i++) {
441                 struct dsp_segment_desc *entry = &module->segments[i];
442                 if (fwlen + 3 > fwsize)
443                         goto error_inval;
444                 entry->segment_type = le32_to_cpu(fwdat[fwlen++]);
445                 entry->offset = le32_to_cpu(fwdat[fwlen++]);
446                 entry->size = le32_to_cpu(fwdat[fwlen++]);
447                 if (fwlen + entry->size > fwsize)
448                         goto error_inval;
449                 entry->data = kmalloc_array(entry->size, 4, GFP_KERNEL);
450                 if (!entry->data)
451                         goto error;
452                 memcpy_le32(entry->data, &fwdat[fwlen], entry->size * 4);
453                 fwlen += entry->size;
454         }
455 
456         *module_ret = module;
457         release_firmware(fw);
458         return 0;
459 
460  error_inval:
461         err = -EINVAL;
462  error:
463         free_module_desc(module);
464         release_firmware(fw);
465         return err;
466 }
467 
468 int snd_cs46xx_clear_BA1(struct snd_cs46xx *chip,
469                          unsigned long offset,
470                          unsigned long len) 
471 {
472         void __iomem *dst;
473         unsigned int bank = offset >> 16;
474         offset = offset & 0xffff;
475 
476         if (snd_BUG_ON((offset & 3) || (len & 3)))
477                 return -EINVAL;
478         dst = chip->region.idx[bank+1].remap_addr + offset;
479         len /= sizeof(u32);
480 
481         /* writel already converts 32-bit value to right endianess */
482         while (len-- > 0) {
483                 writel(0, dst);
484                 dst += sizeof(u32);
485         }
486         return 0;
487 }
488 
489 #else /* old DSP image */
490 
491 struct ba1_struct {
492         struct {
493                 u32 offset;
494                 u32 size;
495         } memory[BA1_MEMORY_COUNT];
496         u32 map[BA1_DWORD_SIZE];
497 };
498 
499 MODULE_FIRMWARE("cs46xx/ba1");
500 
501 static int load_firmware(struct snd_cs46xx *chip)
502 {
503         const struct firmware *fw;
504         int i, size, err;
505 
506         err = request_firmware(&fw, "cs46xx/ba1", &chip->pci->dev);
507         if (err < 0)
508                 return err;
509         if (fw->size != sizeof(*chip->ba1)) {
510                 err = -EINVAL;
511                 goto error;
512         }
513 
514         chip->ba1 = vmalloc(sizeof(*chip->ba1));
515         if (!chip->ba1) {
516                 err = -ENOMEM;
517                 goto error;
518         }
519 
520         memcpy_le32(chip->ba1, fw->data, sizeof(*chip->ba1));
521 
522         /* sanity check */
523         size = 0;
524         for (i = 0; i < BA1_MEMORY_COUNT; i++)
525                 size += chip->ba1->memory[i].size;
526         if (size > BA1_DWORD_SIZE * 4)
527                 err = -EINVAL;
528 
529  error:
530         release_firmware(fw);
531         return err;
532 }
533 
534 int snd_cs46xx_download_image(struct snd_cs46xx *chip)
535 {
536         int idx, err;
537         unsigned int offset = 0;
538         struct ba1_struct *ba1 = chip->ba1;
539 
540         for (idx = 0; idx < BA1_MEMORY_COUNT; idx++) {
541                 err = snd_cs46xx_download(chip,
542                                           &ba1->map[offset],
543                                           ba1->memory[idx].offset,
544                                           ba1->memory[idx].size);
545                 if (err < 0)
546                         return err;
547                 offset += ba1->memory[idx].size >> 2;
548         }       
549         return 0;
550 }
551 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
552 
553 /*
554  *  Chip reset
555  */
556 
557 static void snd_cs46xx_reset(struct snd_cs46xx *chip)
558 {
559         int idx;
560 
561         /*
562          *  Write the reset bit of the SP control register.
563          */
564         snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RSTSP);
565 
566         /*
567          *  Write the control register.
568          */
569         snd_cs46xx_poke(chip, BA1_SPCR, SPCR_DRQEN);
570 
571         /*
572          *  Clear the trap registers.
573          */
574         for (idx = 0; idx < 8; idx++) {
575                 snd_cs46xx_poke(chip, BA1_DREG, DREG_REGID_TRAP_SELECT + idx);
576                 snd_cs46xx_poke(chip, BA1_TWPR, 0xFFFF);
577         }
578         snd_cs46xx_poke(chip, BA1_DREG, 0);
579 
580         /*
581          *  Set the frame timer to reflect the number of cycles per frame.
582          */
583         snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
584 }
585 
586 static int cs46xx_wait_for_fifo(struct snd_cs46xx * chip,int retry_timeout) 
587 {
588         u32 i, status = 0;
589         /*
590          * Make sure the previous FIFO write operation has completed.
591          */
592         for(i = 0; i < 50; i++){
593                 status = snd_cs46xx_peekBA0(chip, BA0_SERBST);
594     
595                 if( !(status & SERBST_WBSY) )
596                         break;
597 
598                 mdelay(retry_timeout);
599         }
600   
601         if(status & SERBST_WBSY) {
602                 dev_err(chip->card->dev,
603                         "failure waiting for FIFO command to complete\n");
604                 return -EINVAL;
605         }
606 
607         return 0;
608 }
609 
610 static void snd_cs46xx_clear_serial_FIFOs(struct snd_cs46xx *chip)
611 {
612         int idx, powerdown = 0;
613         unsigned int tmp;
614 
615         /*
616          *  See if the devices are powered down.  If so, we must power them up first
617          *  or they will not respond.
618          */
619         tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
620         if (!(tmp & CLKCR1_SWCE)) {
621                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
622                 powerdown = 1;
623         }
624 
625         /*
626          *  We want to clear out the serial port FIFOs so we don't end up playing
627          *  whatever random garbage happens to be in them.  We fill the sample FIFOS
628          *  with zero (silence).
629          */
630         snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0);
631 
632         /*
633          *  Fill all 256 sample FIFO locations.
634          */
635         for (idx = 0; idx < 0xFF; idx++) {
636                 /*
637                  *  Make sure the previous FIFO write operation has completed.
638                  */
639                 if (cs46xx_wait_for_fifo(chip,1)) {
640                         dev_dbg(chip->card->dev,
641                                 "failed waiting for FIFO at addr (%02X)\n",
642                                 idx);
643 
644                         if (powerdown)
645                                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
646           
647                         break;
648                 }
649                 /*
650                  *  Write the serial port FIFO index.
651                  */
652                 snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
653                 /*
654                  *  Tell the serial port to load the new value into the FIFO location.
655                  */
656                 snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
657         }
658         /*
659          *  Now, if we powered up the devices, then power them back down again.
660          *  This is kinda ugly, but should never happen.
661          */
662         if (powerdown)
663                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
664 }
665 
666 static void snd_cs46xx_proc_start(struct snd_cs46xx *chip)
667 {
668         int cnt;
669 
670         /*
671          *  Set the frame timer to reflect the number of cycles per frame.
672          */
673         snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
674         /*
675          *  Turn on the run, run at frame, and DMA enable bits in the local copy of
676          *  the SP control register.
677          */
678         snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
679         /*
680          *  Wait until the run at frame bit resets itself in the SP control
681          *  register.
682          */
683         for (cnt = 0; cnt < 25; cnt++) {
684                 udelay(50);
685                 if (!(snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR))
686                         break;
687         }
688 
689         if (snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR)
690                 dev_err(chip->card->dev, "SPCR_RUNFR never reset\n");
691 }
692 
693 static void snd_cs46xx_proc_stop(struct snd_cs46xx *chip)
694 {
695         /*
696          *  Turn off the run, run at frame, and DMA enable bits in the local copy of
697          *  the SP control register.
698          */
699         snd_cs46xx_poke(chip, BA1_SPCR, 0);
700 }
701 
702 /*
703  *  Sample rate routines
704  */
705 
706 #define GOF_PER_SEC 200
707 
708 static void snd_cs46xx_set_play_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
709 {
710         unsigned long flags;
711         unsigned int tmp1, tmp2;
712         unsigned int phiIncr;
713         unsigned int correctionPerGOF, correctionPerSec;
714 
715         /*
716          *  Compute the values used to drive the actual sample rate conversion.
717          *  The following formulas are being computed, using inline assembly
718          *  since we need to use 64 bit arithmetic to compute the values:
719          *
720          *  phiIncr = floor((Fs,in * 2^26) / Fs,out)
721          *  correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
722          *                                   GOF_PER_SEC)
723          *  ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
724          *                       GOF_PER_SEC * correctionPerGOF
725          *
726          *  i.e.
727          *
728          *  phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
729          *  correctionPerGOF:correctionPerSec =
730          *      dividend:remainder(ulOther / GOF_PER_SEC)
731          */
732         tmp1 = rate << 16;
733         phiIncr = tmp1 / 48000;
734         tmp1 -= phiIncr * 48000;
735         tmp1 <<= 10;
736         phiIncr <<= 10;
737         tmp2 = tmp1 / 48000;
738         phiIncr += tmp2;
739         tmp1 -= tmp2 * 48000;
740         correctionPerGOF = tmp1 / GOF_PER_SEC;
741         tmp1 -= correctionPerGOF * GOF_PER_SEC;
742         correctionPerSec = tmp1;
743 
744         /*
745          *  Fill in the SampleRateConverter control block.
746          */
747         spin_lock_irqsave(&chip->reg_lock, flags);
748         snd_cs46xx_poke(chip, BA1_PSRC,
749           ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
750         snd_cs46xx_poke(chip, BA1_PPI, phiIncr);
751         spin_unlock_irqrestore(&chip->reg_lock, flags);
752 }
753 
754 static void snd_cs46xx_set_capture_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
755 {
756         unsigned long flags;
757         unsigned int phiIncr, coeffIncr, tmp1, tmp2;
758         unsigned int correctionPerGOF, correctionPerSec, initialDelay;
759         unsigned int frameGroupLength, cnt;
760 
761         /*
762          *  We can only decimate by up to a factor of 1/9th the hardware rate.
763          *  Correct the value if an attempt is made to stray outside that limit.
764          */
765         if ((rate * 9) < 48000)
766                 rate = 48000 / 9;
767 
768         /*
769          *  We can not capture at at rate greater than the Input Rate (48000).
770          *  Return an error if an attempt is made to stray outside that limit.
771          */
772         if (rate > 48000)
773                 rate = 48000;
774 
775         /*
776          *  Compute the values used to drive the actual sample rate conversion.
777          *  The following formulas are being computed, using inline assembly
778          *  since we need to use 64 bit arithmetic to compute the values:
779          *
780          *     coeffIncr = -floor((Fs,out * 2^23) / Fs,in)
781          *     phiIncr = floor((Fs,in * 2^26) / Fs,out)
782          *     correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
783          *                                GOF_PER_SEC)
784          *     correctionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
785          *                          GOF_PER_SEC * correctionPerGOF
786          *     initialDelay = ceil((24 * Fs,in) / Fs,out)
787          *
788          * i.e.
789          *
790          *     coeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in))
791          *     phiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
792          *     correctionPerGOF:correctionPerSec =
793          *          dividend:remainder(ulOther / GOF_PER_SEC)
794          *     initialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out)
795          */
796 
797         tmp1 = rate << 16;
798         coeffIncr = tmp1 / 48000;
799         tmp1 -= coeffIncr * 48000;
800         tmp1 <<= 7;
801         coeffIncr <<= 7;
802         coeffIncr += tmp1 / 48000;
803         coeffIncr ^= 0xFFFFFFFF;
804         coeffIncr++;
805         tmp1 = 48000 << 16;
806         phiIncr = tmp1 / rate;
807         tmp1 -= phiIncr * rate;
808         tmp1 <<= 10;
809         phiIncr <<= 10;
810         tmp2 = tmp1 / rate;
811         phiIncr += tmp2;
812         tmp1 -= tmp2 * rate;
813         correctionPerGOF = tmp1 / GOF_PER_SEC;
814         tmp1 -= correctionPerGOF * GOF_PER_SEC;
815         correctionPerSec = tmp1;
816         initialDelay = ((48000 * 24) + rate - 1) / rate;
817 
818         /*
819          *  Fill in the VariDecimate control block.
820          */
821         spin_lock_irqsave(&chip->reg_lock, flags);
822         snd_cs46xx_poke(chip, BA1_CSRC,
823                 ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
824         snd_cs46xx_poke(chip, BA1_CCI, coeffIncr);
825         snd_cs46xx_poke(chip, BA1_CD,
826                 (((BA1_VARIDEC_BUF_1 + (initialDelay << 2)) << 16) & 0xFFFF0000) | 0x80);
827         snd_cs46xx_poke(chip, BA1_CPI, phiIncr);
828         spin_unlock_irqrestore(&chip->reg_lock, flags);
829 
830         /*
831          *  Figure out the frame group length for the write back task.  Basically,
832          *  this is just the factors of 24000 (2^6*3*5^3) that are not present in
833          *  the output sample rate.
834          */
835         frameGroupLength = 1;
836         for (cnt = 2; cnt <= 64; cnt *= 2) {
837                 if (((rate / cnt) * cnt) != rate)
838                         frameGroupLength *= 2;
839         }
840         if (((rate / 3) * 3) != rate) {
841                 frameGroupLength *= 3;
842         }
843         for (cnt = 5; cnt <= 125; cnt *= 5) {
844                 if (((rate / cnt) * cnt) != rate) 
845                         frameGroupLength *= 5;
846         }
847 
848         /*
849          * Fill in the WriteBack control block.
850          */
851         spin_lock_irqsave(&chip->reg_lock, flags);
852         snd_cs46xx_poke(chip, BA1_CFG1, frameGroupLength);
853         snd_cs46xx_poke(chip, BA1_CFG2, (0x00800000 | frameGroupLength));
854         snd_cs46xx_poke(chip, BA1_CCST, 0x0000FFFF);
855         snd_cs46xx_poke(chip, BA1_CSPB, ((65536 * rate) / 24000));
856         snd_cs46xx_poke(chip, (BA1_CSPB + 4), 0x0000FFFF);
857         spin_unlock_irqrestore(&chip->reg_lock, flags);
858 }
859 
860 /*
861  *  PCM part
862  */
863 
864 static void snd_cs46xx_pb_trans_copy(struct snd_pcm_substream *substream,
865                                      struct snd_pcm_indirect *rec, size_t bytes)
866 {
867         struct snd_pcm_runtime *runtime = substream->runtime;
868         struct snd_cs46xx_pcm * cpcm = runtime->private_data;
869         memcpy(cpcm->hw_buf.area + rec->hw_data, runtime->dma_area + rec->sw_data, bytes);
870 }
871 
872 static int snd_cs46xx_playback_transfer(struct snd_pcm_substream *substream)
873 {
874         struct snd_pcm_runtime *runtime = substream->runtime;
875         struct snd_cs46xx_pcm * cpcm = runtime->private_data;
876         return snd_pcm_indirect_playback_transfer(substream, &cpcm->pcm_rec,
877                                                   snd_cs46xx_pb_trans_copy);
878 }
879 
880 static void snd_cs46xx_cp_trans_copy(struct snd_pcm_substream *substream,
881                                      struct snd_pcm_indirect *rec, size_t bytes)
882 {
883         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
884         struct snd_pcm_runtime *runtime = substream->runtime;
885         memcpy(runtime->dma_area + rec->sw_data,
886                chip->capt.hw_buf.area + rec->hw_data, bytes);
887 }
888 
889 static int snd_cs46xx_capture_transfer(struct snd_pcm_substream *substream)
890 {
891         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
892         return snd_pcm_indirect_capture_transfer(substream, &chip->capt.pcm_rec,
893                                                  snd_cs46xx_cp_trans_copy);
894 }
895 
896 static snd_pcm_uframes_t snd_cs46xx_playback_direct_pointer(struct snd_pcm_substream *substream)
897 {
898         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
899         size_t ptr;
900         struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
901 
902         if (snd_BUG_ON(!cpcm->pcm_channel))
903                 return -ENXIO;
904 
905 #ifdef CONFIG_SND_CS46XX_NEW_DSP
906         ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
907 #else
908         ptr = snd_cs46xx_peek(chip, BA1_PBA);
909 #endif
910         ptr -= cpcm->hw_buf.addr;
911         return ptr >> cpcm->shift;
912 }
913 
914 static snd_pcm_uframes_t snd_cs46xx_playback_indirect_pointer(struct snd_pcm_substream *substream)
915 {
916         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
917         size_t ptr;
918         struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
919 
920 #ifdef CONFIG_SND_CS46XX_NEW_DSP
921         if (snd_BUG_ON(!cpcm->pcm_channel))
922                 return -ENXIO;
923         ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
924 #else
925         ptr = snd_cs46xx_peek(chip, BA1_PBA);
926 #endif
927         ptr -= cpcm->hw_buf.addr;
928         return snd_pcm_indirect_playback_pointer(substream, &cpcm->pcm_rec, ptr);
929 }
930 
931 static snd_pcm_uframes_t snd_cs46xx_capture_direct_pointer(struct snd_pcm_substream *substream)
932 {
933         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
934         size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
935         return ptr >> chip->capt.shift;
936 }
937 
938 static snd_pcm_uframes_t snd_cs46xx_capture_indirect_pointer(struct snd_pcm_substream *substream)
939 {
940         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
941         size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
942         return snd_pcm_indirect_capture_pointer(substream, &chip->capt.pcm_rec, ptr);
943 }
944 
945 static int snd_cs46xx_playback_trigger(struct snd_pcm_substream *substream,
946                                        int cmd)
947 {
948         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
949         /*struct snd_pcm_runtime *runtime = substream->runtime;*/
950         int result = 0;
951 
952 #ifdef CONFIG_SND_CS46XX_NEW_DSP
953         struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
954         if (! cpcm->pcm_channel) {
955                 return -ENXIO;
956         }
957 #endif
958         switch (cmd) {
959         case SNDRV_PCM_TRIGGER_START:
960         case SNDRV_PCM_TRIGGER_RESUME:
961 #ifdef CONFIG_SND_CS46XX_NEW_DSP
962                 /* magic value to unmute PCM stream  playback volume */
963                 snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 
964                                        SCBVolumeCtrl) << 2, 0x80008000);
965 
966                 if (cpcm->pcm_channel->unlinked)
967                         cs46xx_dsp_pcm_link(chip,cpcm->pcm_channel);
968 
969                 if (substream->runtime->periods != CS46XX_FRAGS)
970                         snd_cs46xx_playback_transfer(substream);
971 #else
972                 spin_lock(&chip->reg_lock);
973                 if (substream->runtime->periods != CS46XX_FRAGS)
974                         snd_cs46xx_playback_transfer(substream);
975                 { unsigned int tmp;
976                 tmp = snd_cs46xx_peek(chip, BA1_PCTL);
977                 tmp &= 0x0000ffff;
978                 snd_cs46xx_poke(chip, BA1_PCTL, chip->play_ctl | tmp);
979                 }
980                 spin_unlock(&chip->reg_lock);
981 #endif
982                 break;
983         case SNDRV_PCM_TRIGGER_STOP:
984         case SNDRV_PCM_TRIGGER_SUSPEND:
985 #ifdef CONFIG_SND_CS46XX_NEW_DSP
986                 /* magic mute channel */
987                 snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 
988                                        SCBVolumeCtrl) << 2, 0xffffffff);
989 
990                 if (!cpcm->pcm_channel->unlinked)
991                         cs46xx_dsp_pcm_unlink(chip,cpcm->pcm_channel);
992 #else
993                 spin_lock(&chip->reg_lock);
994                 { unsigned int tmp;
995                 tmp = snd_cs46xx_peek(chip, BA1_PCTL);
996                 tmp &= 0x0000ffff;
997                 snd_cs46xx_poke(chip, BA1_PCTL, tmp);
998                 }
999                 spin_unlock(&chip->reg_lock);
1000 #endif
1001                 break;
1002         default:
1003                 result = -EINVAL;
1004                 break;
1005         }
1006 
1007         return result;
1008 }
1009 
1010 static int snd_cs46xx_capture_trigger(struct snd_pcm_substream *substream,
1011                                       int cmd)
1012 {
1013         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1014         unsigned int tmp;
1015         int result = 0;
1016 
1017         spin_lock(&chip->reg_lock);
1018         switch (cmd) {
1019         case SNDRV_PCM_TRIGGER_START:
1020         case SNDRV_PCM_TRIGGER_RESUME:
1021                 tmp = snd_cs46xx_peek(chip, BA1_CCTL);
1022                 tmp &= 0xffff0000;
1023                 snd_cs46xx_poke(chip, BA1_CCTL, chip->capt.ctl | tmp);
1024                 break;
1025         case SNDRV_PCM_TRIGGER_STOP:
1026         case SNDRV_PCM_TRIGGER_SUSPEND:
1027                 tmp = snd_cs46xx_peek(chip, BA1_CCTL);
1028                 tmp &= 0xffff0000;
1029                 snd_cs46xx_poke(chip, BA1_CCTL, tmp);
1030                 break;
1031         default:
1032                 result = -EINVAL;
1033                 break;
1034         }
1035         spin_unlock(&chip->reg_lock);
1036 
1037         return result;
1038 }
1039 
1040 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1041 static int _cs46xx_adjust_sample_rate (struct snd_cs46xx *chip, struct snd_cs46xx_pcm *cpcm,
1042                                        int sample_rate) 
1043 {
1044 
1045         /* If PCMReaderSCB and SrcTaskSCB not created yet ... */
1046         if ( cpcm->pcm_channel == NULL) {
1047                 cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate, 
1048                                                                    cpcm, cpcm->hw_buf.addr,cpcm->pcm_channel_id);
1049                 if (cpcm->pcm_channel == NULL) {
1050                         dev_err(chip->card->dev,
1051                                 "failed to create virtual PCM channel\n");
1052                         return -ENOMEM;
1053                 }
1054                 cpcm->pcm_channel->sample_rate = sample_rate;
1055         } else
1056         /* if sample rate is changed */
1057         if ((int)cpcm->pcm_channel->sample_rate != sample_rate) {
1058                 int unlinked = cpcm->pcm_channel->unlinked;
1059                 cs46xx_dsp_destroy_pcm_channel (chip,cpcm->pcm_channel);
1060 
1061                 if ( (cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate, cpcm, 
1062                                                                          cpcm->hw_buf.addr,
1063                                                                          cpcm->pcm_channel_id)) == NULL) {
1064                         dev_err(chip->card->dev,
1065                                 "failed to re-create virtual PCM channel\n");
1066                         return -ENOMEM;
1067                 }
1068 
1069                 if (!unlinked) cs46xx_dsp_pcm_link (chip,cpcm->pcm_channel);
1070                 cpcm->pcm_channel->sample_rate = sample_rate;
1071         }
1072 
1073         return 0;
1074 }
1075 #endif
1076 
1077 
1078 static int snd_cs46xx_playback_hw_params(struct snd_pcm_substream *substream,
1079                                          struct snd_pcm_hw_params *hw_params)
1080 {
1081         struct snd_pcm_runtime *runtime = substream->runtime;
1082         struct snd_cs46xx_pcm *cpcm;
1083         int err;
1084 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1085         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1086         int sample_rate = params_rate(hw_params);
1087         int period_size = params_period_bytes(hw_params);
1088 #endif
1089         cpcm = runtime->private_data;
1090 
1091 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1092         if (snd_BUG_ON(!sample_rate))
1093                 return -ENXIO;
1094 
1095         mutex_lock(&chip->spos_mutex);
1096 
1097         if (_cs46xx_adjust_sample_rate (chip,cpcm,sample_rate)) {
1098                 mutex_unlock(&chip->spos_mutex);
1099                 return -ENXIO;
1100         }
1101 
1102         snd_BUG_ON(!cpcm->pcm_channel);
1103         if (!cpcm->pcm_channel) {
1104                 mutex_unlock(&chip->spos_mutex);
1105                 return -ENXIO;
1106         }
1107 
1108 
1109         if (cs46xx_dsp_pcm_channel_set_period (chip,cpcm->pcm_channel,period_size)) {
1110                  mutex_unlock(&chip->spos_mutex);
1111                  return -EINVAL;
1112          }
1113 
1114         dev_dbg(chip->card->dev,
1115                 "period_size (%d), periods (%d) buffer_size(%d)\n",
1116                      period_size, params_periods(hw_params),
1117                      params_buffer_bytes(hw_params));
1118 #endif
1119 
1120         if (params_periods(hw_params) == CS46XX_FRAGS) {
1121                 if (runtime->dma_area != cpcm->hw_buf.area)
1122                         snd_pcm_lib_free_pages(substream);
1123                 runtime->dma_area = cpcm->hw_buf.area;
1124                 runtime->dma_addr = cpcm->hw_buf.addr;
1125                 runtime->dma_bytes = cpcm->hw_buf.bytes;
1126 
1127 
1128 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1129                 if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
1130                         substream->ops = &snd_cs46xx_playback_ops;
1131                 } else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
1132                         substream->ops = &snd_cs46xx_playback_rear_ops;
1133                 } else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
1134                         substream->ops = &snd_cs46xx_playback_clfe_ops;
1135                 } else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
1136                         substream->ops = &snd_cs46xx_playback_iec958_ops;
1137                 } else {
1138                         snd_BUG();
1139                 }
1140 #else
1141                 substream->ops = &snd_cs46xx_playback_ops;
1142 #endif
1143 
1144         } else {
1145                 if (runtime->dma_area == cpcm->hw_buf.area) {
1146                         runtime->dma_area = NULL;
1147                         runtime->dma_addr = 0;
1148                         runtime->dma_bytes = 0;
1149                 }
1150                 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) {
1151 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1152                         mutex_unlock(&chip->spos_mutex);
1153 #endif
1154                         return err;
1155                 }
1156 
1157 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1158                 if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
1159                         substream->ops = &snd_cs46xx_playback_indirect_ops;
1160                 } else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
1161                         substream->ops = &snd_cs46xx_playback_indirect_rear_ops;
1162                 } else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
1163                         substream->ops = &snd_cs46xx_playback_indirect_clfe_ops;
1164                 } else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
1165                         substream->ops = &snd_cs46xx_playback_indirect_iec958_ops;
1166                 } else {
1167                         snd_BUG();
1168                 }
1169 #else
1170                 substream->ops = &snd_cs46xx_playback_indirect_ops;
1171 #endif
1172 
1173         }
1174 
1175 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1176         mutex_unlock(&chip->spos_mutex);
1177 #endif
1178 
1179         return 0;
1180 }
1181 
1182 static int snd_cs46xx_playback_hw_free(struct snd_pcm_substream *substream)
1183 {
1184         /*struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);*/
1185         struct snd_pcm_runtime *runtime = substream->runtime;
1186         struct snd_cs46xx_pcm *cpcm;
1187 
1188         cpcm = runtime->private_data;
1189 
1190         /* if play_back open fails, then this function
1191            is called and cpcm can actually be NULL here */
1192         if (!cpcm) return -ENXIO;
1193 
1194         if (runtime->dma_area != cpcm->hw_buf.area)
1195                 snd_pcm_lib_free_pages(substream);
1196     
1197         runtime->dma_area = NULL;
1198         runtime->dma_addr = 0;
1199         runtime->dma_bytes = 0;
1200 
1201         return 0;
1202 }
1203 
1204 static int snd_cs46xx_playback_prepare(struct snd_pcm_substream *substream)
1205 {
1206         unsigned int tmp;
1207         unsigned int pfie;
1208         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1209         struct snd_pcm_runtime *runtime = substream->runtime;
1210         struct snd_cs46xx_pcm *cpcm;
1211 
1212         cpcm = runtime->private_data;
1213 
1214 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1215         if (snd_BUG_ON(!cpcm->pcm_channel))
1216                 return -ENXIO;
1217 
1218         pfie = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2 );
1219         pfie &= ~0x0000f03f;
1220 #else
1221         /* old dsp */
1222         pfie = snd_cs46xx_peek(chip, BA1_PFIE);
1223         pfie &= ~0x0000f03f;
1224 #endif
1225 
1226         cpcm->shift = 2;
1227         /* if to convert from stereo to mono */
1228         if (runtime->channels == 1) {
1229                 cpcm->shift--;
1230                 pfie |= 0x00002000;
1231         }
1232         /* if to convert from 8 bit to 16 bit */
1233         if (snd_pcm_format_width(runtime->format) == 8) {
1234                 cpcm->shift--;
1235                 pfie |= 0x00001000;
1236         }
1237         /* if to convert to unsigned */
1238         if (snd_pcm_format_unsigned(runtime->format))
1239                 pfie |= 0x00008000;
1240 
1241         /* Never convert byte order when sample stream is 8 bit */
1242         if (snd_pcm_format_width(runtime->format) != 8) {
1243                 /* convert from big endian to little endian */
1244                 if (snd_pcm_format_big_endian(runtime->format))
1245                         pfie |= 0x00004000;
1246         }
1247         
1248         memset(&cpcm->pcm_rec, 0, sizeof(cpcm->pcm_rec));
1249         cpcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1250         cpcm->pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << cpcm->shift;
1251 
1252 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1253 
1254         tmp = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2);
1255         tmp &= ~0x000003ff;
1256         tmp |= (4 << cpcm->shift) - 1;
1257         /* playback transaction count register */
1258         snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2, tmp);
1259 
1260         /* playback format && interrupt enable */
1261         snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2, pfie | cpcm->pcm_channel->pcm_slot);
1262 #else
1263         snd_cs46xx_poke(chip, BA1_PBA, cpcm->hw_buf.addr);
1264         tmp = snd_cs46xx_peek(chip, BA1_PDTC);
1265         tmp &= ~0x000003ff;
1266         tmp |= (4 << cpcm->shift) - 1;
1267         snd_cs46xx_poke(chip, BA1_PDTC, tmp);
1268         snd_cs46xx_poke(chip, BA1_PFIE, pfie);
1269         snd_cs46xx_set_play_sample_rate(chip, runtime->rate);
1270 #endif
1271 
1272         return 0;
1273 }
1274 
1275 static int snd_cs46xx_capture_hw_params(struct snd_pcm_substream *substream,
1276                                         struct snd_pcm_hw_params *hw_params)
1277 {
1278         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1279         struct snd_pcm_runtime *runtime = substream->runtime;
1280         int err;
1281 
1282 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1283         cs46xx_dsp_pcm_ostream_set_period (chip, params_period_bytes(hw_params));
1284 #endif
1285         if (runtime->periods == CS46XX_FRAGS) {
1286                 if (runtime->dma_area != chip->capt.hw_buf.area)
1287                         snd_pcm_lib_free_pages(substream);
1288                 runtime->dma_area = chip->capt.hw_buf.area;
1289                 runtime->dma_addr = chip->capt.hw_buf.addr;
1290                 runtime->dma_bytes = chip->capt.hw_buf.bytes;
1291                 substream->ops = &snd_cs46xx_capture_ops;
1292         } else {
1293                 if (runtime->dma_area == chip->capt.hw_buf.area) {
1294                         runtime->dma_area = NULL;
1295                         runtime->dma_addr = 0;
1296                         runtime->dma_bytes = 0;
1297                 }
1298                 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1299                         return err;
1300                 substream->ops = &snd_cs46xx_capture_indirect_ops;
1301         }
1302 
1303         return 0;
1304 }
1305 
1306 static int snd_cs46xx_capture_hw_free(struct snd_pcm_substream *substream)
1307 {
1308         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1309         struct snd_pcm_runtime *runtime = substream->runtime;
1310 
1311         if (runtime->dma_area != chip->capt.hw_buf.area)
1312                 snd_pcm_lib_free_pages(substream);
1313         runtime->dma_area = NULL;
1314         runtime->dma_addr = 0;
1315         runtime->dma_bytes = 0;
1316 
1317         return 0;
1318 }
1319 
1320 static int snd_cs46xx_capture_prepare(struct snd_pcm_substream *substream)
1321 {
1322         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1323         struct snd_pcm_runtime *runtime = substream->runtime;
1324 
1325         snd_cs46xx_poke(chip, BA1_CBA, chip->capt.hw_buf.addr);
1326         chip->capt.shift = 2;
1327         memset(&chip->capt.pcm_rec, 0, sizeof(chip->capt.pcm_rec));
1328         chip->capt.pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1329         chip->capt.pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << 2;
1330         snd_cs46xx_set_capture_sample_rate(chip, runtime->rate);
1331 
1332         return 0;
1333 }
1334 
1335 static irqreturn_t snd_cs46xx_interrupt(int irq, void *dev_id)
1336 {
1337         struct snd_cs46xx *chip = dev_id;
1338         u32 status1;
1339 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1340         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
1341         u32 status2;
1342         int i;
1343         struct snd_cs46xx_pcm *cpcm = NULL;
1344 #endif
1345 
1346         /*
1347          *  Read the Interrupt Status Register to clear the interrupt
1348          */
1349         status1 = snd_cs46xx_peekBA0(chip, BA0_HISR);
1350         if ((status1 & 0x7fffffff) == 0) {
1351                 snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1352                 return IRQ_NONE;
1353         }
1354 
1355 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1356         status2 = snd_cs46xx_peekBA0(chip, BA0_HSR0);
1357 
1358         for (i = 0; i < DSP_MAX_PCM_CHANNELS; ++i) {
1359                 if (i <= 15) {
1360                         if ( status1 & (1 << i) ) {
1361                                 if (i == CS46XX_DSP_CAPTURE_CHANNEL) {
1362                                         if (chip->capt.substream)
1363                                                 snd_pcm_period_elapsed(chip->capt.substream);
1364                                 } else {
1365                                         if (ins->pcm_channels[i].active &&
1366                                             ins->pcm_channels[i].private_data &&
1367                                             !ins->pcm_channels[i].unlinked) {
1368                                                 cpcm = ins->pcm_channels[i].private_data;
1369                                                 snd_pcm_period_elapsed(cpcm->substream);
1370                                         }
1371                                 }
1372                         }
1373                 } else {
1374                         if ( status2 & (1 << (i - 16))) {
1375                                 if (ins->pcm_channels[i].active && 
1376                                     ins->pcm_channels[i].private_data &&
1377                                     !ins->pcm_channels[i].unlinked) {
1378                                         cpcm = ins->pcm_channels[i].private_data;
1379                                         snd_pcm_period_elapsed(cpcm->substream);
1380                                 }
1381                         }
1382                 }
1383         }
1384 
1385 #else
1386         /* old dsp */
1387         if ((status1 & HISR_VC0) && chip->playback_pcm) {
1388                 if (chip->playback_pcm->substream)
1389                         snd_pcm_period_elapsed(chip->playback_pcm->substream);
1390         }
1391         if ((status1 & HISR_VC1) && chip->pcm) {
1392                 if (chip->capt.substream)
1393                         snd_pcm_period_elapsed(chip->capt.substream);
1394         }
1395 #endif
1396 
1397         if ((status1 & HISR_MIDI) && chip->rmidi) {
1398                 unsigned char c;
1399                 
1400                 spin_lock(&chip->reg_lock);
1401                 while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_RBE) == 0) {
1402                         c = snd_cs46xx_peekBA0(chip, BA0_MIDRP);
1403                         if ((chip->midcr & MIDCR_RIE) == 0)
1404                                 continue;
1405                         snd_rawmidi_receive(chip->midi_input, &c, 1);
1406                 }
1407                 while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
1408                         if ((chip->midcr & MIDCR_TIE) == 0)
1409                                 break;
1410                         if (snd_rawmidi_transmit(chip->midi_output, &c, 1) != 1) {
1411                                 chip->midcr &= ~MIDCR_TIE;
1412                                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
1413                                 break;
1414                         }
1415                         snd_cs46xx_pokeBA0(chip, BA0_MIDWP, c);
1416                 }
1417                 spin_unlock(&chip->reg_lock);
1418         }
1419         /*
1420          *  EOI to the PCI part....reenables interrupts
1421          */
1422         snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
1423 
1424         return IRQ_HANDLED;
1425 }
1426 
1427 static const struct snd_pcm_hardware snd_cs46xx_playback =
1428 {
1429         .info =                 (SNDRV_PCM_INFO_MMAP |
1430                                  SNDRV_PCM_INFO_INTERLEAVED | 
1431                                  SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1432                                  /*SNDRV_PCM_INFO_RESUME*/ |
1433                                  SNDRV_PCM_INFO_SYNC_APPLPTR),
1434         .formats =              (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
1435                                  SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
1436                                  SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE),
1437         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1438         .rate_min =             5500,
1439         .rate_max =             48000,
1440         .channels_min =         1,
1441         .channels_max =         2,
1442         .buffer_bytes_max =     (256 * 1024),
1443         .period_bytes_min =     CS46XX_MIN_PERIOD_SIZE,
1444         .period_bytes_max =     CS46XX_MAX_PERIOD_SIZE,
1445         .periods_min =          CS46XX_FRAGS,
1446         .periods_max =          1024,
1447         .fifo_size =            0,
1448 };
1449 
1450 static const struct snd_pcm_hardware snd_cs46xx_capture =
1451 {
1452         .info =                 (SNDRV_PCM_INFO_MMAP |
1453                                  SNDRV_PCM_INFO_INTERLEAVED |
1454                                  SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
1455                                  /*SNDRV_PCM_INFO_RESUME*/ |
1456                                  SNDRV_PCM_INFO_SYNC_APPLPTR),
1457         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1458         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1459         .rate_min =             5500,
1460         .rate_max =             48000,
1461         .channels_min =         2,
1462         .channels_max =         2,
1463         .buffer_bytes_max =     (256 * 1024),
1464         .period_bytes_min =     CS46XX_MIN_PERIOD_SIZE,
1465         .period_bytes_max =     CS46XX_MAX_PERIOD_SIZE,
1466         .periods_min =          CS46XX_FRAGS,
1467         .periods_max =          1024,
1468         .fifo_size =            0,
1469 };
1470 
1471 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1472 
1473 static const unsigned int period_sizes[] = { 32, 64, 128, 256, 512, 1024, 2048 };
1474 
1475 static const struct snd_pcm_hw_constraint_list hw_constraints_period_sizes = {
1476         .count = ARRAY_SIZE(period_sizes),
1477         .list = period_sizes,
1478         .mask = 0
1479 };
1480 
1481 #endif
1482 
1483 static void snd_cs46xx_pcm_free_substream(struct snd_pcm_runtime *runtime)
1484 {
1485         kfree(runtime->private_data);
1486 }
1487 
1488 static int _cs46xx_playback_open_channel (struct snd_pcm_substream *substream,int pcm_channel_id)
1489 {
1490         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1491         struct snd_cs46xx_pcm * cpcm;
1492         struct snd_pcm_runtime *runtime = substream->runtime;
1493 
1494         cpcm = kzalloc(sizeof(*cpcm), GFP_KERNEL);
1495         if (cpcm == NULL)
1496                 return -ENOMEM;
1497         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
1498                                 PAGE_SIZE, &cpcm->hw_buf) < 0) {
1499                 kfree(cpcm);
1500                 return -ENOMEM;
1501         }
1502 
1503         runtime->hw = snd_cs46xx_playback;
1504         runtime->private_data = cpcm;
1505         runtime->private_free = snd_cs46xx_pcm_free_substream;
1506 
1507         cpcm->substream = substream;
1508 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1509         mutex_lock(&chip->spos_mutex);
1510         cpcm->pcm_channel = NULL; 
1511         cpcm->pcm_channel_id = pcm_channel_id;
1512 
1513 
1514         snd_pcm_hw_constraint_list(runtime, 0,
1515                                    SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 
1516                                    &hw_constraints_period_sizes);
1517 
1518         mutex_unlock(&chip->spos_mutex);
1519 #else
1520         chip->playback_pcm = cpcm; /* HACK */
1521 #endif
1522 
1523         if (chip->accept_valid)
1524                 substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1525         chip->active_ctrl(chip, 1);
1526 
1527         return 0;
1528 }
1529 
1530 static int snd_cs46xx_playback_open(struct snd_pcm_substream *substream)
1531 {
1532         dev_dbg(substream->pcm->card->dev, "open front channel\n");
1533         return _cs46xx_playback_open_channel(substream,DSP_PCM_MAIN_CHANNEL);
1534 }
1535 
1536 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1537 static int snd_cs46xx_playback_open_rear(struct snd_pcm_substream *substream)
1538 {
1539         dev_dbg(substream->pcm->card->dev, "open rear channel\n");
1540         return _cs46xx_playback_open_channel(substream,DSP_PCM_REAR_CHANNEL);
1541 }
1542 
1543 static int snd_cs46xx_playback_open_clfe(struct snd_pcm_substream *substream)
1544 {
1545         dev_dbg(substream->pcm->card->dev, "open center - LFE channel\n");
1546         return _cs46xx_playback_open_channel(substream,DSP_PCM_CENTER_LFE_CHANNEL);
1547 }
1548 
1549 static int snd_cs46xx_playback_open_iec958(struct snd_pcm_substream *substream)
1550 {
1551         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1552 
1553         dev_dbg(chip->card->dev, "open raw iec958 channel\n");
1554 
1555         mutex_lock(&chip->spos_mutex);
1556         cs46xx_iec958_pre_open (chip);
1557         mutex_unlock(&chip->spos_mutex);
1558 
1559         return _cs46xx_playback_open_channel(substream,DSP_IEC958_CHANNEL);
1560 }
1561 
1562 static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream);
1563 
1564 static int snd_cs46xx_playback_close_iec958(struct snd_pcm_substream *substream)
1565 {
1566         int err;
1567         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1568   
1569         dev_dbg(chip->card->dev, "close raw iec958 channel\n");
1570 
1571         err = snd_cs46xx_playback_close(substream);
1572 
1573         mutex_lock(&chip->spos_mutex);
1574         cs46xx_iec958_post_close (chip);
1575         mutex_unlock(&chip->spos_mutex);
1576 
1577         return err;
1578 }
1579 #endif
1580 
1581 static int snd_cs46xx_capture_open(struct snd_pcm_substream *substream)
1582 {
1583         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1584 
1585         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
1586                                 PAGE_SIZE, &chip->capt.hw_buf) < 0)
1587                 return -ENOMEM;
1588         chip->capt.substream = substream;
1589         substream->runtime->hw = snd_cs46xx_capture;
1590 
1591         if (chip->accept_valid)
1592                 substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
1593 
1594         chip->active_ctrl(chip, 1);
1595 
1596 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1597         snd_pcm_hw_constraint_list(substream->runtime, 0,
1598                                    SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 
1599                                    &hw_constraints_period_sizes);
1600 #endif
1601         return 0;
1602 }
1603 
1604 static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream)
1605 {
1606         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1607         struct snd_pcm_runtime *runtime = substream->runtime;
1608         struct snd_cs46xx_pcm * cpcm;
1609 
1610         cpcm = runtime->private_data;
1611 
1612         /* when playback_open fails, then cpcm can be NULL */
1613         if (!cpcm) return -ENXIO;
1614 
1615 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1616         mutex_lock(&chip->spos_mutex);
1617         if (cpcm->pcm_channel) {
1618                 cs46xx_dsp_destroy_pcm_channel(chip,cpcm->pcm_channel);
1619                 cpcm->pcm_channel = NULL;
1620         }
1621         mutex_unlock(&chip->spos_mutex);
1622 #else
1623         chip->playback_pcm = NULL;
1624 #endif
1625 
1626         cpcm->substream = NULL;
1627         snd_dma_free_pages(&cpcm->hw_buf);
1628         chip->active_ctrl(chip, -1);
1629 
1630         return 0;
1631 }
1632 
1633 static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
1634 {
1635         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
1636 
1637         chip->capt.substream = NULL;
1638         snd_dma_free_pages(&chip->capt.hw_buf);
1639         chip->active_ctrl(chip, -1);
1640 
1641         return 0;
1642 }
1643 
1644 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1645 static const struct snd_pcm_ops snd_cs46xx_playback_rear_ops = {
1646         .open =                 snd_cs46xx_playback_open_rear,
1647         .close =                snd_cs46xx_playback_close,
1648         .ioctl =                snd_pcm_lib_ioctl,
1649         .hw_params =            snd_cs46xx_playback_hw_params,
1650         .hw_free =              snd_cs46xx_playback_hw_free,
1651         .prepare =              snd_cs46xx_playback_prepare,
1652         .trigger =              snd_cs46xx_playback_trigger,
1653         .pointer =              snd_cs46xx_playback_direct_pointer,
1654 };
1655 
1656 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops = {
1657         .open =                 snd_cs46xx_playback_open_rear,
1658         .close =                snd_cs46xx_playback_close,
1659         .ioctl =                snd_pcm_lib_ioctl,
1660         .hw_params =            snd_cs46xx_playback_hw_params,
1661         .hw_free =              snd_cs46xx_playback_hw_free,
1662         .prepare =              snd_cs46xx_playback_prepare,
1663         .trigger =              snd_cs46xx_playback_trigger,
1664         .pointer =              snd_cs46xx_playback_indirect_pointer,
1665         .ack =                  snd_cs46xx_playback_transfer,
1666 };
1667 
1668 static const struct snd_pcm_ops snd_cs46xx_playback_clfe_ops = {
1669         .open =                 snd_cs46xx_playback_open_clfe,
1670         .close =                snd_cs46xx_playback_close,
1671         .ioctl =                snd_pcm_lib_ioctl,
1672         .hw_params =            snd_cs46xx_playback_hw_params,
1673         .hw_free =              snd_cs46xx_playback_hw_free,
1674         .prepare =              snd_cs46xx_playback_prepare,
1675         .trigger =              snd_cs46xx_playback_trigger,
1676         .pointer =              snd_cs46xx_playback_direct_pointer,
1677 };
1678 
1679 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops = {
1680         .open =                 snd_cs46xx_playback_open_clfe,
1681         .close =                snd_cs46xx_playback_close,
1682         .ioctl =                snd_pcm_lib_ioctl,
1683         .hw_params =            snd_cs46xx_playback_hw_params,
1684         .hw_free =              snd_cs46xx_playback_hw_free,
1685         .prepare =              snd_cs46xx_playback_prepare,
1686         .trigger =              snd_cs46xx_playback_trigger,
1687         .pointer =              snd_cs46xx_playback_indirect_pointer,
1688         .ack =                  snd_cs46xx_playback_transfer,
1689 };
1690 
1691 static const struct snd_pcm_ops snd_cs46xx_playback_iec958_ops = {
1692         .open =                 snd_cs46xx_playback_open_iec958,
1693         .close =                snd_cs46xx_playback_close_iec958,
1694         .ioctl =                snd_pcm_lib_ioctl,
1695         .hw_params =            snd_cs46xx_playback_hw_params,
1696         .hw_free =              snd_cs46xx_playback_hw_free,
1697         .prepare =              snd_cs46xx_playback_prepare,
1698         .trigger =              snd_cs46xx_playback_trigger,
1699         .pointer =              snd_cs46xx_playback_direct_pointer,
1700 };
1701 
1702 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops = {
1703         .open =                 snd_cs46xx_playback_open_iec958,
1704         .close =                snd_cs46xx_playback_close_iec958,
1705         .ioctl =                snd_pcm_lib_ioctl,
1706         .hw_params =            snd_cs46xx_playback_hw_params,
1707         .hw_free =              snd_cs46xx_playback_hw_free,
1708         .prepare =              snd_cs46xx_playback_prepare,
1709         .trigger =              snd_cs46xx_playback_trigger,
1710         .pointer =              snd_cs46xx_playback_indirect_pointer,
1711         .ack =                  snd_cs46xx_playback_transfer,
1712 };
1713 
1714 #endif
1715 
1716 static const struct snd_pcm_ops snd_cs46xx_playback_ops = {
1717         .open =                 snd_cs46xx_playback_open,
1718         .close =                snd_cs46xx_playback_close,
1719         .ioctl =                snd_pcm_lib_ioctl,
1720         .hw_params =            snd_cs46xx_playback_hw_params,
1721         .hw_free =              snd_cs46xx_playback_hw_free,
1722         .prepare =              snd_cs46xx_playback_prepare,
1723         .trigger =              snd_cs46xx_playback_trigger,
1724         .pointer =              snd_cs46xx_playback_direct_pointer,
1725 };
1726 
1727 static const struct snd_pcm_ops snd_cs46xx_playback_indirect_ops = {
1728         .open =                 snd_cs46xx_playback_open,
1729         .close =                snd_cs46xx_playback_close,
1730         .ioctl =                snd_pcm_lib_ioctl,
1731         .hw_params =            snd_cs46xx_playback_hw_params,
1732         .hw_free =              snd_cs46xx_playback_hw_free,
1733         .prepare =              snd_cs46xx_playback_prepare,
1734         .trigger =              snd_cs46xx_playback_trigger,
1735         .pointer =              snd_cs46xx_playback_indirect_pointer,
1736         .ack =                  snd_cs46xx_playback_transfer,
1737 };
1738 
1739 static const struct snd_pcm_ops snd_cs46xx_capture_ops = {
1740         .open =                 snd_cs46xx_capture_open,
1741         .close =                snd_cs46xx_capture_close,
1742         .ioctl =                snd_pcm_lib_ioctl,
1743         .hw_params =            snd_cs46xx_capture_hw_params,
1744         .hw_free =              snd_cs46xx_capture_hw_free,
1745         .prepare =              snd_cs46xx_capture_prepare,
1746         .trigger =              snd_cs46xx_capture_trigger,
1747         .pointer =              snd_cs46xx_capture_direct_pointer,
1748 };
1749 
1750 static const struct snd_pcm_ops snd_cs46xx_capture_indirect_ops = {
1751         .open =                 snd_cs46xx_capture_open,
1752         .close =                snd_cs46xx_capture_close,
1753         .ioctl =                snd_pcm_lib_ioctl,
1754         .hw_params =            snd_cs46xx_capture_hw_params,
1755         .hw_free =              snd_cs46xx_capture_hw_free,
1756         .prepare =              snd_cs46xx_capture_prepare,
1757         .trigger =              snd_cs46xx_capture_trigger,
1758         .pointer =              snd_cs46xx_capture_indirect_pointer,
1759         .ack =                  snd_cs46xx_capture_transfer,
1760 };
1761 
1762 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1763 #define MAX_PLAYBACK_CHANNELS   (DSP_MAX_PCM_CHANNELS - 1)
1764 #else
1765 #define MAX_PLAYBACK_CHANNELS   1
1766 #endif
1767 
1768 int snd_cs46xx_pcm(struct snd_cs46xx *chip, int device)
1769 {
1770         struct snd_pcm *pcm;
1771         int err;
1772 
1773         if ((err = snd_pcm_new(chip->card, "CS46xx", device, MAX_PLAYBACK_CHANNELS, 1, &pcm)) < 0)
1774                 return err;
1775 
1776         pcm->private_data = chip;
1777 
1778         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_ops);
1779         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs46xx_capture_ops);
1780 
1781         /* global setup */
1782         pcm->info_flags = 0;
1783         strcpy(pcm->name, "CS46xx");
1784         chip->pcm = pcm;
1785 
1786         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1787                                               &chip->pci->dev,
1788                                               64*1024, 256*1024);
1789 
1790         return 0;
1791 }
1792 
1793 
1794 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1795 int snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device)
1796 {
1797         struct snd_pcm *pcm;
1798         int err;
1799 
1800         if ((err = snd_pcm_new(chip->card, "CS46xx - Rear", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
1801                 return err;
1802 
1803         pcm->private_data = chip;
1804 
1805         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_rear_ops);
1806 
1807         /* global setup */
1808         pcm->info_flags = 0;
1809         strcpy(pcm->name, "CS46xx - Rear");
1810         chip->pcm_rear = pcm;
1811 
1812         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1813                                               &chip->pci->dev,
1814                                               64*1024, 256*1024);
1815 
1816         return 0;
1817 }
1818 
1819 int snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device)
1820 {
1821         struct snd_pcm *pcm;
1822         int err;
1823 
1824         if ((err = snd_pcm_new(chip->card, "CS46xx - Center LFE", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
1825                 return err;
1826 
1827         pcm->private_data = chip;
1828 
1829         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_clfe_ops);
1830 
1831         /* global setup */
1832         pcm->info_flags = 0;
1833         strcpy(pcm->name, "CS46xx - Center LFE");
1834         chip->pcm_center_lfe = pcm;
1835 
1836         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1837                                               &chip->pci->dev,
1838                                               64*1024, 256*1024);
1839 
1840         return 0;
1841 }
1842 
1843 int snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device)
1844 {
1845         struct snd_pcm *pcm;
1846         int err;
1847 
1848         if ((err = snd_pcm_new(chip->card, "CS46xx - IEC958", device, 1, 0, &pcm)) < 0)
1849                 return err;
1850 
1851         pcm->private_data = chip;
1852 
1853         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_iec958_ops);
1854 
1855         /* global setup */
1856         pcm->info_flags = 0;
1857         strcpy(pcm->name, "CS46xx - IEC958");
1858         chip->pcm_iec958 = pcm;
1859 
1860         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1861                                               &chip->pci->dev,
1862                                               64*1024, 256*1024);
1863 
1864         return 0;
1865 }
1866 #endif
1867 
1868 /*
1869  *  Mixer routines
1870  */
1871 static void snd_cs46xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1872 {
1873         struct snd_cs46xx *chip = bus->private_data;
1874 
1875         chip->ac97_bus = NULL;
1876 }
1877 
1878 static void snd_cs46xx_mixer_free_ac97(struct snd_ac97 *ac97)
1879 {
1880         struct snd_cs46xx *chip = ac97->private_data;
1881 
1882         if (snd_BUG_ON(ac97 != chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] &&
1883                        ac97 != chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]))
1884                 return;
1885 
1886         if (ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) {
1887                 chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] = NULL;
1888                 chip->eapd_switch = NULL;
1889         }
1890         else
1891                 chip->ac97[CS46XX_SECONDARY_CODEC_INDEX] = NULL;
1892 }
1893 
1894 static int snd_cs46xx_vol_info(struct snd_kcontrol *kcontrol, 
1895                                struct snd_ctl_elem_info *uinfo)
1896 {
1897         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1898         uinfo->count = 2;
1899         uinfo->value.integer.min = 0;
1900         uinfo->value.integer.max = 0x7fff;
1901         return 0;
1902 }
1903 
1904 static int snd_cs46xx_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1905 {
1906         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1907         int reg = kcontrol->private_value;
1908         unsigned int val = snd_cs46xx_peek(chip, reg);
1909         ucontrol->value.integer.value[0] = 0xffff - (val >> 16);
1910         ucontrol->value.integer.value[1] = 0xffff - (val & 0xffff);
1911         return 0;
1912 }
1913 
1914 static int snd_cs46xx_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1915 {
1916         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1917         int reg = kcontrol->private_value;
1918         unsigned int val = ((0xffff - ucontrol->value.integer.value[0]) << 16 | 
1919                             (0xffff - ucontrol->value.integer.value[1]));
1920         unsigned int old = snd_cs46xx_peek(chip, reg);
1921         int change = (old != val);
1922 
1923         if (change) {
1924                 snd_cs46xx_poke(chip, reg, val);
1925         }
1926 
1927         return change;
1928 }
1929 
1930 #ifdef CONFIG_SND_CS46XX_NEW_DSP
1931 
1932 static int snd_cs46xx_vol_dac_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1933 {
1934         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1935 
1936         ucontrol->value.integer.value[0] = chip->dsp_spos_instance->dac_volume_left;
1937         ucontrol->value.integer.value[1] = chip->dsp_spos_instance->dac_volume_right;
1938 
1939         return 0;
1940 }
1941 
1942 static int snd_cs46xx_vol_dac_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1943 {
1944         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1945         int change = 0;
1946 
1947         if (chip->dsp_spos_instance->dac_volume_right != ucontrol->value.integer.value[0] ||
1948             chip->dsp_spos_instance->dac_volume_left != ucontrol->value.integer.value[1]) {
1949                 cs46xx_dsp_set_dac_volume(chip,
1950                                           ucontrol->value.integer.value[0],
1951                                           ucontrol->value.integer.value[1]);
1952                 change = 1;
1953         }
1954 
1955         return change;
1956 }
1957 
1958 #if 0
1959 static int snd_cs46xx_vol_iec958_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1960 {
1961         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1962 
1963         ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_input_volume_left;
1964         ucontrol->value.integer.value[1] = chip->dsp_spos_instance->spdif_input_volume_right;
1965         return 0;
1966 }
1967 
1968 static int snd_cs46xx_vol_iec958_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1969 {
1970         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1971         int change = 0;
1972 
1973         if (chip->dsp_spos_instance->spdif_input_volume_left  != ucontrol->value.integer.value[0] ||
1974             chip->dsp_spos_instance->spdif_input_volume_right!= ucontrol->value.integer.value[1]) {
1975                 cs46xx_dsp_set_iec958_volume (chip,
1976                                               ucontrol->value.integer.value[0],
1977                                               ucontrol->value.integer.value[1]);
1978                 change = 1;
1979         }
1980 
1981         return change;
1982 }
1983 #endif
1984 
1985 #define snd_mixer_boolean_info          snd_ctl_boolean_mono_info
1986 
1987 static int snd_cs46xx_iec958_get(struct snd_kcontrol *kcontrol, 
1988                                  struct snd_ctl_elem_value *ucontrol)
1989 {
1990         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
1991         int reg = kcontrol->private_value;
1992 
1993         if (reg == CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT)
1994                 ucontrol->value.integer.value[0] = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
1995         else
1996                 ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_status_in;
1997 
1998         return 0;
1999 }
2000 
2001 static int snd_cs46xx_iec958_put(struct snd_kcontrol *kcontrol, 
2002                                   struct snd_ctl_elem_value *ucontrol)
2003 {
2004         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2005         int change, res;
2006 
2007         switch (kcontrol->private_value) {
2008         case CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT:
2009                 mutex_lock(&chip->spos_mutex);
2010                 change = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
2011                 if (ucontrol->value.integer.value[0] && !change) 
2012                         cs46xx_dsp_enable_spdif_out(chip);
2013                 else if (change && !ucontrol->value.integer.value[0])
2014                         cs46xx_dsp_disable_spdif_out(chip);
2015 
2016                 res = (change != (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED));
2017                 mutex_unlock(&chip->spos_mutex);
2018                 break;
2019         case CS46XX_MIXER_SPDIF_INPUT_ELEMENT:
2020                 change = chip->dsp_spos_instance->spdif_status_in;
2021                 if (ucontrol->value.integer.value[0] && !change) {
2022                         cs46xx_dsp_enable_spdif_in(chip);
2023                         /* restore volume */
2024                 }
2025                 else if (change && !ucontrol->value.integer.value[0])
2026                         cs46xx_dsp_disable_spdif_in(chip);
2027                 
2028                 res = (change != chip->dsp_spos_instance->spdif_status_in);
2029                 break;
2030         default:
2031                 res = -EINVAL;
2032                 snd_BUG(); /* should never happen ... */
2033         }
2034 
2035         return res;
2036 }
2037 
2038 static int snd_cs46xx_adc_capture_get(struct snd_kcontrol *kcontrol, 
2039                                       struct snd_ctl_elem_value *ucontrol)
2040 {
2041         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2042         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2043 
2044         if (ins->adc_input != NULL) 
2045                 ucontrol->value.integer.value[0] = 1;
2046         else 
2047                 ucontrol->value.integer.value[0] = 0;
2048         
2049         return 0;
2050 }
2051 
2052 static int snd_cs46xx_adc_capture_put(struct snd_kcontrol *kcontrol, 
2053                                       struct snd_ctl_elem_value *ucontrol)
2054 {
2055         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2056         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2057         int change = 0;
2058 
2059         if (ucontrol->value.integer.value[0] && !ins->adc_input) {
2060                 cs46xx_dsp_enable_adc_capture(chip);
2061                 change = 1;
2062         } else  if (!ucontrol->value.integer.value[0] && ins->adc_input) {
2063                 cs46xx_dsp_disable_adc_capture(chip);
2064                 change = 1;
2065         }
2066         return change;
2067 }
2068 
2069 static int snd_cs46xx_pcm_capture_get(struct snd_kcontrol *kcontrol, 
2070                                       struct snd_ctl_elem_value *ucontrol)
2071 {
2072         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2073         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2074 
2075         if (ins->pcm_input != NULL) 
2076                 ucontrol->value.integer.value[0] = 1;
2077         else 
2078                 ucontrol->value.integer.value[0] = 0;
2079 
2080         return 0;
2081 }
2082 
2083 
2084 static int snd_cs46xx_pcm_capture_put(struct snd_kcontrol *kcontrol, 
2085                                       struct snd_ctl_elem_value *ucontrol)
2086 {
2087         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2088         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2089         int change = 0;
2090 
2091         if (ucontrol->value.integer.value[0] && !ins->pcm_input) {
2092                 cs46xx_dsp_enable_pcm_capture(chip);
2093                 change = 1;
2094         } else  if (!ucontrol->value.integer.value[0] && ins->pcm_input) {
2095                 cs46xx_dsp_disable_pcm_capture(chip);
2096                 change = 1;
2097         }
2098 
2099         return change;
2100 }
2101 
2102 static int snd_herc_spdif_select_get(struct snd_kcontrol *kcontrol, 
2103                                      struct snd_ctl_elem_value *ucontrol)
2104 {
2105         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2106 
2107         int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
2108 
2109         if (val1 & EGPIODR_GPOE0)
2110                 ucontrol->value.integer.value[0] = 1;
2111         else
2112                 ucontrol->value.integer.value[0] = 0;
2113 
2114         return 0;
2115 }
2116 
2117 /*
2118  *      Game Theatre XP card - EGPIO[0] is used to select SPDIF input optical or coaxial.
2119  */ 
2120 static int snd_herc_spdif_select_put(struct snd_kcontrol *kcontrol, 
2121                                        struct snd_ctl_elem_value *ucontrol)
2122 {
2123         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2124         int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
2125         int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
2126 
2127         if (ucontrol->value.integer.value[0]) {
2128                 /* optical is default */
2129                 snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, 
2130                                    EGPIODR_GPOE0 | val1);  /* enable EGPIO0 output */
2131                 snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, 
2132                                    EGPIOPTR_GPPT0 | val2); /* open-drain on output */
2133         } else {
2134                 /* coaxial */
2135                 snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE0); /* disable */
2136                 snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT0); /* disable */
2137         }
2138 
2139         /* checking diff from the EGPIO direction register 
2140            should be enough */
2141         return (val1 != (int)snd_cs46xx_peekBA0(chip, BA0_EGPIODR));
2142 }
2143 
2144 
2145 static int snd_cs46xx_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2146 {
2147         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2148         uinfo->count = 1;
2149         return 0;
2150 }
2151 
2152 static int snd_cs46xx_spdif_default_get(struct snd_kcontrol *kcontrol,
2153                                         struct snd_ctl_elem_value *ucontrol)
2154 {
2155         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2156         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2157 
2158         mutex_lock(&chip->spos_mutex);
2159         ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_default >> 24) & 0xff);
2160         ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_default >> 16) & 0xff);
2161         ucontrol->value.iec958.status[2] = 0;
2162         ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_default) & 0xff);
2163         mutex_unlock(&chip->spos_mutex);
2164 
2165         return 0;
2166 }
2167 
2168 static int snd_cs46xx_spdif_default_put(struct snd_kcontrol *kcontrol,
2169                                         struct snd_ctl_elem_value *ucontrol)
2170 {
2171         struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
2172         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2173         unsigned int val;
2174         int change;
2175 
2176         mutex_lock(&chip->spos_mutex);
2177         val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2178                 ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[2]) << 16) |
2179                 ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3]))  |
2180                 /* left and right validity bit */
2181                 (1 << 13) | (1 << 12);
2182 
2183 
2184         change = (unsigned int)ins->spdif_csuv_default != val;
2185         ins->spdif_csuv_default = val;
2186 
2187         if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) )
2188                 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2189 
2190         mutex_unlock(&chip->spos_mutex);
2191 
2192         return change;
2193 }
2194 
2195 static int snd_cs46xx_spdif_mask_get(struct snd_kcontrol *kcontrol,
2196                                      struct snd_ctl_elem_value *ucontrol)
2197 {
2198         ucontrol->value.iec958.status[0] = 0xff;
2199         ucontrol->value.iec958.status[1] = 0xff;
2200         ucontrol->value.iec958.status[2] = 0x00;
2201         ucontrol->value.iec958.status[3] = 0xff;
2202         return 0;
2203 }
2204 
2205 static int snd_cs46xx_spdif_stream_get(struct snd_kcontrol *kcontrol,
2206                                          struct snd_ctl_elem_value *ucontrol)
2207 {
2208         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2209         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2210 
2211         mutex_lock(&chip->spos_mutex);
2212         ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_stream >> 24) & 0xff);
2213         ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_stream >> 16) & 0xff);
2214         ucontrol->value.iec958.status[2] = 0;
2215         ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_stream) & 0xff);
2216         mutex_unlock(&chip->spos_mutex);
2217 
2218         return 0;
2219 }
2220 
2221 static int snd_cs46xx_spdif_stream_put(struct snd_kcontrol *kcontrol,
2222                                         struct snd_ctl_elem_value *ucontrol)
2223 {
2224         struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
2225         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
2226         unsigned int val;
2227         int change;
2228 
2229         mutex_lock(&chip->spos_mutex);
2230         val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
2231                 ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[1]) << 16) |
2232                 ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3])) |
2233                 /* left and right validity bit */
2234                 (1 << 13) | (1 << 12);
2235 
2236 
2237         change = ins->spdif_csuv_stream != val;
2238         ins->spdif_csuv_stream = val;
2239 
2240         if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN )
2241                 cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
2242 
2243         mutex_unlock(&chip->spos_mutex);
2244 
2245         return change;
2246 }
2247 
2248 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2249 
2250 
2251 static struct snd_kcontrol_new snd_cs46xx_controls[] = {
2252 {
2253         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2254         .name = "DAC Volume",
2255         .info = snd_cs46xx_vol_info,
2256 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2257         .get = snd_cs46xx_vol_get,
2258         .put = snd_cs46xx_vol_put,
2259         .private_value = BA1_PVOL,
2260 #else
2261         .get = snd_cs46xx_vol_dac_get,
2262         .put = snd_cs46xx_vol_dac_put,
2263 #endif
2264 },
2265 
2266 {
2267         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2268         .name = "ADC Volume",
2269         .info = snd_cs46xx_vol_info,
2270         .get = snd_cs46xx_vol_get,
2271         .put = snd_cs46xx_vol_put,
2272 #ifndef CONFIG_SND_CS46XX_NEW_DSP
2273         .private_value = BA1_CVOL,
2274 #else
2275         .private_value = (VARIDECIMATE_SCB_ADDR + 0xE) << 2,
2276 #endif
2277 },
2278 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2279 {
2280         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2281         .name = "ADC Capture Switch",
2282         .info = snd_mixer_boolean_info,
2283         .get = snd_cs46xx_adc_capture_get,
2284         .put = snd_cs46xx_adc_capture_put
2285 },
2286 {
2287         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2288         .name = "DAC Capture Switch",
2289         .info = snd_mixer_boolean_info,
2290         .get = snd_cs46xx_pcm_capture_get,
2291         .put = snd_cs46xx_pcm_capture_put
2292 },
2293 {
2294         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2295         .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
2296         .info = snd_mixer_boolean_info,
2297         .get = snd_cs46xx_iec958_get,
2298         .put = snd_cs46xx_iec958_put,
2299         .private_value = CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT,
2300 },
2301 {
2302         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2303         .name = SNDRV_CTL_NAME_IEC958("Input ",NONE,SWITCH),
2304         .info = snd_mixer_boolean_info,
2305         .get = snd_cs46xx_iec958_get,
2306         .put = snd_cs46xx_iec958_put,
2307         .private_value = CS46XX_MIXER_SPDIF_INPUT_ELEMENT,
2308 },
2309 #if 0
2310 /* Input IEC958 volume does not work for the moment. (Benny) */
2311 {
2312         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2313         .name = SNDRV_CTL_NAME_IEC958("Input ",NONE,VOLUME),
2314         .info = snd_cs46xx_vol_info,
2315         .get = snd_cs46xx_vol_iec958_get,
2316         .put = snd_cs46xx_vol_iec958_put,
2317         .private_value = (ASYNCRX_SCB_ADDR + 0xE) << 2,
2318 },
2319 #endif
2320 {
2321         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
2322         .name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2323         .info =  snd_cs46xx_spdif_info,
2324         .get =   snd_cs46xx_spdif_default_get,
2325         .put =   snd_cs46xx_spdif_default_put,
2326 },
2327 {
2328         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
2329         .name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
2330         .info =  snd_cs46xx_spdif_info,
2331         .get =   snd_cs46xx_spdif_mask_get,
2332         .access = SNDRV_CTL_ELEM_ACCESS_READ
2333 },
2334 {
2335         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
2336         .name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2337         .info =  snd_cs46xx_spdif_info,
2338         .get =   snd_cs46xx_spdif_stream_get,
2339         .put =   snd_cs46xx_spdif_stream_put
2340 },
2341 
2342 #endif
2343 };
2344 
2345 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2346 /* set primary cs4294 codec into Extended Audio Mode */
2347 static int snd_cs46xx_front_dup_get(struct snd_kcontrol *kcontrol, 
2348                                     struct snd_ctl_elem_value *ucontrol)
2349 {
2350         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2351         unsigned short val;
2352         val = snd_ac97_read(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX], AC97_CSR_ACMODE);
2353         ucontrol->value.integer.value[0] = (val & 0x200) ? 0 : 1;
2354         return 0;
2355 }
2356 
2357 static int snd_cs46xx_front_dup_put(struct snd_kcontrol *kcontrol, 
2358                                     struct snd_ctl_elem_value *ucontrol)
2359 {
2360         struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
2361         return snd_ac97_update_bits(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2362                                     AC97_CSR_ACMODE, 0x200,
2363                                     ucontrol->value.integer.value[0] ? 0 : 0x200);
2364 }
2365 
2366 static const struct snd_kcontrol_new snd_cs46xx_front_dup_ctl = {
2367         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2368         .name = "Duplicate Front",
2369         .info = snd_mixer_boolean_info,
2370         .get = snd_cs46xx_front_dup_get,
2371         .put = snd_cs46xx_front_dup_put,
2372 };
2373 #endif
2374 
2375 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2376 /* Only available on the Hercules Game Theater XP soundcard */
2377 static struct snd_kcontrol_new snd_hercules_controls[] = {
2378 {
2379         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2380         .name = "Optical/Coaxial SPDIF Input Switch",
2381         .info = snd_mixer_boolean_info,
2382         .get = snd_herc_spdif_select_get,
2383         .put = snd_herc_spdif_select_put,
2384 },
2385 };
2386 
2387 
2388 static void snd_cs46xx_codec_reset (struct snd_ac97 * ac97)
2389 {
2390         unsigned long end_time;
2391         int err;
2392 
2393         /* reset to defaults */
2394         snd_ac97_write(ac97, AC97_RESET, 0);    
2395 
2396         /* set the desired CODEC mode */
2397         if (ac97->num == CS46XX_PRIMARY_CODEC_INDEX) {
2398                 dev_dbg(ac97->bus->card->dev, "CODEC1 mode %04x\n", 0x0);
2399                 snd_cs46xx_ac97_write(ac97, AC97_CSR_ACMODE, 0x0);
2400         } else if (ac97->num == CS46XX_SECONDARY_CODEC_INDEX) {
2401                 dev_dbg(ac97->bus->card->dev, "CODEC2 mode %04x\n", 0x3);
2402                 snd_cs46xx_ac97_write(ac97, AC97_CSR_ACMODE, 0x3);
2403         } else {
2404                 snd_BUG(); /* should never happen ... */
2405         }
2406 
2407         udelay(50);
2408 
2409         /* it's necessary to wait awhile until registers are accessible after RESET */
2410         /* because the PCM or MASTER volume registers can be modified, */
2411         /* the REC_GAIN register is used for tests */
2412         end_time = jiffies + HZ;
2413         do {
2414                 unsigned short ext_mid;
2415     
2416                 /* use preliminary reads to settle the communication */
2417                 snd_ac97_read(ac97, AC97_RESET);
2418                 snd_ac97_read(ac97, AC97_VENDOR_ID1);
2419                 snd_ac97_read(ac97, AC97_VENDOR_ID2);
2420                 /* modem? */
2421                 ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2422                 if (ext_mid != 0xffff && (ext_mid & 1) != 0)
2423                         return;
2424 
2425                 /* test if we can write to the record gain volume register */
2426                 snd_ac97_write(ac97, AC97_REC_GAIN, 0x8a05);
2427                 if ((err = snd_ac97_read(ac97, AC97_REC_GAIN)) == 0x8a05)
2428                         return;
2429 
2430                 msleep(10);
2431         } while (time_after_eq(end_time, jiffies));
2432 
2433         dev_err(ac97->bus->card->dev,
2434                 "CS46xx secondary codec doesn't respond!\n");
2435 }
2436 #endif
2437 
2438 static int cs46xx_detect_codec(struct snd_cs46xx *chip, int codec)
2439 {
2440         int idx, err;
2441         struct snd_ac97_template ac97;
2442 
2443         memset(&ac97, 0, sizeof(ac97));
2444         ac97.private_data = chip;
2445         ac97.private_free = snd_cs46xx_mixer_free_ac97;
2446         ac97.num = codec;
2447         if (chip->amplifier_ctrl == amp_voyetra)
2448                 ac97.scaps = AC97_SCAP_INV_EAPD;
2449 
2450         if (codec == CS46XX_SECONDARY_CODEC_INDEX) {
2451                 snd_cs46xx_codec_write(chip, AC97_RESET, 0, codec);
2452                 udelay(10);
2453                 if (snd_cs46xx_codec_read(chip, AC97_RESET, codec) & 0x8000) {
2454                         dev_dbg(chip->card->dev,
2455                                 "secondary codec not present\n");
2456                         return -ENXIO;
2457                 }
2458         }
2459 
2460         snd_cs46xx_codec_write(chip, AC97_MASTER, 0x8000, codec);
2461         for (idx = 0; idx < 100; ++idx) {
2462                 if (snd_cs46xx_codec_read(chip, AC97_MASTER, codec) == 0x8000) {
2463                         err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97[codec]);
2464                         return err;
2465                 }
2466                 msleep(10);
2467         }
2468         dev_dbg(chip->card->dev, "codec %d detection timeout\n", codec);
2469         return -ENXIO;
2470 }
2471 
2472 int snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device)
2473 {
2474         struct snd_card *card = chip->card;
2475         struct snd_ctl_elem_id id;
2476         int err;
2477         unsigned int idx;
2478         static struct snd_ac97_bus_ops ops = {
2479 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2480                 .reset = snd_cs46xx_codec_reset,
2481 #endif
2482                 .write = snd_cs46xx_ac97_write,
2483                 .read = snd_cs46xx_ac97_read,
2484         };
2485 
2486         /* detect primary codec */
2487         chip->nr_ac97_codecs = 0;
2488         dev_dbg(chip->card->dev, "detecting primary codec\n");
2489         if ((err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus)) < 0)
2490                 return err;
2491         chip->ac97_bus->private_free = snd_cs46xx_mixer_free_ac97_bus;
2492 
2493         if (cs46xx_detect_codec(chip, CS46XX_PRIMARY_CODEC_INDEX) < 0)
2494                 return -ENXIO;
2495         chip->nr_ac97_codecs = 1;
2496 
2497 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2498         dev_dbg(chip->card->dev, "detecting secondary codec\n");
2499         /* try detect a secondary codec */
2500         if (! cs46xx_detect_codec(chip, CS46XX_SECONDARY_CODEC_INDEX))
2501                 chip->nr_ac97_codecs = 2;
2502 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
2503 
2504         /* add cs4630 mixer controls */
2505         for (idx = 0; idx < ARRAY_SIZE(snd_cs46xx_controls); idx++) {
2506                 struct snd_kcontrol *kctl;
2507                 kctl = snd_ctl_new1(&snd_cs46xx_controls[idx], chip);
2508                 if (kctl && kctl->id.iface == SNDRV_CTL_ELEM_IFACE_PCM)
2509                         kctl->id.device = spdif_device;
2510                 if ((err = snd_ctl_add(card, kctl)) < 0)
2511                         return err;
2512         }
2513 
2514         /* get EAPD mixer switch (for voyetra hack) */
2515         memset(&id, 0, sizeof(id));
2516         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2517         strcpy(id.name, "External Amplifier");
2518         chip->eapd_switch = snd_ctl_find_id(chip->card, &id);
2519     
2520 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2521         if (chip->nr_ac97_codecs == 1) {
2522                 unsigned int id2 = chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]->id & 0xffff;
2523                 if ((id2 & 0xfff0) == 0x5920) { /* CS4294 and CS4298 */
2524                         err = snd_ctl_add(card, snd_ctl_new1(&snd_cs46xx_front_dup_ctl, chip));
2525                         if (err < 0)
2526                                 return err;
2527                         snd_ac97_write_cache(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
2528                                              AC97_CSR_ACMODE, 0x200);
2529                 }
2530         }
2531         /* do soundcard specific mixer setup */
2532         if (chip->mixer_init) {
2533                 dev_dbg(chip->card->dev, "calling chip->mixer_init(chip);\n");
2534                 chip->mixer_init(chip);
2535         }
2536 #endif
2537 
2538         /* turn on amplifier */
2539         chip->amplifier_ctrl(chip, 1);
2540     
2541         return 0;
2542 }
2543 
2544 /*
2545  *  RawMIDI interface
2546  */
2547 
2548 static void snd_cs46xx_midi_reset(struct snd_cs46xx *chip)
2549 {
2550         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, MIDCR_MRST);
2551         udelay(100);
2552         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2553 }
2554 
2555 static int snd_cs46xx_midi_input_open(struct snd_rawmidi_substream *substream)
2556 {
2557         struct snd_cs46xx *chip = substream->rmidi->private_data;
2558 
2559         chip->active_ctrl(chip, 1);
2560         spin_lock_irq(&chip->reg_lock);
2561         chip->uartm |= CS46XX_MODE_INPUT;
2562         chip->midcr |= MIDCR_RXE;
2563         chip->midi_input = substream;
2564         if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2565                 snd_cs46xx_midi_reset(chip);
2566         } else {
2567                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2568         }
2569         spin_unlock_irq(&chip->reg_lock);
2570         return 0;
2571 }
2572 
2573 static int snd_cs46xx_midi_input_close(struct snd_rawmidi_substream *substream)
2574 {
2575         struct snd_cs46xx *chip = substream->rmidi->private_data;
2576 
2577         spin_lock_irq(&chip->reg_lock);
2578         chip->midcr &= ~(MIDCR_RXE | MIDCR_RIE);
2579         chip->midi_input = NULL;
2580         if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
2581                 snd_cs46xx_midi_reset(chip);
2582         } else {
2583                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2584         }
2585         chip->uartm &= ~CS46XX_MODE_INPUT;
2586         spin_unlock_irq(&chip->reg_lock);
2587         chip->active_ctrl(chip, -1);
2588         return 0;
2589 }
2590 
2591 static int snd_cs46xx_midi_output_open(struct snd_rawmidi_substream *substream)
2592 {
2593         struct snd_cs46xx *chip = substream->rmidi->private_data;
2594 
2595         chip->active_ctrl(chip, 1);
2596 
2597         spin_lock_irq(&chip->reg_lock);
2598         chip->uartm |= CS46XX_MODE_OUTPUT;
2599         chip->midcr |= MIDCR_TXE;
2600         chip->midi_output = substream;
2601         if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2602                 snd_cs46xx_midi_reset(chip);
2603         } else {
2604                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2605         }
2606         spin_unlock_irq(&chip->reg_lock);
2607         return 0;
2608 }
2609 
2610 static int snd_cs46xx_midi_output_close(struct snd_rawmidi_substream *substream)
2611 {
2612         struct snd_cs46xx *chip = substream->rmidi->private_data;
2613 
2614         spin_lock_irq(&chip->reg_lock);
2615         chip->midcr &= ~(MIDCR_TXE | MIDCR_TIE);
2616         chip->midi_output = NULL;
2617         if (!(chip->uartm & CS46XX_MODE_INPUT)) {
2618                 snd_cs46xx_midi_reset(chip);
2619         } else {
2620                 snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2621         }
2622         chip->uartm &= ~CS46XX_MODE_OUTPUT;
2623         spin_unlock_irq(&chip->reg_lock);
2624         chip->active_ctrl(chip, -1);
2625         return 0;
2626 }
2627 
2628 static void snd_cs46xx_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
2629 {
2630         unsigned long flags;
2631         struct snd_cs46xx *chip = substream->rmidi->private_data;
2632 
2633         spin_lock_irqsave(&chip->reg_lock, flags);
2634         if (up) {
2635                 if ((chip->midcr & MIDCR_RIE) == 0) {
2636                         chip->midcr |= MIDCR_RIE;
2637                         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2638                 }
2639         } else {
2640                 if (chip->midcr & MIDCR_RIE) {
2641                         chip->midcr &= ~MIDCR_RIE;
2642                         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2643                 }
2644         }
2645         spin_unlock_irqrestore(&chip->reg_lock, flags);
2646 }
2647 
2648 static void snd_cs46xx_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
2649 {
2650         unsigned long flags;
2651         struct snd_cs46xx *chip = substream->rmidi->private_data;
2652         unsigned char byte;
2653 
2654         spin_lock_irqsave(&chip->reg_lock, flags);
2655         if (up) {
2656                 if ((chip->midcr & MIDCR_TIE) == 0) {
2657                         chip->midcr |= MIDCR_TIE;
2658                         /* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */
2659                         while ((chip->midcr & MIDCR_TIE) &&
2660                                (snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
2661                                 if (snd_rawmidi_transmit(substream, &byte, 1) != 1) {
2662                                         chip->midcr &= ~MIDCR_TIE;
2663                                 } else {
2664                                         snd_cs46xx_pokeBA0(chip, BA0_MIDWP, byte);
2665                                 }
2666                         }
2667                         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2668                 }
2669         } else {
2670                 if (chip->midcr & MIDCR_TIE) {
2671                         chip->midcr &= ~MIDCR_TIE;
2672                         snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
2673                 }
2674         }
2675         spin_unlock_irqrestore(&chip->reg_lock, flags);
2676 }
2677 
2678 static const struct snd_rawmidi_ops snd_cs46xx_midi_output =
2679 {
2680         .open =         snd_cs46xx_midi_output_open,
2681         .close =        snd_cs46xx_midi_output_close,
2682         .trigger =      snd_cs46xx_midi_output_trigger,
2683 };
2684 
2685 static const struct snd_rawmidi_ops snd_cs46xx_midi_input =
2686 {
2687         .open =         snd_cs46xx_midi_input_open,
2688         .close =        snd_cs46xx_midi_input_close,
2689         .trigger =      snd_cs46xx_midi_input_trigger,
2690 };
2691 
2692 int snd_cs46xx_midi(struct snd_cs46xx *chip, int device)
2693 {
2694         struct snd_rawmidi *rmidi;
2695         int err;
2696 
2697         if ((err = snd_rawmidi_new(chip->card, "CS46XX", device, 1, 1, &rmidi)) < 0)
2698                 return err;
2699         strcpy(rmidi->name, "CS46XX");
2700         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_cs46xx_midi_output);
2701         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_cs46xx_midi_input);
2702         rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX;
2703         rmidi->private_data = chip;
2704         chip->rmidi = rmidi;
2705         return 0;
2706 }
2707 
2708 
2709 /*
2710  * gameport interface
2711  */
2712 
2713 #if IS_REACHABLE(CONFIG_GAMEPORT)
2714 
2715 static void snd_cs46xx_gameport_trigger(struct gameport *gameport)
2716 {
2717         struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2718 
2719         if (snd_BUG_ON(!chip))
2720                 return;
2721         snd_cs46xx_pokeBA0(chip, BA0_JSPT, 0xFF);  //outb(gameport->io, 0xFF);
2722 }
2723 
2724 static unsigned char snd_cs46xx_gameport_read(struct gameport *gameport)
2725 {
2726         struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2727 
2728         if (snd_BUG_ON(!chip))
2729                 return 0;
2730         return snd_cs46xx_peekBA0(chip, BA0_JSPT); //inb(gameport->io);
2731 }
2732 
2733 static int snd_cs46xx_gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
2734 {
2735         struct snd_cs46xx *chip = gameport_get_port_data(gameport);
2736         unsigned js1, js2, jst;
2737 
2738         if (snd_BUG_ON(!chip))
2739                 return 0;
2740 
2741         js1 = snd_cs46xx_peekBA0(chip, BA0_JSC1);
2742         js2 = snd_cs46xx_peekBA0(chip, BA0_JSC2);
2743         jst = snd_cs46xx_peekBA0(chip, BA0_JSPT);
2744         
2745         *buttons = (~jst >> 4) & 0x0F; 
2746         
2747         axes[0] = ((js1 & JSC1_Y1V_MASK) >> JSC1_Y1V_SHIFT) & 0xFFFF;
2748         axes[1] = ((js1 & JSC1_X1V_MASK) >> JSC1_X1V_SHIFT) & 0xFFFF;
2749         axes[2] = ((js2 & JSC2_Y2V_MASK) >> JSC2_Y2V_SHIFT) & 0xFFFF;
2750         axes[3] = ((js2 & JSC2_X2V_MASK) >> JSC2_X2V_SHIFT) & 0xFFFF;
2751 
2752         for(jst=0;jst<4;++jst)
2753                 if(axes[jst]==0xFFFF) axes[jst] = -1;
2754         return 0;
2755 }
2756 
2757 static int snd_cs46xx_gameport_open(struct gameport *gameport, int mode)
2758 {
2759         switch (mode) {
2760         case GAMEPORT_MODE_COOKED:
2761                 return 0;
2762         case GAMEPORT_MODE_RAW:
2763                 return 0;
2764         default:
2765                 return -1;
2766         }
2767         return 0;
2768 }
2769 
2770 int snd_cs46xx_gameport(struct snd_cs46xx *chip)
2771 {
2772         struct gameport *gp;
2773 
2774         chip->gameport = gp = gameport_allocate_port();
2775         if (!gp) {
2776                 dev_err(chip->card->dev,
2777                         "cannot allocate memory for gameport\n");
2778                 return -ENOMEM;
2779         }
2780 
2781         gameport_set_name(gp, "CS46xx Gameport");
2782         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
2783         gameport_set_dev_parent(gp, &chip->pci->dev);
2784         gameport_set_port_data(gp, chip);
2785 
2786         gp->open = snd_cs46xx_gameport_open;
2787         gp->read = snd_cs46xx_gameport_read;
2788         gp->trigger = snd_cs46xx_gameport_trigger;
2789         gp->cooked_read = snd_cs46xx_gameport_cooked_read;
2790 
2791         snd_cs46xx_pokeBA0(chip, BA0_JSIO, 0xFF); // ?
2792         snd_cs46xx_pokeBA0(chip, BA0_JSCTL, JSCTL_SP_MEDIUM_SLOW);
2793 
2794         gameport_register_port(gp);
2795 
2796         return 0;
2797 }
2798 
2799 static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip)
2800 {
2801         if (chip->gameport) {
2802                 gameport_unregister_port(chip->gameport);
2803                 chip->gameport = NULL;
2804         }
2805 }
2806 #else
2807 int snd_cs46xx_gameport(struct snd_cs46xx *chip) { return -ENOSYS; }
2808 static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip) { }
2809 #endif /* CONFIG_GAMEPORT */
2810 
2811 #ifdef CONFIG_SND_PROC_FS
2812 /*
2813  *  proc interface
2814  */
2815 
2816 static ssize_t snd_cs46xx_io_read(struct snd_info_entry *entry,
2817                                   void *file_private_data,
2818                                   struct file *file, char __user *buf,
2819                                   size_t count, loff_t pos)
2820 {
2821         struct snd_cs46xx_region *region = entry->private_data;
2822         
2823         if (copy_to_user_fromio(buf, region->remap_addr + pos, count))
2824                 return -EFAULT;
2825         return count;
2826 }
2827 
2828 static struct snd_info_entry_ops snd_cs46xx_proc_io_ops = {
2829         .read = snd_cs46xx_io_read,
2830 };
2831 
2832 static int snd_cs46xx_proc_init(struct snd_card *card, struct snd_cs46xx *chip)
2833 {
2834         struct snd_info_entry *entry;
2835         int idx;
2836         
2837         for (idx = 0; idx < 5; idx++) {
2838                 struct snd_cs46xx_region *region = &chip->region.idx[idx];
2839                 if (! snd_card_proc_new(card, region->name, &entry)) {
2840                         entry->content = SNDRV_INFO_CONTENT_DATA;
2841                         entry->private_data = chip;
2842                         entry->c.ops = &snd_cs46xx_proc_io_ops;
2843                         entry->size = region->size;
2844                         entry->mode = S_IFREG | 0400;
2845                 }
2846         }
2847 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2848         cs46xx_dsp_proc_init(card, chip);
2849 #endif
2850         return 0;
2851 }
2852 
2853 static int snd_cs46xx_proc_done(struct snd_cs46xx *chip)
2854 {
2855 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2856         cs46xx_dsp_proc_done(chip);
2857 #endif
2858         return 0;
2859 }
2860 #else /* !CONFIG_SND_PROC_FS */
2861 #define snd_cs46xx_proc_init(card, chip)
2862 #define snd_cs46xx_proc_done(chip)
2863 #endif
2864 
2865 /*
2866  * stop the h/w
2867  */
2868 static void snd_cs46xx_hw_stop(struct snd_cs46xx *chip)
2869 {
2870         unsigned int tmp;
2871 
2872         tmp = snd_cs46xx_peek(chip, BA1_PFIE);
2873         tmp &= ~0x0000f03f;
2874         tmp |=  0x00000010;
2875         snd_cs46xx_poke(chip, BA1_PFIE, tmp);   /* playback interrupt disable */
2876 
2877         tmp = snd_cs46xx_peek(chip, BA1_CIE);
2878         tmp &= ~0x0000003f;
2879         tmp |=  0x00000011;
2880         snd_cs46xx_poke(chip, BA1_CIE, tmp);    /* capture interrupt disable */
2881 
2882         /*
2883          *  Stop playback DMA.
2884          */
2885         tmp = snd_cs46xx_peek(chip, BA1_PCTL);
2886         snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
2887 
2888         /*
2889          *  Stop capture DMA.
2890          */
2891         tmp = snd_cs46xx_peek(chip, BA1_CCTL);
2892         snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
2893 
2894         /*
2895          *  Reset the processor.
2896          */
2897         snd_cs46xx_reset(chip);
2898 
2899         snd_cs46xx_proc_stop(chip);
2900 
2901         /*
2902          *  Power down the PLL.
2903          */
2904         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
2905 
2906         /*
2907          *  Turn off the Processor by turning off the software clock enable flag in 
2908          *  the clock control register.
2909          */
2910         tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE;
2911         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
2912 }
2913 
2914 
2915 static int snd_cs46xx_free(struct snd_cs46xx *chip)
2916 {
2917         int idx;
2918 
2919         if (snd_BUG_ON(!chip))
2920                 return -EINVAL;
2921 
2922         if (chip->active_ctrl)
2923                 chip->active_ctrl(chip, 1);
2924 
2925         snd_cs46xx_remove_gameport(chip);
2926 
2927         if (chip->amplifier_ctrl)
2928                 chip->amplifier_ctrl(chip, -chip->amplifier); /* force to off */
2929         
2930         snd_cs46xx_proc_done(chip);
2931 
2932         if (chip->region.idx[0].resource)
2933                 snd_cs46xx_hw_stop(chip);
2934 
2935         if (chip->irq >= 0)
2936                 free_irq(chip->irq, chip);
2937 
2938         if (chip->active_ctrl)
2939                 chip->active_ctrl(chip, -chip->amplifier);
2940 
2941         for (idx = 0; idx < 5; idx++) {
2942                 struct snd_cs46xx_region *region = &chip->region.idx[idx];
2943 
2944                 iounmap(region->remap_addr);
2945                 release_and_free_resource(region->resource);
2946         }
2947 
2948 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2949         if (chip->dsp_spos_instance) {
2950                 cs46xx_dsp_spos_destroy(chip);
2951                 chip->dsp_spos_instance = NULL;
2952         }
2953         for (idx = 0; idx < CS46XX_DSP_MODULES; idx++)
2954                 free_module_desc(chip->modules[idx]);
2955 #else
2956         vfree(chip->ba1);
2957 #endif
2958         
2959 #ifdef CONFIG_PM_SLEEP
2960         kfree(chip->saved_regs);
2961 #endif
2962 
2963         pci_disable_device(chip->pci);
2964         kfree(chip);
2965         return 0;
2966 }
2967 
2968 static int snd_cs46xx_dev_free(struct snd_device *device)
2969 {
2970         struct snd_cs46xx *chip = device->device_data;
2971         return snd_cs46xx_free(chip);
2972 }
2973 
2974 /*
2975  *  initialize chip
2976  */
2977 static int snd_cs46xx_chip_init(struct snd_cs46xx *chip)
2978 {
2979         int timeout;
2980 
2981         /* 
2982          *  First, blast the clock control register to zero so that the PLL starts
2983          *  out in a known state, and blast the master serial port control register
2984          *  to zero so that the serial ports also start out in a known state.
2985          */
2986         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
2987         snd_cs46xx_pokeBA0(chip, BA0_SERMC1, 0);
2988 
2989         /*
2990          *  If we are in AC97 mode, then we must set the part to a host controlled
2991          *  AC-link.  Otherwise, we won't be able to bring up the link.
2992          */        
2993 #ifdef CONFIG_SND_CS46XX_NEW_DSP
2994         snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0 | 
2995                            SERACC_TWO_CODECS);  /* 2.00 dual codecs */
2996         /* snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0); */ /* 2.00 codec */
2997 #else
2998         snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_1_03); /* 1.03 codec */
2999 #endif
3000 
3001         /*
3002          *  Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97
3003          *  spec) and then drive it high.  This is done for non AC97 modes since
3004          *  there might be logic external to the CS461x that uses the ARST# line
3005          *  for a reset.
3006          */
3007         snd_cs46xx_pokeBA0(chip, BA0_ACCTL, 0);
3008 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3009         snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, 0);
3010 #endif
3011         udelay(50);
3012         snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_RSTN);
3013 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3014         snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_RSTN);
3015 #endif
3016     
3017         /*
3018          *  The first thing we do here is to enable sync generation.  As soon
3019          *  as we start receiving bit clock, we'll start producing the SYNC
3020          *  signal.
3021          */
3022         snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_ESYN | ACCTL_RSTN);
3023 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3024         snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_ESYN | ACCTL_RSTN);
3025 #endif
3026 
3027         /*
3028          *  Now wait for a short while to allow the AC97 part to start
3029          *  generating bit clock (so we don't try to start the PLL without an
3030          *  input clock).
3031          */
3032         mdelay(10);
3033 
3034         /*
3035          *  Set the serial port timing configuration, so that
3036          *  the clock control circuit gets its clock from the correct place.
3037          */
3038         snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97);
3039 
3040         /*
3041          *  Write the selected clock control setup to the hardware.  Do not turn on
3042          *  SWCE yet (if requested), so that the devices clocked by the output of
3043          *  PLL are not clocked until the PLL is stable.
3044          */
3045         snd_cs46xx_pokeBA0(chip, BA0_PLLCC, PLLCC_LPF_1050_2780_KHZ | PLLCC_CDR_73_104_MHZ);
3046         snd_cs46xx_pokeBA0(chip, BA0_PLLM, 0x3a);
3047         snd_cs46xx_pokeBA0(chip, BA0_CLKCR2, CLKCR2_PDIVS_8);
3048 
3049         /*
3050          *  Power up the PLL.
3051          */
3052         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP);
3053 
3054         /*
3055          *  Wait until the PLL has stabilized.
3056          */
3057         msleep(100);
3058 
3059         /*
3060          *  Turn on clocking of the core so that we can setup the serial ports.
3061          */
3062         snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP | CLKCR1_SWCE);
3063 
3064         /*
3065          * Enable FIFO  Host Bypass
3066          */
3067         snd_cs46xx_pokeBA0(chip, BA0_SERBCF, SERBCF_HBP);
3068 
3069         /*
3070          *  Fill the serial port FIFOs with silence.
3071          */
3072         snd_cs46xx_clear_serial_FIFOs(chip);
3073 
3074         /*
3075          *  Set the serial port FIFO pointer to the first sample in the FIFO.
3076          */
3077         /* snd_cs46xx_pokeBA0(chip, BA0_SERBSP, 0); */
3078 
3079         /*
3080          *  Write the serial port configuration to the part.  The master
3081          *  enable bit is not set until all other values have been written.
3082          */
3083         snd_cs46xx_pokeBA0(chip, BA0_SERC1, SERC1_SO1F_AC97 | SERC1_SO1EN);
3084         snd_cs46xx_pokeBA0(chip, BA0_SERC2, SERC2_SI1F_AC97 | SERC1_SO1EN);
3085         snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97 | SERMC1_MSPE);
3086 
3087 
3088 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3089         snd_cs46xx_pokeBA0(chip, BA0_SERC7, SERC7_ASDI2EN);
3090         snd_cs46xx_pokeBA0(chip, BA0_SERC3, 0);
3091         snd_cs46xx_pokeBA0(chip, BA0_SERC4, 0);
3092         snd_cs46xx_pokeBA0(chip, BA0_SERC5, 0);
3093         snd_cs46xx_pokeBA0(chip, BA0_SERC6, 1);
3094 #endif
3095 
3096         mdelay(5);
3097 
3098 
3099         /*
3100          * Wait for the codec ready signal from the AC97 codec.
3101          */
3102         timeout = 150;
3103         while (timeout-- > 0) {
3104                 /*
3105                  *  Read the AC97 status register to see if we've seen a CODEC READY
3106                  *  signal from the AC97 codec.
3107                  */
3108                 if (snd_cs46xx_peekBA0(chip, BA0_ACSTS) & ACSTS_CRDY)
3109                         goto ok1;
3110                 msleep(10);
3111         }
3112 
3113 
3114         dev_err(chip->card->dev,
3115                 "create - never read codec ready from AC'97\n");
3116         dev_err(chip->card->dev,
3117                 "it is not probably bug, try to use CS4236 driver\n");
3118         return -EIO;
3119  ok1:
3120 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3121         {
3122                 int count;
3123                 for (count = 0; count < 150; count++) {
3124                         /* First, we want to wait for a short time. */
3125                         udelay(25);
3126         
3127                         if (snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY)
3128                                 break;
3129                 }
3130 
3131                 /*
3132                  *  Make sure CODEC is READY.
3133                  */
3134                 if (!(snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY))
3135                         dev_dbg(chip->card->dev,
3136                                 "never read card ready from secondary AC'97\n");
3137         }
3138 #endif
3139 
3140         /*
3141          *  Assert the vaid frame signal so that we can start sending commands
3142          *  to the AC97 codec.
3143          */
3144         snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
3145 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3146         snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
3147 #endif
3148 
3149 
3150         /*
3151          *  Wait until we've sampled input slots 3 and 4 as valid, meaning that
3152          *  the codec is pumping ADC data across the AC-link.
3153          */
3154         timeout = 150;
3155         while (timeout-- > 0) {
3156                 /*
3157                  *  Read the input slot valid register and see if input slots 3 and
3158                  *  4 are valid yet.
3159                  */
3160                 if ((snd_cs46xx_peekBA0(chip, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
3161                         goto ok2;
3162                 msleep(10);
3163         }
3164 
3165 #ifndef CONFIG_SND_CS46XX_NEW_DSP
3166         dev_err(chip->card->dev,
3167                 "create - never read ISV3 & ISV4 from AC'97\n");
3168         return -EIO;
3169 #else
3170         /* This may happen on a cold boot with a Terratec SiXPack 5.1.
3171            Reloading the driver may help, if there's other soundcards 
3172            with the same problem I would like to know. (Benny) */
3173 
3174         dev_err(chip->card->dev, "never read ISV3 & ISV4 from AC'97\n");
3175         dev_err(chip->card->dev,
3176                 "Try reloading the ALSA driver, if you find something\n");
3177         dev_err(chip->card->dev,
3178                 "broken or not working on your soundcard upon\n");
3179         dev_err(chip->card->dev,
3180                 "this message please report to alsa-devel@alsa-project.org\n");
3181 
3182         return -EIO;
3183 #endif
3184  ok2:
3185 
3186         /*
3187          *  Now, assert valid frame and the slot 3 and 4 valid bits.  This will
3188          *  commense the transfer of digital audio data to the AC97 codec.
3189          */
3190 
3191         snd_cs46xx_pokeBA0(chip, BA0_ACOSV, ACOSV_SLV3 | ACOSV_SLV4);
3192 
3193 
3194         /*
3195          *  Power down the DAC and ADC.  We will power them up (if) when we need
3196          *  them.
3197          */
3198         /* snd_cs46xx_pokeBA0(chip, BA0_AC97_POWERDOWN, 0x300); */
3199 
3200         /*
3201          *  Turn off the Processor by turning off the software clock enable flag in 
3202          *  the clock control register.
3203          */
3204         /* tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE; */
3205         /* snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp); */
3206 
3207         return 0;
3208 }
3209 
3210 /*
3211  *  start and load DSP 
3212  */
3213 
3214 static void cs46xx_enable_stream_irqs(struct snd_cs46xx *chip)
3215 {
3216         unsigned int tmp;
3217 
3218         snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_IEV | HICR_CHGM);
3219         
3220         tmp = snd_cs46xx_peek(chip, BA1_PFIE);
3221         tmp &= ~0x0000f03f;
3222         snd_cs46xx_poke(chip, BA1_PFIE, tmp);   /* playback interrupt enable */
3223 
3224         tmp = snd_cs46xx_peek(chip, BA1_CIE);
3225         tmp &= ~0x0000003f;
3226         tmp |=  0x00000001;
3227         snd_cs46xx_poke(chip, BA1_CIE, tmp);    /* capture interrupt enable */
3228 }
3229 
3230 int snd_cs46xx_start_dsp(struct snd_cs46xx *chip)
3231 {       
3232         unsigned int tmp;
3233 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3234         int i;
3235 #endif
3236         int err;
3237 
3238         /*
3239          *  Reset the processor.
3240          */
3241         snd_cs46xx_reset(chip);
3242         /*
3243          *  Download the image to the processor.
3244          */
3245 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3246         for (i = 0; i < CS46XX_DSP_MODULES; i++) {
3247                 err = load_firmware(chip, &chip->modules[i], module_names[i]);
3248                 if (err < 0) {
3249                         dev_err(chip->card->dev, "firmware load error [%s]\n",
3250                                    module_names[i]);
3251                         return err;
3252                 }
3253                 err = cs46xx_dsp_load_module(chip, chip->modules[i]);
3254                 if (err < 0) {
3255                         dev_err(chip->card->dev, "image download error [%s]\n",
3256                                    module_names[i]);
3257                         return err;
3258                 }
3259         }
3260 
3261         if (cs46xx_dsp_scb_and_task_init(chip) < 0)
3262                 return -EIO;
3263 #else
3264         err = load_firmware(chip);
3265         if (err < 0)
3266                 return err;
3267 
3268         /* old image */
3269         err = snd_cs46xx_download_image(chip);
3270         if (err < 0) {
3271                 dev_err(chip->card->dev, "image download error\n");
3272                 return err;
3273         }
3274 
3275         /*
3276          *  Stop playback DMA.
3277          */
3278         tmp = snd_cs46xx_peek(chip, BA1_PCTL);
3279         chip->play_ctl = tmp & 0xffff0000;
3280         snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
3281 #endif
3282 
3283         /*
3284          *  Stop capture DMA.
3285          */
3286         tmp = snd_cs46xx_peek(chip, BA1_CCTL);
3287         chip->capt.ctl = tmp & 0x0000ffff;
3288         snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
3289 
3290         mdelay(5);
3291 
3292         snd_cs46xx_set_play_sample_rate(chip, 8000);
3293         snd_cs46xx_set_capture_sample_rate(chip, 8000);
3294 
3295         snd_cs46xx_proc_start(chip);
3296 
3297         cs46xx_enable_stream_irqs(chip);
3298         
3299 #ifndef CONFIG_SND_CS46XX_NEW_DSP
3300         /* set the attenuation to 0dB */ 
3301         snd_cs46xx_poke(chip, BA1_PVOL, 0x80008000);
3302         snd_cs46xx_poke(chip, BA1_CVOL, 0x80008000);
3303 #endif
3304 
3305         return 0;
3306 }
3307 
3308 
3309 /*
3310  *      AMP control - null AMP
3311  */
3312  
3313 static void amp_none(struct snd_cs46xx *chip, int change)
3314 {       
3315 }
3316 
3317 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3318 static int voyetra_setup_eapd_slot(struct snd_cs46xx *chip)
3319 {
3320         
3321         u32 idx, valid_slots,tmp,powerdown = 0;
3322         u16 modem_power,pin_config,logic_type;
3323 
3324         dev_dbg(chip->card->dev, "cs46xx_setup_eapd_slot()+\n");
3325 
3326         /*
3327          *  See if the devices are powered down.  If so, we must power them up first
3328          *  or they will not respond.
3329          */
3330         tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
3331 
3332         if (!(tmp & CLKCR1_SWCE)) {
3333                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
3334                 powerdown = 1;
3335         }
3336 
3337         /*
3338          * Clear PRA.  The Bonzo chip will be used for GPIO not for modem
3339          * stuff.
3340          */
3341         if(chip->nr_ac97_codecs != 2) {
3342                 dev_err(chip->card->dev,
3343                         "cs46xx_setup_eapd_slot() - no secondary codec configured\n");
3344                 return -EINVAL;
3345         }
3346 
3347         modem_power = snd_cs46xx_codec_read (chip, 
3348                                              AC97_EXTENDED_MSTATUS,
3349                                              CS46XX_SECONDARY_CODEC_INDEX);
3350         modem_power &=0xFEFF;
3351 
3352         snd_cs46xx_codec_write(chip, 
3353                                AC97_EXTENDED_MSTATUS, modem_power,
3354                                CS46XX_SECONDARY_CODEC_INDEX);
3355 
3356         /*
3357          * Set GPIO pin's 7 and 8 so that they are configured for output.
3358          */
3359         pin_config = snd_cs46xx_codec_read (chip, 
3360                                             AC97_GPIO_CFG,
3361                                             CS46XX_SECONDARY_CODEC_INDEX);
3362         pin_config &=0x27F;
3363 
3364         snd_cs46xx_codec_write(chip, 
3365                                AC97_GPIO_CFG, pin_config,
3366                                CS46XX_SECONDARY_CODEC_INDEX);
3367     
3368         /*
3369          * Set GPIO pin's 7 and 8 so that they are compatible with CMOS logic.
3370          */
3371 
3372         logic_type = snd_cs46xx_codec_read(chip, AC97_GPIO_POLARITY,
3373                                            CS46XX_SECONDARY_CODEC_INDEX);
3374         logic_type &=0x27F; 
3375 
3376         snd_cs46xx_codec_write (chip, AC97_GPIO_POLARITY, logic_type,
3377                                 CS46XX_SECONDARY_CODEC_INDEX);
3378 
3379         valid_slots = snd_cs46xx_peekBA0(chip, BA0_ACOSV);
3380         valid_slots |= 0x200;
3381         snd_cs46xx_pokeBA0(chip, BA0_ACOSV, valid_slots);
3382 
3383         if ( cs46xx_wait_for_fifo(chip,1) ) {
3384                 dev_dbg(chip->card->dev, "FIFO is busy\n");
3385           
3386           return -EINVAL;
3387         }
3388 
3389         /*
3390          * Fill slots 12 with the correct value for the GPIO pins. 
3391          */
3392         for(idx = 0x90; idx <= 0x9F; idx++) {
3393                 /*
3394                  * Initialize the fifo so that bits 7 and 8 are on.
3395                  *
3396                  * Remember that the GPIO pins in bonzo are shifted by 4 bits to
3397                  * the left.  0x1800 corresponds to bits 7 and 8.
3398                  */
3399                 snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0x1800);
3400 
3401                 /*
3402                  * Wait for command to complete
3403                  */
3404                 if ( cs46xx_wait_for_fifo(chip,200) ) {
3405                         dev_dbg(chip->card->dev,
3406                                 "failed waiting for FIFO at addr (%02X)\n",
3407                                 idx);
3408 
3409                         return -EINVAL;
3410                 }
3411             
3412                 /*
3413                  * Write the serial port FIFO index.
3414                  */
3415                 snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
3416       
3417                 /*
3418                  * Tell the serial port to load the new value into the FIFO location.
3419                  */
3420                 snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
3421         }
3422 
3423         /* wait for last command to complete */
3424         cs46xx_wait_for_fifo(chip,200);
3425 
3426         /*
3427          *  Now, if we powered up the devices, then power them back down again.
3428          *  This is kinda ugly, but should never happen.
3429          */
3430         if (powerdown)
3431                 snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
3432 
3433         return 0;
3434 }
3435 #endif
3436 
3437 /*
3438  *      Crystal EAPD mode
3439  */
3440  
3441 static void amp_voyetra(struct snd_cs46xx *chip, int change)
3442 {
3443         /* Manage the EAPD bit on the Crystal 4297 
3444            and the Analog AD1885 */
3445            
3446 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3447         int old = chip->amplifier;
3448 #endif
3449         int oval, val;
3450         
3451         chip->amplifier += change;
3452         oval = snd_cs46xx_codec_read(chip, AC97_POWERDOWN,
3453                                      CS46XX_PRIMARY_CODEC_INDEX);
3454         val = oval;
3455         if (chip->amplifier) {
3456                 /* Turn the EAPD amp on */
3457                 val |= 0x8000;
3458         } else {
3459                 /* Turn the EAPD amp off */
3460                 val &= ~0x8000;
3461         }
3462         if (val != oval) {
3463                 snd_cs46xx_codec_write(chip, AC97_POWERDOWN, val,
3464                                        CS46XX_PRIMARY_CODEC_INDEX);
3465                 if (chip->eapd_switch)
3466                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
3467                                        &chip->eapd_switch->id);
3468         }
3469 
3470 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3471         if (chip->amplifier && !old) {
3472                 voyetra_setup_eapd_slot(chip);
3473         }
3474 #endif
3475 }
3476 
3477 static void hercules_init(struct snd_cs46xx *chip) 
3478 {
3479         /* default: AMP off, and SPDIF input optical */
3480         snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3481         snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3482 }
3483 
3484 
3485 /*
3486  *      Game Theatre XP card - EGPIO[2] is used to enable the external amp.
3487  */ 
3488 static void amp_hercules(struct snd_cs46xx *chip, int change)
3489 {
3490         int old = chip->amplifier;
3491         int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
3492         int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
3493 
3494         chip->amplifier += change;
3495         if (chip->amplifier && !old) {
3496                 dev_dbg(chip->card->dev, "Hercules amplifier ON\n");
3497 
3498                 snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, 
3499                                    EGPIODR_GPOE2 | val1);     /* enable EGPIO2 output */
3500                 snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, 
3501                                    EGPIOPTR_GPPT2 | val2);   /* open-drain on output */
3502         } else if (old && !chip->amplifier) {
3503                 dev_dbg(chip->card->dev, "Hercules amplifier OFF\n");
3504                 snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE2); /* disable */
3505                 snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT2); /* disable */
3506         }
3507 }
3508 
3509 static void voyetra_mixer_init (struct snd_cs46xx *chip)
3510 {
3511         dev_dbg(chip->card->dev, "initializing Voyetra mixer\n");
3512 
3513         /* Enable SPDIF out */
3514         snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
3515         snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
3516 }
3517 
3518 static void hercules_mixer_init (struct snd_cs46xx *chip)
3519 {
3520 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3521         unsigned int idx;
3522         int err;
3523         struct snd_card *card = chip->card;
3524 #endif
3525 
3526         /* set EGPIO to default */
3527         hercules_init(chip);
3528 
3529         dev_dbg(chip->card->dev, "initializing Hercules mixer\n");
3530 
3531 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3532         if (chip->in_suspend)
3533                 return;
3534 
3535         for (idx = 0 ; idx < ARRAY_SIZE(snd_hercules_controls); idx++) {
3536                 struct snd_kcontrol *kctl;
3537 
3538                 kctl = snd_ctl_new1(&snd_hercules_controls[idx], chip);
3539                 if ((err = snd_ctl_add(card, kctl)) < 0) {
3540                         dev_err(card->dev,
3541                                 "failed to initialize Hercules mixer (%d)\n",
3542                                 err);
3543                         break;
3544                 }
3545         }
3546 #endif
3547 }
3548 
3549 
3550 #if 0
3551 /*
3552  *      Untested
3553  */
3554  
3555 static void amp_voyetra_4294(struct snd_cs46xx *chip, int change)
3556 {
3557         chip->amplifier += change;
3558 
3559         if (chip->amplifier) {
3560                 /* Switch the GPIO pins 7 and 8 to open drain */
3561                 snd_cs46xx_codec_write(chip, 0x4C,
3562                                        snd_cs46xx_codec_read(chip, 0x4C) & 0xFE7F);
3563                 snd_cs46xx_codec_write(chip, 0x4E,
3564                                        snd_cs46xx_codec_read(chip, 0x4E) | 0x0180);
3565                 /* Now wake the AMP (this might be backwards) */
3566                 snd_cs46xx_codec_write(chip, 0x54,
3567                                        snd_cs46xx_codec_read(chip, 0x54) & ~0x0180);
3568         } else {
3569                 snd_cs46xx_codec_write(chip, 0x54,
3570                                        snd_cs46xx_codec_read(chip, 0x54) | 0x0180);
3571         }
3572 }
3573 #endif
3574 
3575 
3576 /*
3577  *      Handle the CLKRUN on a thinkpad. We must disable CLKRUN support
3578  *      whenever we need to beat on the chip.
3579  *
3580  *      The original idea and code for this hack comes from David Kaiser at
3581  *      Linuxcare. Perhaps one day Crystal will document their chips well
3582  *      enough to make them useful.
3583  */
3584  
3585 static void clkrun_hack(struct snd_cs46xx *chip, int change)
3586 {
3587         u16 control, nval;
3588         
3589         if (!chip->acpi_port)
3590                 return;
3591 
3592         chip->amplifier += change;
3593         
3594         /* Read ACPI port */    
3595         nval = control = inw(chip->acpi_port + 0x10);
3596 
3597         /* Flip CLKRUN off while running */
3598         if (! chip->amplifier)
3599                 nval |= 0x2000;
3600         else
3601                 nval &= ~0x2000;
3602         if (nval != control)
3603                 outw(nval, chip->acpi_port + 0x10);
3604 }
3605 
3606         
3607 /*
3608  * detect intel piix4
3609  */
3610 static void clkrun_init(struct snd_cs46xx *chip)
3611 {
3612         struct pci_dev *pdev;
3613         u8 pp;
3614 
3615         chip->acpi_port = 0;
3616         
3617         pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
3618                 PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3619         if (pdev == NULL)
3620                 return;         /* Not a thinkpad thats for sure */
3621 
3622         /* Find the control port */             
3623         pci_read_config_byte(pdev, 0x41, &pp);
3624         chip->acpi_port = pp << 8;
3625         pci_dev_put(pdev);
3626 }
3627 
3628 
3629 /*
3630  * Card subid table
3631  */
3632  
3633 struct cs_card_type
3634 {
3635         u16 vendor;
3636         u16 id;
3637         char *name;
3638         void (*init)(struct snd_cs46xx *);
3639         void (*amp)(struct snd_cs46xx *, int);
3640         void (*active)(struct snd_cs46xx *, int);
3641         void (*mixer_init)(struct snd_cs46xx *);
3642 };
3643 
3644 static struct cs_card_type cards[] = {
3645         {
3646                 .vendor = 0x1489,
3647                 .id = 0x7001,
3648                 .name = "Genius Soundmaker 128 value",
3649                 /* nothing special */
3650         },
3651         {
3652                 .vendor = 0x5053,
3653                 .id = 0x3357,
3654                 .name = "Voyetra",
3655                 .amp = amp_voyetra,
3656                 .mixer_init = voyetra_mixer_init,
3657         },
3658         {
3659                 .vendor = 0x1071,
3660                 .id = 0x6003,
3661                 .name = "Mitac MI6020/21",
3662                 .amp = amp_voyetra,
3663         },
3664         /* Hercules Game Theatre XP */
3665         {
3666                 .vendor = 0x14af, /* Guillemot Corporation */
3667                 .id = 0x0050,
3668                 .name = "Hercules Game Theatre XP",
3669                 .amp = amp_hercules,
3670                 .mixer_init = hercules_mixer_init,
3671         },
3672         {
3673                 .vendor = 0x1681,
3674                 .id = 0x0050,
3675                 .name = "Hercules Game Theatre XP",
3676                 .amp = amp_hercules,
3677                 .mixer_init = hercules_mixer_init,
3678         },
3679         {
3680                 .vendor = 0x1681,
3681                 .id = 0x0051,
3682                 .name = "Hercules Game Theatre XP",
3683                 .amp = amp_hercules,
3684                 .mixer_init = hercules_mixer_init,
3685 
3686         },
3687         {
3688                 .vendor = 0x1681,
3689                 .id = 0x0052,
3690                 .name = "Hercules Game Theatre XP",
3691                 .amp = amp_hercules,
3692                 .mixer_init = hercules_mixer_init,
3693         },
3694         {
3695                 .vendor = 0x1681,
3696                 .id = 0x0053,
3697                 .name = "Hercules Game Theatre XP",
3698                 .amp = amp_hercules,
3699                 .mixer_init = hercules_mixer_init,
3700         },
3701         {
3702                 .vendor = 0x1681,
3703                 .id = 0x0054,
3704                 .name = "Hercules Game Theatre XP",
3705                 .amp = amp_hercules,
3706                 .mixer_init = hercules_mixer_init,
3707         },
3708         /* Herculess Fortissimo */
3709         {
3710                 .vendor = 0x1681,
3711                 .id = 0xa010,
3712                 .name = "Hercules Gamesurround Fortissimo II",
3713         },
3714         {
3715                 .vendor = 0x1681,
3716                 .id = 0xa011,
3717                 .name = "Hercules Gamesurround Fortissimo III 7.1",
3718         },
3719         /* Teratec */
3720         {
3721                 .vendor = 0x153b,
3722                 .id = 0x112e,
3723                 .name = "Terratec DMX XFire 1024",
3724         },
3725         {
3726                 .vendor = 0x153b,
3727                 .id = 0x1136,
3728                 .name = "Terratec SiXPack 5.1",
3729         },
3730         /* Not sure if the 570 needs the clkrun hack */
3731         {
3732                 .vendor = PCI_VENDOR_ID_IBM,
3733                 .id = 0x0132,
3734                 .name = "Thinkpad 570",
3735                 .init = clkrun_init,
3736                 .active = clkrun_hack,
3737         },
3738         {
3739                 .vendor = PCI_VENDOR_ID_IBM,
3740                 .id = 0x0153,
3741                 .name = "Thinkpad 600X/A20/T20",
3742                 .init = clkrun_init,
3743                 .active = clkrun_hack,
3744         },
3745         {
3746                 .vendor = PCI_VENDOR_ID_IBM,
3747                 .id = 0x1010,
3748                 .name = "Thinkpad 600E (unsupported)",
3749         },
3750         {} /* terminator */
3751 };
3752 
3753 
3754 /*
3755  * APM support
3756  */
3757 #ifdef CONFIG_PM_SLEEP
3758 static unsigned int saved_regs[] = {
3759         BA0_ACOSV,
3760         /*BA0_ASER_FADDR,*/
3761         BA0_ASER_MASTER,
3762         BA1_PVOL,
3763         BA1_CVOL,
3764 };
3765 
3766 static int snd_cs46xx_suspend(struct device *dev)
3767 {
3768         struct snd_card *card = dev_get_drvdata(dev);
3769         struct snd_cs46xx *chip = card->private_data;
3770         int i, amp_saved;
3771 
3772         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
3773         chip->in_suspend = 1;
3774         // chip->ac97_powerdown = snd_cs46xx_codec_read(chip, AC97_POWER_CONTROL);
3775         // chip->ac97_general_purpose = snd_cs46xx_codec_read(chip, BA0_AC97_GENERAL_PURPOSE);
3776 
3777         snd_ac97_suspend(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3778         snd_ac97_suspend(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3779 
3780         /* save some registers */
3781         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
3782                 chip->saved_regs[i] = snd_cs46xx_peekBA0(chip, saved_regs[i]);
3783 
3784         amp_saved = chip->amplifier;
3785         /* turn off amp */
3786         chip->amplifier_ctrl(chip, -chip->amplifier);
3787         snd_cs46xx_hw_stop(chip);
3788         /* disable CLKRUN */
3789         chip->active_ctrl(chip, -chip->amplifier);
3790         chip->amplifier = amp_saved; /* restore the status */
3791         return 0;
3792 }
3793 
3794 static int snd_cs46xx_resume(struct device *dev)
3795 {
3796         struct snd_card *card = dev_get_drvdata(dev);
3797         struct snd_cs46xx *chip = card->private_data;
3798         int amp_saved;
3799 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3800         int i;
3801 #endif
3802         unsigned int tmp;
3803 
3804         amp_saved = chip->amplifier;
3805         chip->amplifier = 0;
3806         chip->active_ctrl(chip, 1); /* force to on */
3807 
3808         snd_cs46xx_chip_init(chip);
3809 
3810         snd_cs46xx_reset(chip);
3811 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3812         cs46xx_dsp_resume(chip);
3813         /* restore some registers */
3814         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
3815                 snd_cs46xx_pokeBA0(chip, saved_regs[i], chip->saved_regs[i]);
3816 #else
3817         snd_cs46xx_download_image(chip);
3818 #endif
3819 
3820 #if 0
3821         snd_cs46xx_codec_write(chip, BA0_AC97_GENERAL_PURPOSE, 
3822                                chip->ac97_general_purpose);
3823         snd_cs46xx_codec_write(chip, AC97_POWER_CONTROL, 
3824                                chip->ac97_powerdown);
3825         mdelay(10);
3826         snd_cs46xx_codec_write(chip, BA0_AC97_POWERDOWN,
3827                                chip->ac97_powerdown);
3828         mdelay(5);
3829 #endif
3830 
3831         snd_ac97_resume(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
3832         snd_ac97_resume(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
3833 
3834         /*
3835          *  Stop capture DMA.
3836          */
3837         tmp = snd_cs46xx_peek(chip, BA1_CCTL);
3838         chip->capt.ctl = tmp & 0x0000ffff;
3839         snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
3840 
3841         mdelay(5);
3842 
3843         /* reset playback/capture */
3844         snd_cs46xx_set_play_sample_rate(chip, 8000);
3845         snd_cs46xx_set_capture_sample_rate(chip, 8000);
3846         snd_cs46xx_proc_start(chip);
3847 
3848         cs46xx_enable_stream_irqs(chip);
3849 
3850         if (amp_saved)
3851                 chip->amplifier_ctrl(chip, 1); /* turn amp on */
3852         else
3853                 chip->active_ctrl(chip, -1); /* disable CLKRUN */
3854         chip->amplifier = amp_saved;
3855         chip->in_suspend = 0;
3856         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
3857         return 0;
3858 }
3859 
3860 SIMPLE_DEV_PM_OPS(snd_cs46xx_pm, snd_cs46xx_suspend, snd_cs46xx_resume);
3861 #endif /* CONFIG_PM_SLEEP */
3862 
3863 
3864 /*
3865  */
3866 
3867 int snd_cs46xx_create(struct snd_card *card,
3868                       struct pci_dev *pci,
3869                       int external_amp, int thinkpad,
3870                       struct snd_cs46xx **rchip)
3871 {
3872         struct snd_cs46xx *chip;
3873         int err, idx;
3874         struct snd_cs46xx_region *region;
3875         struct cs_card_type *cp;
3876         u16 ss_card, ss_vendor;
3877         static struct snd_device_ops ops = {
3878                 .dev_free =     snd_cs46xx_dev_free,
3879         };
3880         
3881         *rchip = NULL;
3882 
3883         /* enable PCI device */
3884         if ((err = pci_enable_device(pci)) < 0)
3885                 return err;
3886 
3887         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
3888         if (chip == NULL) {
3889                 pci_disable_device(pci);
3890                 return -ENOMEM;
3891         }
3892         spin_lock_init(&chip->reg_lock);
3893 #ifdef CONFIG_SND_CS46XX_NEW_DSP
3894         mutex_init(&chip->spos_mutex);
3895 #endif
3896         chip->card = card;
3897         chip->pci = pci;
3898         chip->irq = -1;
3899         chip->ba0_addr = pci_resource_start(pci, 0);
3900         chip->ba1_addr = pci_resource_start(pci, 1);
3901         if (chip->ba0_addr == 0 || chip->ba0_addr == (unsigned long)~0 ||
3902             chip->ba1_addr == 0 || chip->ba1_addr == (unsigned long)~0) {
3903                 dev_err(chip->card->dev,
3904                         "wrong address(es) - ba0 = 0x%lx, ba1 = 0x%lx\n",
3905                            chip->ba0_addr, chip->ba1_addr);
3906                 snd_cs46xx_free(chip);
3907                 return -ENOMEM;
3908         }
3909 
3910         region = &chip->region.name.ba0;
3911         strcpy(region->name, "CS46xx_BA0");
3912         region->base = chip->ba0_addr;
3913         region->size = CS46XX_BA0_SIZE;
3914 
3915         region = &chip->region.name.data0;
3916         strcpy(region->name, "CS46xx_BA1_data0");
3917         region->base = chip->ba1_addr + BA1_SP_DMEM0;
3918         region->size = CS46XX_BA1_DATA0_SIZE;
3919 
3920         region = &chip->region.name.data1;
3921         strcpy(region->name, "CS46xx_BA1_data1");
3922         region->base = chip->ba1_addr + BA1_SP_DMEM1;
3923         region->size = CS46XX_BA1_DATA1_SIZE;
3924 
3925         region = &chip->region.name.pmem;
3926         strcpy(region->name, "CS46xx_BA1_pmem");
3927         region->base = chip->ba1_addr + BA1_SP_PMEM;
3928         region->size = CS46XX_BA1_PRG_SIZE;
3929 
3930         region = &chip->region.name.reg;
3931         strcpy(region->name, "CS46xx_BA1_reg");
3932         region->base = chip->ba1_addr + BA1_SP_REG;
3933         region->size = CS46XX_BA1_REG_SIZE;
3934 
3935         /* set up amp and clkrun hack */
3936         pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &ss_vendor);
3937         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &ss_card);
3938 
3939         for (cp = &cards[0]; cp->name; cp++) {
3940                 if (cp->vendor == ss_vendor && cp->id == ss_card) {
3941                         dev_dbg(chip->card->dev, "hack for %s enabled\n",
3942                                 cp->name);
3943 
3944                         chip->amplifier_ctrl = cp->amp;
3945                         chip->active_ctrl = cp->active;
3946                         chip->mixer_init = cp->mixer_init;
3947 
3948                         if (cp->init)
3949                                 cp->init(chip);
3950                         break;
3951                 }
3952         }
3953 
3954         if (external_amp) {
3955                 dev_info(chip->card->dev,
3956                          "Crystal EAPD support forced on.\n");
3957                 chip->amplifier_ctrl = amp_voyetra;
3958         }
3959 
3960         if (thinkpad) {
3961                 dev_info(chip->card->dev,
3962                          "Activating CLKRUN hack for Thinkpad.\n");
3963                 chip->active_ctrl = clkrun_hack;
3964                 clkrun_init(chip);
3965         }
3966         
3967         if (chip->amplifier_ctrl == NULL)
3968                 chip->amplifier_ctrl = amp_none;
3969         if (chip->active_ctrl == NULL)
3970                 chip->active_ctrl = amp_none;
3971 
3972         chip->active_ctrl(chip, 1); /* enable CLKRUN */
3973 
3974         pci_set_master(pci);
3975 
3976         for (idx = 0; idx < 5; idx++) {
3977                 region = &chip->region.idx[idx];
3978                 if ((region->resource = request_mem_region(region->base, region->size,
3979                                                            region->name)) == NULL) {
3980                         dev_err(chip->card->dev,
3981                                 "unable to request memory region 0x%lx-0x%lx\n",
3982                                    region->base, region->base + region->size - 1);
3983                         snd_cs46xx_free(chip);
3984                         return -EBUSY;
3985                 }
3986                 region->remap_addr = ioremap_nocache(region->base, region->size);
3987                 if (region->remap_addr == NULL) {
3988                         dev_err(chip->card->dev,
3989                                 "%s ioremap problem\n", region->name);
3990                         snd_cs46xx_free(chip);
3991                         return -ENOMEM;
3992                 }
3993         }
3994 
3995         if (request_irq(pci->irq, snd_cs46xx_interrupt, IRQF_SHARED,
3996                         KBUILD_MODNAME, chip)) {
3997                 dev_err(chip->card->dev, "unable to grab IRQ %d\n", pci->irq);
3998                 snd_cs46xx_free(chip);
3999                 return -EBUSY;
4000         }
4001         chip->irq = pci->irq;
4002 
4003 #ifdef CONFIG_SND_CS46XX_NEW_DSP
4004         chip->dsp_spos_instance = cs46xx_dsp_spos_create(chip);
4005         if (chip->dsp_spos_instance == NULL) {
4006                 snd_cs46xx_free(chip);
4007                 return -ENOMEM;
4008         }
4009 #endif
4010 
4011         err = snd_cs46xx_chip_init(chip);
4012         if (err < 0) {
4013                 snd_cs46xx_free(chip);
4014                 return err;
4015         }
4016 
4017         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
4018                 snd_cs46xx_free(chip);
4019                 return err;
4020         }
4021         
4022         snd_cs46xx_proc_init(card, chip);
4023 
4024 #ifdef CONFIG_PM_SLEEP
4025         chip->saved_regs = kmalloc_array(ARRAY_SIZE(saved_regs),
4026                                          sizeof(*chip->saved_regs),
4027                                          GFP_KERNEL);
4028         if (!chip->saved_regs) {
4029                 snd_cs46xx_free(chip);
4030                 return -ENOMEM;
4031         }
4032 #endif
4033 
4034         chip->active_ctrl(chip, -1); /* disable CLKRUN */
4035 
4036         *rchip = chip;
4037         return 0;
4038 }
4039 

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