aboutsummaryrefslogblamecommitdiffstats
path: root/sound/pci/maestro3.c
blob: 8a5ff1cb53624a7af375202fde52073d733d21cc (plain) (tree)
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776






































                                                                             
                              


                              
                           






                             
                          








                                                                          



                                                






































































































































































































































































































































































































































































































































































































































































































































                                                                                                                        





                     
               

                   
                                            
























                                          
                              





                                      
                              
 
                            

                            












                                      




                                                                                

                  
                                  


                           
                                  

                            
                             
 

                                           
                                       
 


                         


                                                  




          
                                            




















                                                                                   












                                                                      

  

                                                                
                           





















































                                                                                
                            
























                                                                               
  




                     
                                                                                 



                                        
                                                                    



                                       
                                                                                



                                        
                                                                   







                                                                      
                                                                       





                                                                       
                                                                                   





                                                                       
                                                 

                                                                                        
                   


                                                                                          
                                                     












                                                                                         
                                                                              






                                                        
                                                                                    


















                                                                   
                                                       

















                                                                        
                                                       






















                                                                         

                                                                  














                                                                          
                                                              








                                                                          

                                                                 






















                                                                  
                                                           
 

                                                           
































                                                              
                                                                                        

                                                                     
                                                        
















































































                                                                        

                                                                    



































                                                                               
                               



























                                                                              

                                                            



































                                                                                              
                              



























                                                                    
                                                                                           
























                                                                         

                                                                    
 
                                                            






                                                                                            
                                                            




                                                       
                                                                  
 
                         


                                                     
                                             





                                          
                                                  
 


                                                           





























                                                       
                                                                                         























                                                                                   
                                                  
 
                                                           
                         
                                                       










                                                   
                                                                    
 
                                                      





                           









                                                     

                         
 
                                                 





                                                           





                                             

                                                               
                                                             


























































                                                                                 
                                                          
 
                                     






                                                     



                                                     












                                                                                              
                                                                                













                                                                                
                                                     







                           
                                                



















                                                                                      
                                               
























                                                                                      
                                                                          

              
                         




























                                                        
                                                                           
 
                                                       


















                                                                               
                                                    
 

                                                           











                                                          
                                                     
 
                                                           





                                           
                                                   
 

                                                           











                                                          
                                                    
 
                                                           








                                           
                                                 









                                              
                                                










                                             
                                            
 
                            





























                                                                                             
                                                





                                                   
                            

                          
                                                      



                     
                                                           
 
                                                 
                            
                                     

                                   
                          
                                                   

                                                              
                                 
                                            
            
                                                        
     
                    


           
                                                                                
 
                                                 
                            


                                   
                                                   

                                                     
                                                        

















                                                                            
                                                      















                                                                 
                                                  




















                                                          
                                           











                                                                    
                                                                           






                                                                                   
                                                                           
















                                                                                          
                   
                                        
                   


      
                                                      
 


                                      
                
                                              













                                                                       
                                                                

                                                








                                                               



                 
                                             
 



                  
                                        





















































































                                                                                                    
                                         



































                                                                                                    








                                             
                                                  













                                                                        

                                                   





                          
                                                 



                                               
                                                 

                       
                  
















                                                                                         

                                                                  
                                                               
                                                                        







                                                              

                                                                  
                                                               
                                                      




















































                                                                     
                                                                                              











                                                                     
                                                          


                                                  
                                            


                                                    
                                                                                     























                                                              
                                                  






















                                                                
                                     

                                           
                                        









                                                                 
                                













                                                                                                 
                                                              
                                                                      
                             

                                                                  
























                                                                   
                                                                                  

                                                       





                                               



                 
                                       

                                        
                           

                                            
                                                      
                                             

                                      







                                                             
                                           
 
                         













                                                                                   
                                                                         







                                           
                                          




                                               


                                                   
      
 









                                      
                                                              
 

                                                     




                                      
                                                            


                                       
                                                          











                                                                           

                                
                                                               


                 
                                         
 

                                                     




                                      
                                         
                               





                                                                      
                            




























                                                                           
                                                         







                      
                                                     
 
                                                  



                                 
                                                         

                             
                                       
 
                            
                   
                                          
                                            








                                                                    

                                                                   
                                                                                               



                                        
                                                  





                                        

                                         












                                            


                                              






















                                                                          

                                       

                                                                               




                                        
 


                                               


                                                                         

                                  

                                                                
      
 


                                                 


                                                                          

                                  

                                                                 
      
 













                                                                 

                                   

                                                                                    
                                                                
                                              
                                                                         








                                                                                                         










                                                                               
                                                        






















                                                                     

                              





































                                                                       
                                  










                                                             
                                          
                                                                  

                                                                  

                                                              
                                                                    

















                                                        



                              



                                         
                                            








                                          
/*
 * Driver for ESS Maestro3/Allegro (ES1988) soundcards.
 * Copyright (c) 2000 by Zach Brown <zab@zabbo.net>
 *                       Takashi Iwai <tiwai@suse.de>
 *
 * Most of the hardware init stuffs are based on maestro3 driver for
 * OSS/Free by Zach Brown.  Many thanks to Zach!
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 *
 * ChangeLog:
 * Aug. 27, 2001
 *     - Fixed deadlock on capture
 *     - Added Canyon3D-2 support by Rob Riggs <rob@pangalactic.org>
 *
 */
 
#define CARD_NAME "ESS Maestro3/Allegro/Canyon3D-2"
#define DRIVER_NAME "Maestro3"

#include <sound/driver.h>
#include <asm/io.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/moduleparam.h>
#include <linux/firmware.h>
#include <sound/core.h>
#include <sound/info.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/mpu401.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <asm/byteorder.h>

MODULE_AUTHOR("Zach Brown <zab@zabbo.net>, Takashi Iwai <tiwai@suse.de>");
MODULE_DESCRIPTION("ESS Maestro3 PCI");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{ESS,Maestro3 PCI},"
		"{ESS,ES1988},"
		"{ESS,Allegro PCI},"
		"{ESS,Allegro-1 PCI},"
	        "{ESS,Canyon3D-2/LE PCI}}");
#ifndef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
MODULE_FIRMWARE("ess/maestro3_assp_kernel.fw");
MODULE_FIRMWARE("ess/maestro3_assp_minisrc.fw");
#endif

static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* all enabled */
static int external_amp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
static int amp_gpio[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable this soundcard.");
module_param_array(external_amp, bool, NULL, 0444);
MODULE_PARM_DESC(external_amp, "Enable external amp for " CARD_NAME " soundcard.");
module_param_array(amp_gpio, int, NULL, 0444);
MODULE_PARM_DESC(amp_gpio, "GPIO pin number for external amp. (default = -1)");

#define MAX_PLAYBACKS	2
#define MAX_CAPTURES	1
#define NR_DSPS		(MAX_PLAYBACKS + MAX_CAPTURES)


/*
 * maestro3 registers
 */

/* Allegro PCI configuration registers */
#define PCI_LEGACY_AUDIO_CTRL   0x40
#define SOUND_BLASTER_ENABLE    0x00000001
#define FM_SYNTHESIS_ENABLE     0x00000002
#define GAME_PORT_ENABLE        0x00000004
#define MPU401_IO_ENABLE        0x00000008
#define MPU401_IRQ_ENABLE       0x00000010
#define ALIAS_10BIT_IO          0x00000020
#define SB_DMA_MASK             0x000000C0
#define SB_DMA_0                0x00000040
#define SB_DMA_1                0x00000040
#define SB_DMA_R                0x00000080
#define SB_DMA_3                0x000000C0
#define SB_IRQ_MASK             0x00000700
#define SB_IRQ_5                0x00000000
#define SB_IRQ_7                0x00000100
#define SB_IRQ_9                0x00000200
#define SB_IRQ_10               0x00000300
#define MIDI_IRQ_MASK           0x00003800
#define SERIAL_IRQ_ENABLE       0x00004000
#define DISABLE_LEGACY          0x00008000

#define PCI_ALLEGRO_CONFIG      0x50
#define SB_ADDR_240             0x00000004
#define MPU_ADDR_MASK           0x00000018
#define MPU_ADDR_330            0x00000000
#define MPU_ADDR_300            0x00000008
#define MPU_ADDR_320            0x00000010
#define MPU_ADDR_340            0x00000018
#define USE_PCI_TIMING          0x00000040
#define POSTED_WRITE_ENABLE     0x00000080
#define DMA_POLICY_MASK         0x00000700
#define DMA_DDMA                0x00000000
#define DMA_TDMA                0x00000100
#define DMA_PCPCI               0x00000200
#define DMA_WBDMA16             0x00000400
#define DMA_WBDMA4              0x00000500
#define DMA_WBDMA2              0x00000600
#define DMA_WBDMA1              0x00000700
#define DMA_SAFE_GUARD          0x00000800
#define HI_PERF_GP_ENABLE       0x00001000
#define PIC_SNOOP_MODE_0        0x00002000
#define PIC_SNOOP_MODE_1        0x00004000
#define SOUNDBLASTER_IRQ_MASK   0x00008000
#define RING_IN_ENABLE          0x00010000
#define SPDIF_TEST_MODE         0x00020000
#define CLK_MULT_MODE_SELECT_2  0x00040000
#define EEPROM_WRITE_ENABLE     0x00080000
#define CODEC_DIR_IN            0x00100000
#define HV_BUTTON_FROM_GD       0x00200000
#define REDUCED_DEBOUNCE        0x00400000
#define HV_CTRL_ENABLE          0x00800000
#define SPDIF_ENABLE            0x01000000
#define CLK_DIV_SELECT          0x06000000
#define CLK_DIV_BY_48           0x00000000
#define CLK_DIV_BY_49           0x02000000
#define CLK_DIV_BY_50           0x04000000
#define CLK_DIV_RESERVED        0x06000000
#define PM_CTRL_ENABLE          0x08000000
#define CLK_MULT_MODE_SELECT    0x30000000
#define CLK_MULT_MODE_SHIFT     28
#define CLK_MULT_MODE_0         0x00000000
#define CLK_MULT_MODE_1         0x10000000
#define CLK_MULT_MODE_2         0x20000000
#define CLK_MULT_MODE_3         0x30000000
#define INT_CLK_SELECT          0x40000000
#define INT_CLK_MULT_RESET      0x80000000

/* M3 */
#define INT_CLK_SRC_NOT_PCI     0x00100000
#define INT_CLK_MULT_ENABLE     0x80000000

#define PCI_ACPI_CONTROL        0x54
#define PCI_ACPI_D0             0x00000000
#define PCI_ACPI_D1             0xB4F70000
#define PCI_ACPI_D2             0xB4F7B4F7

#define PCI_USER_CONFIG         0x58
#define EXT_PCI_MASTER_ENABLE   0x00000001
#define SPDIF_OUT_SELECT        0x00000002
#define TEST_PIN_DIR_CTRL       0x00000004
#define AC97_CODEC_TEST         0x00000020
#define TRI_STATE_BUFFER        0x00000080
#define IN_CLK_12MHZ_SELECT     0x00000100
#define MULTI_FUNC_DISABLE      0x00000200
#define EXT_MASTER_PAIR_SEL     0x00000400
#define PCI_MASTER_SUPPORT      0x00000800
#define STOP_CLOCK_ENABLE       0x00001000
#define EAPD_DRIVE_ENABLE       0x00002000
#define REQ_TRI_STATE_ENABLE    0x00004000
#define REQ_LOW_ENABLE          0x00008000
#define MIDI_1_ENABLE           0x00010000
#define MIDI_2_ENABLE           0x00020000
#define SB_AUDIO_SYNC           0x00040000
#define HV_CTRL_TEST            0x00100000
#define SOUNDBLASTER_TEST       0x00400000

#define PCI_USER_CONFIG_C       0x5C

#define PCI_DDMA_CTRL           0x60
#define DDMA_ENABLE             0x00000001


/* Allegro registers */
#define HOST_INT_CTRL           0x18
#define SB_INT_ENABLE           0x0001
#define MPU401_INT_ENABLE       0x0002
#define ASSP_INT_ENABLE         0x0010
#define RING_INT_ENABLE         0x0020
#define HV_INT_ENABLE           0x0040
#define CLKRUN_GEN_ENABLE       0x0100
#define HV_CTRL_TO_PME          0x0400
#define SOFTWARE_RESET_ENABLE   0x8000

/*
 * should be using the above defines, probably.
 */
#define REGB_ENABLE_RESET               0x01
#define REGB_STOP_CLOCK                 0x10

#define HOST_INT_STATUS         0x1A
#define SB_INT_PENDING          0x01
#define MPU401_INT_PENDING      0x02
#define ASSP_INT_PENDING        0x10
#define RING_INT_PENDING        0x20
#define HV_INT_PENDING          0x40

#define HARDWARE_VOL_CTRL       0x1B
#define SHADOW_MIX_REG_VOICE    0x1C
#define HW_VOL_COUNTER_VOICE    0x1D
#define SHADOW_MIX_REG_MASTER   0x1E
#define HW_VOL_COUNTER_MASTER   0x1F

#define CODEC_COMMAND           0x30
#define CODEC_READ_B            0x80

#define CODEC_STATUS            0x30
#define CODEC_BUSY_B            0x01

#define CODEC_DATA              0x32

#define RING_BUS_CTRL_A         0x36
#define RAC_PME_ENABLE          0x0100
#define RAC_SDFS_ENABLE         0x0200
#define LAC_PME_ENABLE          0x0400
#define LAC_SDFS_ENABLE         0x0800
#define SERIAL_AC_LINK_ENABLE   0x1000
#define IO_SRAM_ENABLE          0x2000
#define IIS_INPUT_ENABLE        0x8000

#define RING_BUS_CTRL_B         0x38
#define SECOND_CODEC_ID_MASK    0x0003
#define SPDIF_FUNC_ENABLE       0x0010
#define SECOND_AC_ENABLE        0x0020
#define SB_MODULE_INTF_ENABLE   0x0040
#define SSPE_ENABLE             0x0040
#define M3I_DOCK_ENABLE         0x0080

#define SDO_OUT_DEST_CTRL       0x3A
#define COMMAND_ADDR_OUT        0x0003
#define PCM_LR_OUT_LOCAL        0x0000
#define PCM_LR_OUT_REMOTE       0x0004
#define PCM_LR_OUT_MUTE         0x0008
#define PCM_LR_OUT_BOTH         0x000C
#define LINE1_DAC_OUT_LOCAL     0x0000
#define LINE1_DAC_OUT_REMOTE    0x0010
#define LINE1_DAC_OUT_MUTE      0x0020
#define LINE1_DAC_OUT_BOTH      0x0030
#define PCM_CLS_OUT_LOCAL       0x0000
#define PCM_CLS_OUT_REMOTE      0x0040
#define PCM_CLS_OUT_MUTE        0x0080
#define PCM_CLS_OUT_BOTH        0x00C0
#define PCM_RLF_OUT_LOCAL       0x0000
#define PCM_RLF_OUT_REMOTE      0x0100
#define PCM_RLF_OUT_MUTE        0x0200
#define PCM_RLF_OUT_BOTH        0x0300
#define LINE2_DAC_OUT_LOCAL     0x0000
#define LINE2_DAC_OUT_REMOTE    0x0400
#define LINE2_DAC_OUT_MUTE      0x0800
#define LINE2_DAC_OUT_BOTH      0x0C00
#define HANDSET_OUT_LOCAL       0x0000
#define HANDSET_OUT_REMOTE      0x1000
#define HANDSET_OUT_MUTE        0x2000
#define HANDSET_OUT_BOTH        0x3000
#define IO_CTRL_OUT_LOCAL       0x0000
#define IO_CTRL_OUT_REMOTE      0x4000
#define IO_CTRL_OUT_MUTE        0x8000
#define IO_CTRL_OUT_BOTH        0xC000

#define SDO_IN_DEST_CTRL        0x3C
#define STATUS_ADDR_IN          0x0003
#define PCM_LR_IN_LOCAL         0x0000
#define PCM_LR_IN_REMOTE        0x0004
#define PCM_LR_RESERVED         0x0008
#define PCM_LR_IN_BOTH          0x000C
#define LINE1_ADC_IN_LOCAL      0x0000
#define LINE1_ADC_IN_REMOTE     0x0010
#define LINE1_ADC_IN_MUTE       0x0020
#define MIC_ADC_IN_LOCAL        0x0000
#define MIC_ADC_IN_REMOTE       0x0040
#define MIC_ADC_IN_MUTE         0x0080
#define LINE2_DAC_IN_LOCAL      0x0000
#define LINE2_DAC_IN_REMOTE     0x0400
#define LINE2_DAC_IN_MUTE       0x0800
#define HANDSET_IN_LOCAL        0x0000
#define HANDSET_IN_REMOTE       0x1000
#define HANDSET_IN_MUTE         0x2000
#define IO_STATUS_IN_LOCAL      0x0000
#define IO_STATUS_IN_REMOTE     0x4000

#define SPDIF_IN_CTRL           0x3E
#define SPDIF_IN_ENABLE         0x0001

#define GPIO_DATA               0x60
#define GPIO_DATA_MASK          0x0FFF
#define GPIO_HV_STATUS          0x3000
#define GPIO_PME_STATUS         0x4000

#define GPIO_MASK               0x64
#define GPIO_DIRECTION          0x68
#define GPO_PRIMARY_AC97        0x0001
#define GPI_LINEOUT_SENSE       0x0004
#define GPO_SECONDARY_AC97      0x0008
#define GPI_VOL_DOWN            0x0010
#define GPI_VOL_UP              0x0020
#define GPI_IIS_CLK             0x0040
#define GPI_IIS_LRCLK           0x0080
#define GPI_IIS_DATA            0x0100
#define GPI_DOCKING_STATUS      0x0100
#define GPI_HEADPHONE_SENSE     0x0200
#define GPO_EXT_AMP_SHUTDOWN    0x1000

#define GPO_EXT_AMP_M3		1	/* default m3 amp */
#define GPO_EXT_AMP_ALLEGRO	8	/* default allegro amp */

/* M3 */
#define GPO_M3_EXT_AMP_SHUTDN   0x0002

#define ASSP_INDEX_PORT         0x80
#define ASSP_MEMORY_PORT        0x82
#define ASSP_DATA_PORT          0x84

#define MPU401_DATA_PORT        0x98
#define MPU401_STATUS_PORT      0x99

#define CLK_MULT_DATA_PORT      0x9C

#define ASSP_CONTROL_A          0xA2
#define ASSP_0_WS_ENABLE        0x01
#define ASSP_CTRL_A_RESERVED1   0x02
#define ASSP_CTRL_A_RESERVED2   0x04
#define ASSP_CLK_49MHZ_SELECT   0x08
#define FAST_PLU_ENABLE         0x10
#define ASSP_CTRL_A_RESERVED3   0x20
#define DSP_CLK_36MHZ_SELECT    0x40

#define ASSP_CONTROL_B          0xA4
#define RESET_ASSP              0x00
#define RUN_ASSP                0x01
#define ENABLE_ASSP_CLOCK       0x00
#define STOP_ASSP_CLOCK         0x10
#define RESET_TOGGLE            0x40

#define ASSP_CONTROL_C          0xA6
#define ASSP_HOST_INT_ENABLE    0x01
#define FM_ADDR_REMAP_DISABLE   0x02
#define HOST_WRITE_PORT_ENABLE  0x08

#define ASSP_HOST_INT_STATUS    0xAC
#define DSP2HOST_REQ_PIORECORD  0x01
#define DSP2HOST_REQ_I2SRATE    0x02
#define DSP2HOST_REQ_TIMER      0x04

/* AC97 registers */
/* XXX fix this crap up */
/*#define AC97_RESET              0x00*/

#define AC97_VOL_MUTE_B         0x8000
#define AC97_VOL_M              0x1F
#define AC97_LEFT_VOL_S         8

#define AC97_MASTER_VOL         0x02
#define AC97_LINE_LEVEL_VOL     0x04
#define AC97_MASTER_MONO_VOL    0x06
#define AC97_PC_BEEP_VOL        0x0A
#define AC97_PC_BEEP_VOL_M      0x0F
#define AC97_SROUND_MASTER_VOL  0x38
#define AC97_PC_BEEP_VOL_S      1

/*#define AC97_PHONE_VOL          0x0C
#define AC97_MIC_VOL            0x0E*/
#define AC97_MIC_20DB_ENABLE    0x40

/*#define AC97_LINEIN_VOL         0x10
#define AC97_CD_VOL             0x12
#define AC97_VIDEO_VOL          0x14
#define AC97_AUX_VOL            0x16*/
#define AC97_PCM_OUT_VOL        0x18
/*#define AC97_RECORD_SELECT      0x1A*/
#define AC97_RECORD_MIC         0x00
#define AC97_RECORD_CD          0x01
#define AC97_RECORD_VIDEO       0x02
#define AC97_RECORD_AUX         0x03
#define AC97_RECORD_MONO_MUX    0x02
#define AC97_RECORD_DIGITAL     0x03
#define AC97_RECORD_LINE        0x04
#define AC97_RECORD_STEREO      0x05
#define AC97_RECORD_MONO        0x06
#define AC97_RECORD_PHONE       0x07

/*#define AC97_RECORD_GAIN        0x1C*/
#define AC97_RECORD_VOL_M       0x0F

/*#define AC97_GENERAL_PURPOSE    0x20*/
#define AC97_POWER_DOWN_CTRL    0x26
#define AC97_ADC_READY          0x0001
#define AC97_DAC_READY          0x0002
#define AC97_ANALOG_READY       0x0004
#define AC97_VREF_ON            0x0008
#define AC97_PR0                0x0100
#define AC97_PR1                0x0200
#define AC97_PR2                0x0400
#define AC97_PR3                0x0800
#define AC97_PR4                0x1000

#define AC97_RESERVED1          0x28

#define AC97_VENDOR_TEST        0x5A

#define AC97_CLOCK_DELAY        0x5C
#define AC97_LINEOUT_MUX_SEL    0x0001
#define AC97_MONO_MUX_SEL       0x0002
#define AC97_CLOCK_DELAY_SEL    0x1F
#define AC97_DAC_CDS_SHIFT      6
#define AC97_ADC_CDS_SHIFT      11

#define AC97_MULTI_CHANNEL_SEL  0x74

/*#define AC97_VENDOR_ID1         0x7C
#define AC97_VENDOR_ID2         0x7E*/

/*
 * ASSP control regs
 */
#define DSP_PORT_TIMER_COUNT    0x06

#define DSP_PORT_MEMORY_INDEX   0x80

#define DSP_PORT_MEMORY_TYPE    0x82
#define MEMTYPE_INTERNAL_CODE   0x0002
#define MEMTYPE_INTERNAL_DATA   0x0003
#define MEMTYPE_MASK            0x0003

#define DSP_PORT_MEMORY_DATA    0x84

#define DSP_PORT_CONTROL_REG_A  0xA2
#define DSP_PORT_CONTROL_REG_B  0xA4
#define DSP_PORT_CONTROL_REG_C  0xA6

#define REV_A_CODE_MEMORY_BEGIN         0x0000
#define REV_A_CODE_MEMORY_END           0x0FFF
#define REV_A_CODE_MEMORY_UNIT_LENGTH   0x0040
#define REV_A_CODE_MEMORY_LENGTH        (REV_A_CODE_MEMORY_END - REV_A_CODE_MEMORY_BEGIN + 1)

#define REV_B_CODE_MEMORY_BEGIN         0x0000
#define REV_B_CODE_MEMORY_END           0x0BFF
#define REV_B_CODE_MEMORY_UNIT_LENGTH   0x0040
#define REV_B_CODE_MEMORY_LENGTH        (REV_B_CODE_MEMORY_END - REV_B_CODE_MEMORY_BEGIN + 1)

#define REV_A_DATA_MEMORY_BEGIN         0x1000
#define REV_A_DATA_MEMORY_END           0x2FFF
#define REV_A_DATA_MEMORY_UNIT_LENGTH   0x0080
#define REV_A_DATA_MEMORY_LENGTH        (REV_A_DATA_MEMORY_END - REV_A_DATA_MEMORY_BEGIN + 1)

#define REV_B_DATA_MEMORY_BEGIN         0x1000
#define REV_B_DATA_MEMORY_END           0x2BFF
#define REV_B_DATA_MEMORY_UNIT_LENGTH   0x0080
#define REV_B_DATA_MEMORY_LENGTH        (REV_B_DATA_MEMORY_END - REV_B_DATA_MEMORY_BEGIN + 1)


#define NUM_UNITS_KERNEL_CODE          16
#define NUM_UNITS_KERNEL_DATA           2

#define NUM_UNITS_KERNEL_CODE_WITH_HSP 16
#define NUM_UNITS_KERNEL_DATA_WITH_HSP  5

/*
 * Kernel data layout
 */

#define DP_SHIFT_COUNT                  7

#define KDATA_BASE_ADDR                 0x1000
#define KDATA_BASE_ADDR2                0x1080

#define KDATA_TASK0                     (KDATA_BASE_ADDR + 0x0000)
#define KDATA_TASK1                     (KDATA_BASE_ADDR + 0x0001)
#define KDATA_TASK2                     (KDATA_BASE_ADDR + 0x0002)
#define KDATA_TASK3                     (KDATA_BASE_ADDR + 0x0003)
#define KDATA_TASK4                     (KDATA_BASE_ADDR + 0x0004)
#define KDATA_TASK5                     (KDATA_BASE_ADDR + 0x0005)
#define KDATA_TASK6                     (KDATA_BASE_ADDR + 0x0006)
#define KDATA_TASK7                     (KDATA_BASE_ADDR + 0x0007)
#define KDATA_TASK_ENDMARK              (KDATA_BASE_ADDR + 0x0008)

#define KDATA_CURRENT_TASK              (KDATA_BASE_ADDR + 0x0009)
#define KDATA_TASK_SWITCH               (KDATA_BASE_ADDR + 0x000A)

#define KDATA_INSTANCE0_POS3D           (KDATA_BASE_ADDR + 0x000B)
#define KDATA_INSTANCE1_POS3D           (KDATA_BASE_ADDR + 0x000C)
#define KDATA_INSTANCE2_POS3D           (KDATA_BASE_ADDR + 0x000D)
#define KDATA_INSTANCE3_POS3D           (KDATA_BASE_ADDR + 0x000E)
#define KDATA_INSTANCE4_POS3D           (KDATA_BASE_ADDR + 0x000F)
#define KDATA_INSTANCE5_POS3D           (KDATA_BASE_ADDR + 0x0010)
#define KDATA_INSTANCE6_POS3D           (KDATA_BASE_ADDR + 0x0011)
#define KDATA_INSTANCE7_POS3D           (KDATA_BASE_ADDR + 0x0012)
#define KDATA_INSTANCE8_POS3D           (KDATA_BASE_ADDR + 0x0013)
#define KDATA_INSTANCE_POS3D_ENDMARK    (KDATA_BASE_ADDR + 0x0014)

#define KDATA_INSTANCE0_SPKVIRT         (KDATA_BASE_ADDR + 0x0015)
#define KDATA_INSTANCE_SPKVIRT_ENDMARK  (KDATA_BASE_ADDR + 0x0016)

#define KDATA_INSTANCE0_SPDIF           (KDATA_BASE_ADDR + 0x0017)
#define KDATA_INSTANCE_SPDIF_ENDMARK    (KDATA_BASE_ADDR + 0x0018)

#define KDATA_INSTANCE0_MODEM           (KDATA_BASE_ADDR + 0x0019)
#define KDATA_INSTANCE_MODEM_ENDMARK    (KDATA_BASE_ADDR + 0x001A)

#define KDATA_INSTANCE0_SRC             (KDATA_BASE_ADDR + 0x001B)
#define KDATA_INSTANCE1_SRC             (KDATA_BASE_ADDR + 0x001C)
#define KDATA_INSTANCE_SRC_ENDMARK      (KDATA_BASE_ADDR + 0x001D)

#define KDATA_INSTANCE0_MINISRC         (KDATA_BASE_ADDR + 0x001E)
#define KDATA_INSTANCE1_MINISRC         (KDATA_BASE_ADDR + 0x001F)
#define KDATA_INSTANCE2_MINISRC         (KDATA_BASE_ADDR + 0x0020)
#define KDATA_INSTANCE3_MINISRC         (KDATA_BASE_ADDR + 0x0021)
#define KDATA_INSTANCE_MINISRC_ENDMARK  (KDATA_BASE_ADDR + 0x0022)

#define KDATA_INSTANCE0_CPYTHRU         (KDATA_BASE_ADDR + 0x0023)
#define KDATA_INSTANCE1_CPYTHRU         (KDATA_BASE_ADDR + 0x0024)
#define KDATA_INSTANCE_CPYTHRU_ENDMARK  (KDATA_BASE_ADDR + 0x0025)

#define KDATA_CURRENT_DMA               (KDATA_BASE_ADDR + 0x0026)
#define KDATA_DMA_SWITCH                (KDATA_BASE_ADDR + 0x0027)
#define KDATA_DMA_ACTIVE                (KDATA_BASE_ADDR + 0x0028)

#define KDATA_DMA_XFER0                 (KDATA_BASE_ADDR + 0x0029)
#define KDATA_DMA_XFER1                 (KDATA_BASE_ADDR + 0x002A)
#define KDATA_DMA_XFER2                 (KDATA_BASE_ADDR + 0x002B)
#define KDATA_DMA_XFER3                 (KDATA_BASE_ADDR + 0x002C)
#define KDATA_DMA_XFER4                 (KDATA_BASE_ADDR + 0x002D)
#define KDATA_DMA_XFER5                 (KDATA_BASE_ADDR + 0x002E)
#define KDATA_DMA_XFER6                 (KDATA_BASE_ADDR + 0x002F)
#define KDATA_DMA_XFER7                 (KDATA_BASE_ADDR + 0x0030)
#define KDATA_DMA_XFER8                 (KDATA_BASE_ADDR + 0x0031)
#define KDATA_DMA_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0032)

#define KDATA_I2S_SAMPLE_COUNT          (KDATA_BASE_ADDR + 0x0033)
#define KDATA_I2S_INT_METER             (KDATA_BASE_ADDR + 0x0034)
#define KDATA_I2S_ACTIVE                (KDATA_BASE_ADDR + 0x0035)

#define KDATA_TIMER_COUNT_RELOAD        (KDATA_BASE_ADDR + 0x0036)
#define KDATA_TIMER_COUNT_CURRENT       (KDATA_BASE_ADDR + 0x0037)

#define KDATA_HALT_SYNCH_CLIENT         (KDATA_BASE_ADDR + 0x0038)
#define KDATA_HALT_SYNCH_DMA            (KDATA_BASE_ADDR + 0x0039)
#define KDATA_HALT_ACKNOWLEDGE          (KDATA_BASE_ADDR + 0x003A)

#define KDATA_ADC1_XFER0                (KDATA_BASE_ADDR + 0x003B)
#define KDATA_ADC1_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x003C)
#define KDATA_ADC1_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x003D)
#define KDATA_ADC1_RIGHT_VOLUME  		(KDATA_BASE_ADDR + 0x003E)
#define KDATA_ADC1_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x003F)
#define KDATA_ADC1_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0040)

#define KDATA_ADC2_XFER0                (KDATA_BASE_ADDR + 0x0041)
#define KDATA_ADC2_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x0042)
#define KDATA_ADC2_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0043)
#define KDATA_ADC2_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x0044)
#define KDATA_ADC2_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x0045)
#define KDATA_ADC2_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0046)

#define KDATA_CD_XFER0					(KDATA_BASE_ADDR + 0x0047)					
#define KDATA_CD_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x0048)
#define KDATA_CD_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0049)
#define KDATA_CD_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x004A)
#define KDATA_CD_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x004B)
#define KDATA_CD_RIGHT_SUR_VOL			(KDATA_BASE_ADDR + 0x004C)

#define KDATA_MIC_XFER0					(KDATA_BASE_ADDR + 0x004D)
#define KDATA_MIC_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x004E)
#define KDATA_MIC_VOLUME				(KDATA_BASE_ADDR + 0x004F)
#define KDATA_MIC_SUR_VOL				(KDATA_BASE_ADDR + 0x0050)

#define KDATA_I2S_XFER0                 (KDATA_BASE_ADDR + 0x0051)
#define KDATA_I2S_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0052)

#define KDATA_CHI_XFER0                 (KDATA_BASE_ADDR + 0x0053)
#define KDATA_CHI_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0054)

#define KDATA_SPDIF_XFER                (KDATA_BASE_ADDR + 0x0055)
#define KDATA_SPDIF_CURRENT_FRAME       (KDATA_BASE_ADDR + 0x0056)
#define KDATA_SPDIF_FRAME0              (KDATA_BASE_ADDR + 0x0057)
#define KDATA_SPDIF_FRAME1              (KDATA_BASE_ADDR + 0x0058)
#define KDATA_SPDIF_FRAME2              (KDATA_BASE_ADDR + 0x0059)

#define KDATA_SPDIF_REQUEST             (KDATA_BASE_ADDR + 0x005A)
#define KDATA_SPDIF_TEMP                (KDATA_BASE_ADDR + 0x005B)

#define KDATA_SPDIFIN_XFER0             (KDATA_BASE_ADDR + 0x005C)
#define KDATA_SPDIFIN_XFER_ENDMARK      (KDATA_BASE_ADDR + 0x005D)
#define KDATA_SPDIFIN_INT_METER         (KDATA_BASE_ADDR + 0x005E)

#define KDATA_DSP_RESET_COUNT           (KDATA_BASE_ADDR + 0x005F)
#define KDATA_DEBUG_OUTPUT              (KDATA_BASE_ADDR + 0x0060)

#define KDATA_KERNEL_ISR_LIST           (KDATA_BASE_ADDR + 0x0061)

#define KDATA_KERNEL_ISR_CBSR1          (KDATA_BASE_ADDR + 0x0062)
#define KDATA_KERNEL_ISR_CBER1          (KDATA_BASE_ADDR + 0x0063)
#define KDATA_KERNEL_ISR_CBCR           (KDATA_BASE_ADDR + 0x0064)
#define KDATA_KERNEL_ISR_AR0            (KDATA_BASE_ADDR + 0x0065)
#define KDATA_KERNEL_ISR_AR1            (KDATA_BASE_ADDR + 0x0066)
#define KDATA_KERNEL_ISR_AR2            (KDATA_BASE_ADDR + 0x0067)
#define KDATA_KERNEL_ISR_AR3            (KDATA_BASE_ADDR + 0x0068)
#define KDATA_KERNEL_ISR_AR4            (KDATA_BASE_ADDR + 0x0069)
#define KDATA_KERNEL_ISR_AR5            (KDATA_BASE_ADDR + 0x006A)
#define KDATA_KERNEL_ISR_BRCR           (KDATA_BASE_ADDR + 0x006B)
#define KDATA_KERNEL_ISR_PASR           (KDATA_BASE_ADDR + 0x006C)
#define KDATA_KERNEL_ISR_PAER           (KDATA_BASE_ADDR + 0x006D)

#define KDATA_CLIENT_SCRATCH0           (KDATA_BASE_ADDR + 0x006E)
#define KDATA_CLIENT_SCRATCH1           (KDATA_BASE_ADDR + 0x006F)
#define KDATA_KERNEL_SCRATCH            (KDATA_BASE_ADDR + 0x0070)
#define KDATA_KERNEL_ISR_SCRATCH        (KDATA_BASE_ADDR + 0x0071)

#define KDATA_OUEUE_LEFT                (KDATA_BASE_ADDR + 0x0072)
#define KDATA_QUEUE_RIGHT               (KDATA_BASE_ADDR + 0x0073)

#define KDATA_ADC1_REQUEST              (KDATA_BASE_ADDR + 0x0074)
#define KDATA_ADC2_REQUEST              (KDATA_BASE_ADDR + 0x0075)
#define KDATA_CD_REQUEST				(KDATA_BASE_ADDR + 0x0076)
#define KDATA_MIC_REQUEST				(KDATA_BASE_ADDR + 0x0077)

#define KDATA_ADC1_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0078)
#define KDATA_ADC2_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0079)
#define KDATA_CD_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007A)
#define KDATA_MIC_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007B)
#define KDATA_MIC_SYNC_COUNTER			(KDATA_BASE_ADDR + 0x007C)

/*
 * second 'segment' (?) reserved for mixer
 * buffers..
 */

#define KDATA_MIXER_WORD0               (KDATA_BASE_ADDR2 + 0x0000)
#define KDATA_MIXER_WORD1               (KDATA_BASE_ADDR2 + 0x0001)
#define KDATA_MIXER_WORD2               (KDATA_BASE_ADDR2 + 0x0002)
#define KDATA_MIXER_WORD3               (KDATA_BASE_ADDR2 + 0x0003)
#define KDATA_MIXER_WORD4               (KDATA_BASE_ADDR2 + 0x0004)
#define KDATA_MIXER_WORD5               (KDATA_BASE_ADDR2 + 0x0005)
#define KDATA_MIXER_WORD6               (KDATA_BASE_ADDR2 + 0x0006)
#define KDATA_MIXER_WORD7               (KDATA_BASE_ADDR2 + 0x0007)
#define KDATA_MIXER_WORD8               (KDATA_BASE_ADDR2 + 0x0008)
#define KDATA_MIXER_WORD9               (KDATA_BASE_ADDR2 + 0x0009)
#define KDATA_MIXER_WORDA               (KDATA_BASE_ADDR2 + 0x000A)
#define KDATA_MIXER_WORDB               (KDATA_BASE_ADDR2 + 0x000B)
#define KDATA_MIXER_WORDC               (KDATA_BASE_ADDR2 + 0x000C)
#define KDATA_MIXER_WORDD               (KDATA_BASE_ADDR2 + 0x000D)
#define KDATA_MIXER_WORDE               (KDATA_BASE_ADDR2 + 0x000E)
#define KDATA_MIXER_WORDF               (KDATA_BASE_ADDR2 + 0x000F)

#define KDATA_MIXER_XFER0               (KDATA_BASE_ADDR2 + 0x0010)
#define KDATA_MIXER_XFER1               (KDATA_BASE_ADDR2 + 0x0011)
#define KDATA_MIXER_XFER2               (KDATA_BASE_ADDR2 + 0x0012)
#define KDATA_MIXER_XFER3               (KDATA_BASE_ADDR2 + 0x0013)
#define KDATA_MIXER_XFER4               (KDATA_BASE_ADDR2 + 0x0014)
#define KDATA_MIXER_XFER5               (KDATA_BASE_ADDR2 + 0x0015)
#define KDATA_MIXER_XFER6               (KDATA_BASE_ADDR2 + 0x0016)
#define KDATA_MIXER_XFER7               (KDATA_BASE_ADDR2 + 0x0017)
#define KDATA_MIXER_XFER8               (KDATA_BASE_ADDR2 + 0x0018)
#define KDATA_MIXER_XFER9               (KDATA_BASE_ADDR2 + 0x0019)
#define KDATA_MIXER_XFER_ENDMARK        (KDATA_BASE_ADDR2 + 0x001A)

#define KDATA_MIXER_TASK_NUMBER         (KDATA_BASE_ADDR2 + 0x001B)
#define KDATA_CURRENT_MIXER             (KDATA_BASE_ADDR2 + 0x001C)
#define KDATA_MIXER_ACTIVE              (KDATA_BASE_ADDR2 + 0x001D)
#define KDATA_MIXER_BANK_STATUS         (KDATA_BASE_ADDR2 + 0x001E)
#define KDATA_DAC_LEFT_VOLUME	        (KDATA_BASE_ADDR2 + 0x001F)
#define KDATA_DAC_RIGHT_VOLUME          (KDATA_BASE_ADDR2 + 0x0020)

#define MAX_INSTANCE_MINISRC            (KDATA_INSTANCE_MINISRC_ENDMARK - KDATA_INSTANCE0_MINISRC)
#define MAX_VIRTUAL_DMA_CHANNELS        (KDATA_DMA_XFER_ENDMARK - KDATA_DMA_XFER0)
#define MAX_VIRTUAL_MIXER_CHANNELS      (KDATA_MIXER_XFER_ENDMARK - KDATA_MIXER_XFER0)
#define MAX_VIRTUAL_ADC1_CHANNELS       (KDATA_ADC1_XFER_ENDMARK - KDATA_ADC1_XFER0)

/*
 * client data area offsets
 */
#define CDATA_INSTANCE_READY            0x00

#define CDATA_HOST_SRC_ADDRL            0x01
#define CDATA_HOST_SRC_ADDRH            0x02
#define CDATA_HOST_SRC_END_PLUS_1L      0x03
#define CDATA_HOST_SRC_END_PLUS_1H      0x04
#define CDATA_HOST_SRC_CURRENTL         0x05
#define CDATA_HOST_SRC_CURRENTH         0x06

#define CDATA_IN_BUF_CONNECT            0x07
#define CDATA_OUT_BUF_CONNECT           0x08

#define CDATA_IN_BUF_BEGIN              0x09
#define CDATA_IN_BUF_END_PLUS_1         0x0A
#define CDATA_IN_BUF_HEAD               0x0B
#define CDATA_IN_BUF_TAIL               0x0C
#define CDATA_OUT_BUF_BEGIN             0x0D
#define CDATA_OUT_BUF_END_PLUS_1        0x0E
#define CDATA_OUT_BUF_HEAD              0x0F
#define CDATA_OUT_BUF_TAIL              0x10

#define CDATA_DMA_CONTROL               0x11
#define CDATA_RESERVED                  0x12

#define CDATA_FREQUENCY                 0x13
#define CDATA_LEFT_VOLUME               0x14
#define CDATA_RIGHT_VOLUME              0x15
#define CDATA_LEFT_SUR_VOL              0x16
#define CDATA_RIGHT_SUR_VOL             0x17

#define CDATA_HEADER_LEN                0x18

#define SRC3_DIRECTION_OFFSET           CDATA_HEADER_LEN
#define SRC3_MODE_OFFSET                (CDATA_HEADER_LEN + 1)
#define SRC3_WORD_LENGTH_OFFSET         (CDATA_HEADER_LEN + 2)
#define SRC3_PARAMETER_OFFSET           (CDATA_HEADER_LEN + 3)
#define SRC3_COEFF_ADDR_OFFSET          (CDATA_HEADER_LEN + 8)
#define SRC3_FILTAP_ADDR_OFFSET         (CDATA_HEADER_LEN + 10)
#define SRC3_TEMP_INBUF_ADDR_OFFSET     (CDATA_HEADER_LEN + 16)
#define SRC3_TEMP_OUTBUF_ADDR_OFFSET    (CDATA_HEADER_LEN + 17)

#define MINISRC_IN_BUFFER_SIZE   ( 0x50 * 2 )
#define MINISRC_OUT_BUFFER_SIZE  ( 0x50 * 2 * 2)
#define MINISRC_OUT_BUFFER_SIZE  ( 0x50 * 2 * 2)
#define MINISRC_TMP_BUFFER_SIZE  ( 112 + ( MINISRC_BIQUAD_STAGE * 3 + 4 ) * 2 * 2 )
#define MINISRC_BIQUAD_STAGE    2
#define MINISRC_COEF_LOC          0x175

#define DMACONTROL_BLOCK_MASK           0x000F
#define  DMAC_BLOCK0_SELECTOR           0x0000
#define  DMAC_BLOCK1_SELECTOR           0x0001
#define  DMAC_BLOCK2_SELECTOR           0x0002
#define  DMAC_BLOCK3_SELECTOR           0x0003
#define  DMAC_BLOCK4_SELECTOR           0x0004
#define  DMAC_BLOCK5_SELECTOR           0x0005
#define  DMAC_BLOCK6_SELECTOR           0x0006
#define  DMAC_BLOCK7_SELECTOR           0x0007
#define  DMAC_BLOCK8_SELECTOR           0x0008
#define  DMAC_BLOCK9_SELECTOR           0x0009
#define  DMAC_BLOCKA_SELECTOR           0x000A
#define  DMAC_BLOCKB_SELECTOR           0x000B
#define  DMAC_BLOCKC_SELECTOR           0x000C
#define  DMAC_BLOCKD_SELECTOR           0x000D
#define  DMAC_BLOCKE_SELECTOR           0x000E
#define  DMAC_BLOCKF_SELECTOR           0x000F
#define DMACONTROL_PAGE_MASK            0x00F0
#define  DMAC_PAGE0_SELECTOR            0x0030
#define  DMAC_PAGE1_SELECTOR            0x0020
#define  DMAC_PAGE2_SELECTOR            0x0010
#define  DMAC_PAGE3_SELECTOR            0x0000
#define DMACONTROL_AUTOREPEAT           0x1000
#define DMACONTROL_STOPPED              0x2000
#define DMACONTROL_DIRECTION            0x0100

/*
 * an arbitrary volume we set the internal
 * volume settings to so that the ac97 volume
 * range is a little less insane.  0x7fff is 
 * max.
 */
#define ARB_VOLUME ( 0x6800 )

/*
 */

struct m3_list {
	int curlen;
	int mem_addr;
	int max;
};

struct m3_dma {

	int number;
	struct snd_pcm_substream *substream;

	struct assp_instance {
		unsigned short code, data;
	} inst;

	int running;
	int opened;

	unsigned long buffer_addr;
	int dma_size;
	int period_size;
	unsigned int hwptr;
	int count;

	int index[3];
	struct m3_list *index_list[3];

        int in_lists;
	
	struct list_head list;

};
    
struct snd_m3 {
	
	struct snd_card *card;

	unsigned long iobase;

	int irq;
	unsigned int allegro_flag : 1;

	struct snd_ac97 *ac97;

	struct snd_pcm *pcm;

	struct pci_dev *pci;

	int dacs_active;
	int timer_users;

	struct m3_list  msrc_list;
	struct m3_list  mixer_list;
	struct m3_list  adc1_list;
	struct m3_list  dma_list;

	/* for storing reset state..*/
	u8 reset_state;

	int external_amp;
	int amp_gpio;	/* gpio pin #  for external amp, -1 = default */
	unsigned int hv_config;		/* hardware-volume config bits */
	unsigned irda_workaround :1;	/* avoid to touch 0x10 on GPIO_DIRECTION
					   (e.g. for IrDA on Dell Inspirons) */
	unsigned is_omnibook :1;	/* Do HP OmniBook GPIO magic? */

	/* midi */
	struct snd_rawmidi *rmidi;

	/* pcm streams */
	int num_substreams;
	struct m3_dma *substreams;

	spinlock_t reg_lock;
	spinlock_t ac97_lock;

	struct snd_kcontrol *master_switch;
	struct snd_kcontrol *master_volume;
	struct tasklet_struct hwvol_tq;

#ifdef CONFIG_PM
	u16 *suspend_mem;
#endif

	const struct firmware *assp_kernel_image;
	const struct firmware *assp_minisrc_image;
};

/*
 * pci ids
 */
static struct pci_device_id snd_m3_ids[] = {
	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO_1, PCI_ANY_ID, PCI_ANY_ID,
	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO, PCI_ANY_ID, PCI_ANY_ID,
	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2LE, PCI_ANY_ID, PCI_ANY_ID,
	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2, PCI_ANY_ID, PCI_ANY_ID,
	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3, PCI_ANY_ID, PCI_ANY_ID,
	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_1, PCI_ANY_ID, PCI_ANY_ID,
	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_HW, PCI_ANY_ID, PCI_ANY_ID,
	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_2, PCI_ANY_ID, PCI_ANY_ID,
	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
	{0,},
};

MODULE_DEVICE_TABLE(pci, snd_m3_ids);

static struct snd_pci_quirk m3_amp_quirk_list[] __devinitdata = {
	SND_PCI_QUIRK(0x10f7, 0x833e, "Panasonic CF-28", 0x0d),
	SND_PCI_QUIRK(0x10f7, 0x833d, "Panasonic CF-72", 0x0d),
	SND_PCI_QUIRK(0x1033, 0x80f1, "NEC LM800J/7", 0x03),
	SND_PCI_QUIRK(0x1509, 0x1740, "LEGEND ZhaoYang 3100CF", 0x03),
	{ } /* END */
};

static struct snd_pci_quirk m3_irda_quirk_list[] __devinitdata = {
	SND_PCI_QUIRK(0x1028, 0x00b0, "Dell Inspiron 4000", 1),
	SND_PCI_QUIRK(0x1028, 0x00a4, "Dell Inspiron 8000", 1),
	SND_PCI_QUIRK(0x1028, 0x00e6, "Dell Inspiron 8100", 1),
	{ } /* END */
};

/* hardware volume quirks */
static struct snd_pci_quirk m3_hv_quirk_list[] __devinitdata = {
	/* Allegro chips */
	SND_PCI_QUIRK(0x0E11, 0x002E, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x0E11, 0x0094, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x0E11, 0xB112, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x0E11, 0xB114, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x103C, 0x0012, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x103C, 0x0018, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x103C, 0x001C, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x103C, 0x001D, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x103C, 0x001E, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x107B, 0x3350, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x10F7, 0x8338, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x10F7, 0x833C, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x10F7, 0x833D, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x10F7, 0x833E, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x10F7, 0x833F, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x13BD, 0x1018, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x13BD, 0x1019, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x13BD, 0x101A, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x14FF, 0x0F03, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x14FF, 0x0F04, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x14FF, 0x0F05, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x156D, 0xB400, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x156D, 0xB795, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x156D, 0xB797, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x156D, 0xC700, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
	SND_PCI_QUIRK(0x1033, 0x80F1, NULL,
		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x103C, 0x001A, NULL, /* HP OmniBook 6100 */
		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x107B, 0x340A, NULL,
		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x107B, 0x3450, NULL,
		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x109F, 0x3134, NULL,
		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x109F, 0x3161, NULL,
		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x144D, 0x3280, NULL,
		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x144D, 0x3281, NULL,
		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x144D, 0xC002, NULL,
		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x144D, 0xC003, NULL,
		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x1509, 0x1740, NULL,
		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x1610, 0x0010, NULL,
		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x1042, 0x1042, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x107B, 0x9500, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x14FF, 0x0F06, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x1558, 0x8586, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x161F, 0x2011, NULL, HV_CTRL_ENABLE),
	/* Maestro3 chips */
	SND_PCI_QUIRK(0x103C, 0x000E, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x103C, 0x0010, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x103C, 0x0011, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x103C, 0x001B, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x104D, 0x80A6, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x104D, 0x80AA, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x107B, 0x5300, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x110A, 0x1998, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x13BD, 0x1015, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x13BD, 0x101C, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x13BD, 0x1802, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x1599, 0x0715, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x5643, 0x5643, NULL, HV_CTRL_ENABLE),
	SND_PCI_QUIRK(0x144D, 0x3260, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x144D, 0x3261, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x144D, 0xC000, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
	SND_PCI_QUIRK(0x144D, 0xC001, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
	{ } /* END */
};

/* HP Omnibook quirks */
static struct snd_pci_quirk m3_omnibook_quirk_list[] __devinitdata = {
	SND_PCI_QUIRK_ID(0x103c, 0x0010), /* HP OmniBook 6000 */
	SND_PCI_QUIRK_ID(0x103c, 0x0011), /* HP OmniBook 500 */
	{ } /* END */
};

/*
 * lowlevel functions
 */

static inline void snd_m3_outw(struct snd_m3 *chip, u16 value, unsigned long reg)
{
	outw(value, chip->iobase + reg);
}

static inline u16 snd_m3_inw(struct snd_m3 *chip, unsigned long reg)
{
	return inw(chip->iobase + reg);
}

static inline void snd_m3_outb(struct snd_m3 *chip, u8 value, unsigned long reg)
{
	outb(value, chip->iobase + reg);
}

static inline u8 snd_m3_inb(struct snd_m3 *chip, unsigned long reg)
{
	return inb(chip->iobase + reg);
}

/*
 * access 16bit words to the code or data regions of the dsp's memory.
 * index addresses 16bit words.
 */
static u16 snd_m3_assp_read(struct snd_m3 *chip, u16 region, u16 index)
{
	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
	return snd_m3_inw(chip, DSP_PORT_MEMORY_DATA);
}

static void snd_m3_assp_write(struct snd_m3 *chip, u16 region, u16 index, u16 data)
{
	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
	snd_m3_outw(chip, data, DSP_PORT_MEMORY_DATA);
}

static void snd_m3_assp_halt(struct snd_m3 *chip)
{
	chip->reset_state = snd_m3_inb(chip, DSP_PORT_CONTROL_REG_B) & ~REGB_STOP_CLOCK;
	msleep(10);
	snd_m3_outb(chip, chip->reset_state & ~REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
}

static void snd_m3_assp_continue(struct snd_m3 *chip)
{
	snd_m3_outb(chip, chip->reset_state | REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
}


/*
 * This makes me sad. the maestro3 has lists
 * internally that must be packed.. 0 terminates,
 * apparently, or maybe all unused entries have
 * to be 0, the lists have static lengths set
 * by the binary code images.
 */

static int snd_m3_add_list(struct snd_m3 *chip, struct m3_list *list, u16 val)
{
	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  list->mem_addr + list->curlen,
			  val);
	return list->curlen++;
}

static void snd_m3_remove_list(struct snd_m3 *chip, struct m3_list *list, int index)
{
	u16  val;
	int lastindex = list->curlen - 1;

	if (index != lastindex) {
		val = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
				       list->mem_addr + lastindex);
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
				  list->mem_addr + index,
				  val);
	}

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  list->mem_addr + lastindex,
			  0);

	list->curlen--;
}

static void snd_m3_inc_timer_users(struct snd_m3 *chip)
{
	chip->timer_users++;
	if (chip->timer_users != 1) 
		return;

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  KDATA_TIMER_COUNT_RELOAD,
			  240);

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  KDATA_TIMER_COUNT_CURRENT,
			  240);

	snd_m3_outw(chip,
		    snd_m3_inw(chip, HOST_INT_CTRL) | CLKRUN_GEN_ENABLE,
		    HOST_INT_CTRL);
}

static void snd_m3_dec_timer_users(struct snd_m3 *chip)
{
	chip->timer_users--;
	if (chip->timer_users > 0)  
		return;

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  KDATA_TIMER_COUNT_RELOAD,
			  0);

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  KDATA_TIMER_COUNT_CURRENT,
			  0);

	snd_m3_outw(chip,
		    snd_m3_inw(chip, HOST_INT_CTRL) & ~CLKRUN_GEN_ENABLE,
		    HOST_INT_CTRL);
}

/*
 * start/stop
 */

/* spinlock held! */
static int snd_m3_pcm_start(struct snd_m3 *chip, struct m3_dma *s,
			    struct snd_pcm_substream *subs)
{
	if (! s || ! subs)
		return -EINVAL;

	snd_m3_inc_timer_users(chip);
	switch (subs->stream) {
	case SNDRV_PCM_STREAM_PLAYBACK:
		chip->dacs_active++;
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
				  s->inst.data + CDATA_INSTANCE_READY, 1);
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
				  KDATA_MIXER_TASK_NUMBER,
				  chip->dacs_active);
		break;
	case SNDRV_PCM_STREAM_CAPTURE:
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
				  KDATA_ADC1_REQUEST, 1);
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
				  s->inst.data + CDATA_INSTANCE_READY, 1);
		break;
	}
	return 0;
}

/* spinlock held! */
static int snd_m3_pcm_stop(struct snd_m3 *chip, struct m3_dma *s,
			   struct snd_pcm_substream *subs)
{
	if (! s || ! subs)
		return -EINVAL;

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_INSTANCE_READY, 0);
	snd_m3_dec_timer_users(chip);
	switch (subs->stream) {
	case SNDRV_PCM_STREAM_PLAYBACK:
		chip->dacs_active--;
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
				  KDATA_MIXER_TASK_NUMBER, 
				  chip->dacs_active);
		break;
	case SNDRV_PCM_STREAM_CAPTURE:
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
				  KDATA_ADC1_REQUEST, 0);
		break;
	}
	return 0;
}

static int
snd_m3_pcm_trigger(struct snd_pcm_substream *subs, int cmd)
{
	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
	struct m3_dma *s = subs->runtime->private_data;
	int err = -EINVAL;

	snd_assert(s != NULL, return -ENXIO);

	spin_lock(&chip->reg_lock);
	switch (cmd) {
	case SNDRV_PCM_TRIGGER_START:
	case SNDRV_PCM_TRIGGER_RESUME:
		if (s->running)
			err = -EBUSY;
		else {
			s->running = 1;
			err = snd_m3_pcm_start(chip, s, subs);
		}
		break;
	case SNDRV_PCM_TRIGGER_STOP:
	case SNDRV_PCM_TRIGGER_SUSPEND:
		if (! s->running)
			err = 0; /* should return error? */
		else {
			s->running = 0;
			err = snd_m3_pcm_stop(chip, s, subs);
		}
		break;
	}
	spin_unlock(&chip->reg_lock);
	return err;
}

/*
 * setup
 */
static void 
snd_m3_pcm_setup1(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
{
	int dsp_in_size, dsp_out_size, dsp_in_buffer, dsp_out_buffer;
	struct snd_pcm_runtime *runtime = subs->runtime;

	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
	} else {
		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
	}
	dsp_in_buffer = s->inst.data + (MINISRC_TMP_BUFFER_SIZE / 2);
	dsp_out_buffer = dsp_in_buffer + (dsp_in_size / 2) + 1;

	s->dma_size = frames_to_bytes(runtime, runtime->buffer_size);
	s->period_size = frames_to_bytes(runtime, runtime->period_size);
	s->hwptr = 0;
	s->count = 0;

#define LO(x) ((x) & 0xffff)
#define HI(x) LO((x) >> 16)

	/* host dma buffer pointers */
	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_HOST_SRC_ADDRL,
			  LO(s->buffer_addr));

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_HOST_SRC_ADDRH,
			  HI(s->buffer_addr));

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1L,
			  LO(s->buffer_addr + s->dma_size));

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1H,
			  HI(s->buffer_addr + s->dma_size));

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_HOST_SRC_CURRENTL,
			  LO(s->buffer_addr));

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_HOST_SRC_CURRENTH,
			  HI(s->buffer_addr));
#undef LO
#undef HI

	/* dsp buffers */

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_IN_BUF_BEGIN,
			  dsp_in_buffer);

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_IN_BUF_END_PLUS_1,
			  dsp_in_buffer + (dsp_in_size / 2));

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_IN_BUF_HEAD,
			  dsp_in_buffer);
    
	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_IN_BUF_TAIL,
			  dsp_in_buffer);

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_OUT_BUF_BEGIN,
			  dsp_out_buffer);

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_OUT_BUF_END_PLUS_1,
			  dsp_out_buffer + (dsp_out_size / 2));

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_OUT_BUF_HEAD,
			  dsp_out_buffer);

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_OUT_BUF_TAIL,
			  dsp_out_buffer);
}

static void snd_m3_pcm_setup2(struct snd_m3 *chip, struct m3_dma *s,
			      struct snd_pcm_runtime *runtime)
{
	u32 freq;

	/* 
	 * put us in the lists if we're not already there
	 */
	if (! s->in_lists) {
		s->index[0] = snd_m3_add_list(chip, s->index_list[0],
					      s->inst.data >> DP_SHIFT_COUNT);
		s->index[1] = snd_m3_add_list(chip, s->index_list[1],
					      s->inst.data >> DP_SHIFT_COUNT);
		s->index[2] = snd_m3_add_list(chip, s->index_list[2],
					      s->inst.data >> DP_SHIFT_COUNT);
		s->in_lists = 1;
	}

	/* write to 'mono' word */
	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + SRC3_DIRECTION_OFFSET + 1, 
			  runtime->channels == 2 ? 0 : 1);
	/* write to '8bit' word */
	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + SRC3_DIRECTION_OFFSET + 2, 
			  snd_pcm_format_width(runtime->format) == 16 ? 0 : 1);

	/* set up dac/adc rate */
	freq = ((runtime->rate << 15) + 24000 ) / 48000;
	if (freq) 
		freq--;

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_FREQUENCY,
			  freq);
}


static const struct play_vals {
	u16 addr, val;
} pv[] = {
	{CDATA_LEFT_VOLUME, ARB_VOLUME},
	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
	{SRC3_DIRECTION_OFFSET, 0} ,
	/* +1, +2 are stereo/16 bit */
	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
	{SRC3_DIRECTION_OFFSET + 16, 8}, /* numin */
	{SRC3_DIRECTION_OFFSET + 17, 50*2}, /* numout */
	{SRC3_DIRECTION_OFFSET + 18, MINISRC_BIQUAD_STAGE - 1}, /* numstage */
	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
	{SRC3_DIRECTION_OFFSET + 21, 0} /* booster */
};


/* the mode passed should be already shifted and masked */
static void
snd_m3_playback_setup(struct snd_m3 *chip, struct m3_dma *s,
		      struct snd_pcm_substream *subs)
{
	unsigned int i;

	/*
	 * some per client initializers
	 */

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
			  s->inst.data + 40 + 8);

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + SRC3_DIRECTION_OFFSET + 19,
			  s->inst.code + MINISRC_COEF_LOC);

	/* enable or disable low pass filter? */
	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + SRC3_DIRECTION_OFFSET + 22,
			  subs->runtime->rate > 45000 ? 0xff : 0);
    
	/* tell it which way dma is going? */
	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_DMA_CONTROL,
			  DMACONTROL_AUTOREPEAT + DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);

	/*
	 * set an armload of static initializers
	 */
	for (i = 0; i < ARRAY_SIZE(pv); i++) 
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
				  s->inst.data + pv[i].addr, pv[i].val);
}

/*
 *    Native record driver 
 */
static const struct rec_vals {
	u16 addr, val;
} rv[] = {
	{CDATA_LEFT_VOLUME, ARB_VOLUME},
	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
	{SRC3_DIRECTION_OFFSET, 1} ,
	/* +1, +2 are stereo/16 bit */
	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
	{SRC3_DIRECTION_OFFSET + 16, 50},/* numin */
	{SRC3_DIRECTION_OFFSET + 17, 8}, /* numout */
	{SRC3_DIRECTION_OFFSET + 18, 0}, /* numstage */
	{SRC3_DIRECTION_OFFSET + 19, 0}, /* coef */
	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
	{SRC3_DIRECTION_OFFSET + 21, 0}, /* booster */
	{SRC3_DIRECTION_OFFSET + 22, 0xff} /* skip lpf */
};

static void
snd_m3_capture_setup(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
{
	unsigned int i;

	/*
	 * some per client initializers
	 */

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
			  s->inst.data + 40 + 8);

	/* tell it which way dma is going? */
	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  s->inst.data + CDATA_DMA_CONTROL,
			  DMACONTROL_DIRECTION + DMACONTROL_AUTOREPEAT + 
			  DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);

	/*
	 * set an armload of static initializers
	 */
	for (i = 0; i < ARRAY_SIZE(rv); i++) 
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
				  s->inst.data + rv[i].addr, rv[i].val);
}

static int snd_m3_pcm_hw_params(struct snd_pcm_substream *substream,
				struct snd_pcm_hw_params *hw_params)
{
	struct m3_dma *s = substream->runtime->private_data;
	int err;

	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
		return err;
	/* set buffer address */
	s->buffer_addr = substream->runtime->dma_addr;
	if (s->buffer_addr & 0x3) {
		snd_printk(KERN_ERR "oh my, not aligned\n");
		s->buffer_addr = s->buffer_addr & ~0x3;
	}
	return 0;
}

static int snd_m3_pcm_hw_free(struct snd_pcm_substream *substream)
{
	struct m3_dma *s;
	
	if (substream->runtime->private_data == NULL)
		return 0;
	s = substream->runtime->private_data;
	snd_pcm_lib_free_pages(substream);
	s->buffer_addr = 0;
	return 0;
}

static int
snd_m3_pcm_prepare(struct snd_pcm_substream *subs)
{
	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
	struct snd_pcm_runtime *runtime = subs->runtime;
	struct m3_dma *s = runtime->private_data;

	snd_assert(s != NULL, return -ENXIO);

	if (runtime->format != SNDRV_PCM_FORMAT_U8 &&
	    runtime->format != SNDRV_PCM_FORMAT_S16_LE)
		return -EINVAL;
	if (runtime->rate > 48000 ||
	    runtime->rate < 8000)
		return -EINVAL;

	spin_lock_irq(&chip->reg_lock);

	snd_m3_pcm_setup1(chip, s, subs);

	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK)
		snd_m3_playback_setup(chip, s, subs);
	else
		snd_m3_capture_setup(chip, s, subs);

	snd_m3_pcm_setup2(chip, s, runtime);

	spin_unlock_irq(&chip->reg_lock);

	return 0;
}

/*
 * get current pointer
 */
static unsigned int
snd_m3_get_pointer(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
{
	u16 hi = 0, lo = 0;
	int retry = 10;
	u32 addr;

	/*
	 * try and get a valid answer
	 */
	while (retry--) {
		hi =  snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
				       s->inst.data + CDATA_HOST_SRC_CURRENTH);

		lo = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
				      s->inst.data + CDATA_HOST_SRC_CURRENTL);

		if (hi == snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
					   s->inst.data + CDATA_HOST_SRC_CURRENTH))
			break;
	}
	addr = lo | ((u32)hi<<16);
	return (unsigned int)(addr - s->buffer_addr);
}

static snd_pcm_uframes_t
snd_m3_pcm_pointer(struct snd_pcm_substream *subs)
{
	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
	unsigned int ptr;
	struct m3_dma *s = subs->runtime->private_data;
	snd_assert(s != NULL, return 0);

	spin_lock(&chip->reg_lock);
	ptr = snd_m3_get_pointer(chip, s, subs);
	spin_unlock(&chip->reg_lock);
	return bytes_to_frames(subs->runtime, ptr);
}


/* update pointer */
/* spinlock held! */
static void snd_m3_update_ptr(struct snd_m3 *chip, struct m3_dma *s)
{
	struct snd_pcm_substream *subs = s->substream;
	unsigned int hwptr;
	int diff;

	if (! s->running)
		return;

	hwptr = snd_m3_get_pointer(chip, s, subs);

	/* try to avoid expensive modulo divisions */
	if (hwptr >= s->dma_size)
		hwptr %= s->dma_size;

	diff = s->dma_size + hwptr - s->hwptr;
	if (diff >= s->dma_size)
		diff %= s->dma_size;

	s->hwptr = hwptr;
	s->count += diff;

	if (s->count >= (signed)s->period_size) {

		if (s->count < 2 * (signed)s->period_size)
			s->count -= (signed)s->period_size;
		else
			s->count %= s->period_size;

		spin_unlock(&chip->reg_lock);
		snd_pcm_period_elapsed(subs);
		spin_lock(&chip->reg_lock);
	}
}

static void snd_m3_update_hw_volume(unsigned long private_data)
{
	struct snd_m3 *chip = (struct snd_m3 *) private_data;
	int x, val;
	unsigned long flags;

	/* Figure out which volume control button was pushed,
	   based on differences from the default register
	   values. */
	x = inb(chip->iobase + SHADOW_MIX_REG_VOICE) & 0xee;

	/* Reset the volume control registers. */
	outb(0x88, chip->iobase + SHADOW_MIX_REG_VOICE);
	outb(0x88, chip->iobase + HW_VOL_COUNTER_VOICE);
	outb(0x88, chip->iobase + SHADOW_MIX_REG_MASTER);
	outb(0x88, chip->iobase + HW_VOL_COUNTER_MASTER);

	if (!chip->master_switch || !chip->master_volume)
		return;

	/* FIXME: we can't call snd_ac97_* functions since here is in tasklet. */
	spin_lock_irqsave(&chip->ac97_lock, flags);

	val = chip->ac97->regs[AC97_MASTER_VOL];
	switch (x) {
	case 0x88:
		/* mute */
		val ^= 0x8000;
		chip->ac97->regs[AC97_MASTER_VOL] = val;
		outw(val, chip->iobase + CODEC_DATA);
		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
			       &chip->master_switch->id);
		break;
	case 0xaa:
		/* volume up */
		if ((val & 0x7f) > 0)
			val--;
		if ((val & 0x7f00) > 0)
			val -= 0x0100;
		chip->ac97->regs[AC97_MASTER_VOL] = val;
		outw(val, chip->iobase + CODEC_DATA);
		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
			       &chip->master_volume->id);
		break;
	case 0x66:
		/* volume down */
		if ((val & 0x7f) < 0x1f)
			val++;
		if ((val & 0x7f00) < 0x1f00)
			val += 0x0100;
		chip->ac97->regs[AC97_MASTER_VOL] = val;
		outw(val, chip->iobase + CODEC_DATA);
		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
			       &chip->master_volume->id);
		break;
	}
	spin_unlock_irqrestore(&chip->ac97_lock, flags);
}

static irqreturn_t snd_m3_interrupt(int irq, void *dev_id)
{
	struct snd_m3 *chip = dev_id;
	u8 status;
	int i;

	status = inb(chip->iobase + HOST_INT_STATUS);

	if (status == 0xff)
		return IRQ_NONE;

	if (status & HV_INT_PENDING)
		tasklet_hi_schedule(&chip->hwvol_tq);

	/*
	 * ack an assp int if its running
	 * and has an int pending
	 */
	if (status & ASSP_INT_PENDING) {
		u8 ctl = inb(chip->iobase + ASSP_CONTROL_B);
		if (!(ctl & STOP_ASSP_CLOCK)) {
			ctl = inb(chip->iobase + ASSP_HOST_INT_STATUS);
			if (ctl & DSP2HOST_REQ_TIMER) {
				outb(DSP2HOST_REQ_TIMER, chip->iobase + ASSP_HOST_INT_STATUS);
				/* update adc/dac info if it was a timer int */
				spin_lock(&chip->reg_lock);
				for (i = 0; i < chip->num_substreams; i++) {
					struct m3_dma *s = &chip->substreams[i];
					if (s->running)
						snd_m3_update_ptr(chip, s);
				}
				spin_unlock(&chip->reg_lock);
			}
		}
	}

#if 0 /* TODO: not supported yet */
	if ((status & MPU401_INT_PENDING) && chip->rmidi)
		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
#endif

	/* ack ints */
	outb(status, chip->iobase + HOST_INT_STATUS);

	return IRQ_HANDLED;
}


/*
 */

static struct snd_pcm_hardware snd_m3_playback =
{
	.info =			(SNDRV_PCM_INFO_MMAP |
				 SNDRV_PCM_INFO_INTERLEAVED |
				 SNDRV_PCM_INFO_MMAP_VALID |
				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
				 /*SNDRV_PCM_INFO_PAUSE |*/
				 SNDRV_PCM_INFO_RESUME),
	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
	.rate_min =		8000,
	.rate_max =		48000,
	.channels_min =		1,
	.channels_max =		2,
	.buffer_bytes_max =	(512*1024),
	.period_bytes_min =	64,
	.period_bytes_max =	(512*1024),
	.periods_min =		1,
	.periods_max =		1024,
};

static struct snd_pcm_hardware snd_m3_capture =
{
	.info =			(SNDRV_PCM_INFO_MMAP |
				 SNDRV_PCM_INFO_INTERLEAVED |
				 SNDRV_PCM_INFO_MMAP_VALID |
				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
				 /*SNDRV_PCM_INFO_PAUSE |*/
				 SNDRV_PCM_INFO_RESUME),
	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
	.rate_min =		8000,
	.rate_max =		48000,
	.channels_min =		1,
	.channels_max =		2,
	.buffer_bytes_max =	(512*1024),
	.period_bytes_min =	64,
	.period_bytes_max =	(512*1024),
	.periods_min =		1,
	.periods_max =		1024,
};


/*
 */

static int
snd_m3_substream_open(struct snd_m3 *chip, struct snd_pcm_substream *subs)
{
	int i;
	struct m3_dma *s;

	spin_lock_irq(&chip->reg_lock);
	for (i = 0; i < chip->num_substreams; i++) {
		s = &chip->substreams[i];
		if (! s->opened)
			goto __found;
	}
	spin_unlock_irq(&chip->reg_lock);
	return -ENOMEM;
__found:
	s->opened = 1;
	s->running = 0;
	spin_unlock_irq(&chip->reg_lock);

	subs->runtime->private_data = s;
	s->substream = subs;

	/* set list owners */
	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
		s->index_list[0] = &chip->mixer_list;
	} else
		s->index_list[0] = &chip->adc1_list;
	s->index_list[1] = &chip->msrc_list;
	s->index_list[2] = &chip->dma_list;

	return 0;
}

static void
snd_m3_substream_close(struct snd_m3 *chip, struct snd_pcm_substream *subs)
{
	struct m3_dma *s = subs->runtime->private_data;

	if (s == NULL)
		return; /* not opened properly */

	spin_lock_irq(&chip->reg_lock);
	if (s->substream && s->running)
		snd_m3_pcm_stop(chip, s, s->substream); /* does this happen? */
	if (s->in_lists) {
		snd_m3_remove_list(chip, s->index_list[0], s->index[0]);
		snd_m3_remove_list(chip, s->index_list[1], s->index[1]);
		snd_m3_remove_list(chip, s->index_list[2], s->index[2]);
		s->in_lists = 0;
	}
	s->running = 0;
	s->opened = 0;
	spin_unlock_irq(&chip->reg_lock);
}

static int
snd_m3_playback_open(struct snd_pcm_substream *subs)
{
	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
	struct snd_pcm_runtime *runtime = subs->runtime;
	int err;

	if ((err = snd_m3_substream_open(chip, subs)) < 0)
		return err;

	runtime->hw = snd_m3_playback;
	snd_pcm_set_sync(subs);

	return 0;
}

static int
snd_m3_playback_close(struct snd_pcm_substream *subs)
{
	struct snd_m3 *chip = snd_pcm_substream_chip(subs);

	snd_m3_substream_close(chip, subs);
	return 0;
}

static int
snd_m3_capture_open(struct snd_pcm_substream *subs)
{
	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
	struct snd_pcm_runtime *runtime = subs->runtime;
	int err;

	if ((err = snd_m3_substream_open(chip, subs)) < 0)
		return err;

	runtime->hw = snd_m3_capture;
	snd_pcm_set_sync(subs);

	return 0;
}

static int
snd_m3_capture_close(struct snd_pcm_substream *subs)
{
	struct snd_m3 *chip = snd_pcm_substream_chip(subs);

	snd_m3_substream_close(chip, subs);
	return 0;
}

/*
 * create pcm instance
 */

static struct snd_pcm_ops snd_m3_playback_ops = {
	.open =		snd_m3_playback_open,
	.close =	snd_m3_playback_close,
	.ioctl =	snd_pcm_lib_ioctl,
	.hw_params =	snd_m3_pcm_hw_params,
	.hw_free =	snd_m3_pcm_hw_free,
	.prepare =	snd_m3_pcm_prepare,
	.trigger =	snd_m3_pcm_trigger,
	.pointer =	snd_m3_pcm_pointer,
};

static struct snd_pcm_ops snd_m3_capture_ops = {
	.open =		snd_m3_capture_open,
	.close =	snd_m3_capture_close,
	.ioctl =	snd_pcm_lib_ioctl,
	.hw_params =	snd_m3_pcm_hw_params,
	.hw_free =	snd_m3_pcm_hw_free,
	.prepare =	snd_m3_pcm_prepare,
	.trigger =	snd_m3_pcm_trigger,
	.pointer =	snd_m3_pcm_pointer,
};

static int __devinit
snd_m3_pcm(struct snd_m3 * chip, int device)
{
	struct snd_pcm *pcm;
	int err;

	err = snd_pcm_new(chip->card, chip->card->driver, device,
			  MAX_PLAYBACKS, MAX_CAPTURES, &pcm);
	if (err < 0)
		return err;

	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_m3_playback_ops);
	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_m3_capture_ops);

	pcm->private_data = chip;
	pcm->info_flags = 0;
	strcpy(pcm->name, chip->card->driver);
	chip->pcm = pcm;
	
	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
					      snd_dma_pci_data(chip->pci), 64*1024, 64*1024);

	return 0;
}


/*
 * ac97 interface
 */

/*
 * Wait for the ac97 serial bus to be free.
 * return nonzero if the bus is still busy.
 */
static int snd_m3_ac97_wait(struct snd_m3 *chip)
{
	int i = 10000;

	do {
		if (! (snd_m3_inb(chip, 0x30) & 1))
			return 0;
		cpu_relax();
	} while (i-- > 0);

	snd_printk(KERN_ERR "ac97 serial bus busy\n");
	return 1;
}

static unsigned short
snd_m3_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
{
	struct snd_m3 *chip = ac97->private_data;
	unsigned long flags;
	unsigned short data = 0xffff;

	if (snd_m3_ac97_wait(chip))
		goto fail;
	spin_lock_irqsave(&chip->ac97_lock, flags);
	snd_m3_outb(chip, 0x80 | (reg & 0x7f), CODEC_COMMAND);
	if (snd_m3_ac97_wait(chip))
		goto fail_unlock;
	data = snd_m3_inw(chip, CODEC_DATA);
fail_unlock:
	spin_unlock_irqrestore(&chip->ac97_lock, flags);
fail:
	return data;
}

static void
snd_m3_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val)
{
	struct snd_m3 *chip = ac97->private_data;
	unsigned long flags;

	if (snd_m3_ac97_wait(chip))
		return;
	spin_lock_irqsave(&chip->ac97_lock, flags);
	snd_m3_outw(chip, val, CODEC_DATA);
	snd_m3_outb(chip, reg & 0x7f, CODEC_COMMAND);
	spin_unlock_irqrestore(&chip->ac97_lock, flags);
}


static void snd_m3_remote_codec_config(int io, int isremote)
{
	isremote = isremote ? 1 : 0;

	outw((inw(io + RING_BUS_CTRL_B) & ~SECOND_CODEC_ID_MASK) | isremote,
	     io + RING_BUS_CTRL_B);
	outw((inw(io + SDO_OUT_DEST_CTRL) & ~COMMAND_ADDR_OUT) | isremote,
	     io + SDO_OUT_DEST_CTRL);
	outw((inw(io + SDO_IN_DEST_CTRL) & ~STATUS_ADDR_IN) | isremote,
	     io + SDO_IN_DEST_CTRL);
}

/* 
 * hack, returns non zero on err 
 */
static int snd_m3_try_read_vendor(struct snd_m3 *chip)
{
	u16 ret;

	if (snd_m3_ac97_wait(chip))
		return 1;

	snd_m3_outb(chip, 0x80 | (AC97_VENDOR_ID1 & 0x7f), 0x30);

	if (snd_m3_ac97_wait(chip))
		return 1;

	ret = snd_m3_inw(chip, 0x32);

	return (ret == 0) || (ret == 0xffff);
}

static void snd_m3_ac97_reset(struct snd_m3 *chip)
{
	u16 dir;
	int delay1 = 0, delay2 = 0, i;
	int io = chip->iobase;

	if (chip->allegro_flag) {
		/*
		 * the onboard codec on the allegro seems 
		 * to want to wait a very long time before
		 * coming back to life 
		 */
		delay1 = 50;
		delay2 = 800;
	} else {
		/* maestro3 */
		delay1 = 20;
		delay2 = 500;
	}

	for (i = 0; i < 5; i++) {
		dir = inw(io + GPIO_DIRECTION);
		if (!chip->irda_workaround)
			dir |= 0x10; /* assuming pci bus master? */

		snd_m3_remote_codec_config(io, 0);

		outw(IO_SRAM_ENABLE, io + RING_BUS_CTRL_A);
		udelay(20);

		outw(dir & ~GPO_PRIMARY_AC97 , io + GPIO_DIRECTION);
		outw(~GPO_PRIMARY_AC97 , io + GPIO_MASK);
		outw(0, io + GPIO_DATA);
		outw(dir | GPO_PRIMARY_AC97, io + GPIO_DIRECTION);

		schedule_timeout_uninterruptible(msecs_to_jiffies(delay1));

		outw(GPO_PRIMARY_AC97, io + GPIO_DATA);
		udelay(5);
		/* ok, bring back the ac-link */
		outw(IO_SRAM_ENABLE | SERIAL_AC_LINK_ENABLE, io + RING_BUS_CTRL_A);
		outw(~0, io + GPIO_MASK);

		schedule_timeout_uninterruptible(msecs_to_jiffies(delay2));

		if (! snd_m3_try_read_vendor(chip))
			break;

		delay1 += 10;
		delay2 += 100;

		snd_printd("maestro3: retrying codec reset with delays of %d and %d ms\n",
			   delay1, delay2);
	}

#if 0
	/* more gung-ho reset that doesn't
	 * seem to work anywhere :)
	 */
	tmp = inw(io + RING_BUS_CTRL_A);
	outw(RAC_SDFS_ENABLE|LAC_SDFS_ENABLE, io + RING_BUS_CTRL_A);
	msleep(20);
	outw(tmp, io + RING_BUS_CTRL_A);
	msleep(50);
#endif
}

static int __devinit snd_m3_mixer(struct snd_m3 *chip)
{
	struct snd_ac97_bus *pbus;
	struct snd_ac97_template ac97;
	struct snd_ctl_elem_id id;
	int err;
	static struct snd_ac97_bus_ops ops = {
		.write = snd_m3_ac97_write,
		.read = snd_m3_ac97_read,
	};

	if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
		return err;
	
	memset(&ac97, 0, sizeof(ac97));
	ac97.private_data = chip;
	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
		return err;

	/* seems ac97 PCM needs initialization.. hack hack.. */
	snd_ac97_write(chip->ac97, AC97_PCM, 0x8000 | (15 << 8) | 15);
	schedule_timeout_uninterruptible(msecs_to_jiffies(100));
	snd_ac97_write(chip->ac97, AC97_PCM, 0);

	memset(&id, 0, sizeof(id));
	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	strcpy(id.name, "Master Playback Switch");
	chip->master_switch = snd_ctl_find_id(chip->card, &id);
	memset(&id, 0, sizeof(id));
	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	strcpy(id.name, "Master Playback Volume");
	chip->master_volume = snd_ctl_find_id(chip->card, &id);

	return 0;
}


#ifdef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL

/*
 * DSP Code images
 */

static const u16 assp_kernel_image[] = {
    0x7980, 0x0030, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x00FB, 0x7980, 0x00DD, 0x7980, 0x03B4, 
    0x7980, 0x0332, 0x7980, 0x0287, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4, 
    0x7980, 0x031A, 0x7980, 0x03B4, 0x7980, 0x022F, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4, 
    0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x0063, 0x7980, 0x006B, 0x7980, 0x03B4, 0x7980, 0x03B4, 
    0xBF80, 0x2C7C, 0x8806, 0x8804, 0xBE40, 0xBC20, 0xAE09, 0x1000, 0xAE0A, 0x0001, 0x6938, 0xEB08, 
    0x0053, 0x695A, 0xEB08, 0x00D6, 0x0009, 0x8B88, 0x6980, 0xE388, 0x0036, 0xBE30, 0xBC20, 0x6909, 
    0xB801, 0x9009, 0xBE41, 0xBE41, 0x6928, 0xEB88, 0x0078, 0xBE41, 0xBE40, 0x7980, 0x0038, 0xBE41, 
    0xBE41, 0x903A, 0x6938, 0xE308, 0x0056, 0x903A, 0xBE41, 0xBE40, 0xEF00, 0x903A, 0x6939, 0xE308, 
    0x005E, 0x903A, 0xEF00, 0x690B, 0x660C, 0xEF8C, 0x690A, 0x660C, 0x620B, 0x6609, 0xEF00, 0x6910, 
    0x660F, 0xEF04, 0xE388, 0x0075, 0x690E, 0x660F, 0x6210, 0x660D, 0xEF00, 0x690E, 0x660D, 0xEF00, 
    0xAE70, 0x0001, 0xBC20, 0xAE27, 0x0001, 0x6939, 0xEB08, 0x005D, 0x6926, 0xB801, 0x9026, 0x0026, 
    0x8B88, 0x6980, 0xE388, 0x00CB, 0x9028, 0x0D28, 0x4211, 0xE100, 0x007A, 0x4711, 0xE100, 0x00A0, 
    0x7A80, 0x0063, 0xB811, 0x660A, 0x6209, 0xE304, 0x007A, 0x0C0B, 0x4005, 0x100A, 0xBA01, 0x9012, 
    0x0C12, 0x4002, 0x7980, 0x00AF, 0x7A80, 0x006B, 0xBE02, 0x620E, 0x660D, 0xBA10, 0xE344, 0x007A, 
    0x0C10, 0x4005, 0x100E, 0xBA01, 0x9012, 0x0C12, 0x4002, 0x1003, 0xBA02, 0x9012, 0x0C12, 0x4000, 
    0x1003, 0xE388, 0x00BA, 0x1004, 0x7980, 0x00BC, 0x1004, 0xBA01, 0x9012, 0x0C12, 0x4001, 0x0C05, 
    0x4003, 0x0C06, 0x4004, 0x1011, 0xBFB0, 0x01FF, 0x9012, 0x0C12, 0x4006, 0xBC20, 0xEF00, 0xAE26, 
    0x1028, 0x6970, 0xBFD0, 0x0001, 0x9070, 0xE388, 0x007A, 0xAE28, 0x0000, 0xEF00, 0xAE70, 0x0300, 
    0x0C70, 0xB00C, 0xAE5A, 0x0000, 0xEF00, 0x7A80, 0x038A, 0x697F, 0xB801, 0x907F, 0x0056, 0x8B88, 
    0x0CA0, 0xB008, 0xAF71, 0xB000, 0x4E71, 0xE200, 0x00F3, 0xAE56, 0x1057, 0x0056, 0x0CA0, 0xB008, 
    0x8056, 0x7980, 0x03A1, 0x0810, 0xBFA0, 0x1059, 0xE304, 0x03A1, 0x8056, 0x7980, 0x03A1, 0x7A80, 
    0x038A, 0xBF01, 0xBE43, 0xBE59, 0x907C, 0x6937, 0xE388, 0x010D, 0xBA01, 0xE308, 0x010C, 0xAE71, 
    0x0004, 0x0C71, 0x5000, 0x6936, 0x9037, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80, 0xBF0A, 
    0x0560, 0xF500, 0xBF0A, 0x0520, 0xB900, 0xBB17, 0x90A0, 0x6917, 0xE388, 0x0148, 0x0D17, 0xE100, 
    0x0127, 0xBF0C, 0x0578, 0xBF0D, 0x057C, 0x7980, 0x012B, 0xBF0C, 0x0538, 0xBF0D, 0x053C, 0x6900, 
    0xE308, 0x0135, 0x8B8C, 0xBE59, 0xBB07, 0x90A0, 0xBC20, 0x7980, 0x0157, 0x030C, 0x8B8B, 0xB903, 
    0x8809, 0xBEC6, 0x013E, 0x69AC, 0x90AB, 0x69AD, 0x90AB, 0x0813, 0x660A, 0xE344, 0x0144, 0x0309, 
    0x830C, 0xBC20, 0x7980, 0x0157, 0x6955, 0xE388, 0x0157, 0x7C38, 0xBF0B, 0x0578, 0xF500, 0xBF0B, 
    0x0538, 0xB907, 0x8809, 0xBEC6, 0x0156, 0x10AB, 0x90AA, 0x6974, 0xE388, 0x0163, 0xAE72, 0x0540, 
    0xF500, 0xAE72, 0x0500, 0xAE61, 0x103B, 0x7A80, 0x02F6, 0x6978, 0xE388, 0x0182, 0x8B8C, 0xBF0C, 
    0x0560, 0xE500, 0x7C40, 0x0814, 0xBA20, 0x8812, 0x733D, 0x7A80, 0x0380, 0x733E, 0x7A80, 0x0380, 
    0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA2C, 0x8812, 0x733F, 0x7A80, 0x0380, 0x7340, 
    0x7A80, 0x0380, 0x6975, 0xE388, 0x018E, 0xAE72, 0x0548, 0xF500, 0xAE72, 0x0508, 0xAE61, 0x1041, 
    0x7A80, 0x02F6, 0x6979, 0xE388, 0x01AD, 0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA18, 
    0x8812, 0x7343, 0x7A80, 0x0380, 0x7344, 0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 
    0x0814, 0xBA24, 0x8812, 0x7345, 0x7A80, 0x0380, 0x7346, 0x7A80, 0x0380, 0x6976, 0xE388, 0x01B9, 
    0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x1047, 0x7A80, 0x02F6, 0x697A, 0xE388, 0x01D8, 
    0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA08, 0x8812, 0x7349, 0x7A80, 0x0380, 0x734A, 
    0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA14, 0x8812, 0x734B, 0x7A80, 
    0x0380, 0x734C, 0x7A80, 0x0380, 0xBC21, 0xAE1C, 0x1090, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40, 
    0x0812, 0xB804, 0x8813, 0x8B8D, 0xBF0D, 0x056C, 0xE500, 0x7C40, 0x0815, 0xB804, 0x8811, 0x7A80, 
    0x034A, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40, 0x731F, 0xB903, 0x8809, 0xBEC6, 0x01F9, 0x548A, 
    0xBE03, 0x98A0, 0x7320, 0xB903, 0x8809, 0xBEC6, 0x0201, 0x548A, 0xBE03, 0x98A0, 0x1F20, 0x2F1F, 
    0x9826, 0xBC20, 0x6935, 0xE388, 0x03A1, 0x6933, 0xB801, 0x9033, 0xBFA0, 0x02EE, 0xE308, 0x03A1, 
    0x9033, 0xBF00, 0x6951, 0xE388, 0x021F, 0x7334, 0xBE80, 0x5760, 0xBE03, 0x9F7E, 0xBE59, 0x9034, 
    0x697E, 0x0D51, 0x9013, 0xBC20, 0x695C, 0xE388, 0x03A1, 0x735E, 0xBE80, 0x5760, 0xBE03, 0x9F7E, 
    0xBE59, 0x905E, 0x697E, 0x0D5C, 0x9013, 0x7980, 0x03A1, 0x7A80, 0x038A, 0xBF01, 0xBE43, 0x6977, 
    0xE388, 0x024E, 0xAE61, 0x104D, 0x0061, 0x8B88, 0x6980, 0xE388, 0x024E, 0x9071, 0x0D71, 0x000B, 
    0xAFA0, 0x8010, 0xAFA0, 0x8010, 0x0810, 0x660A, 0xE308, 0x0249, 0x0009, 0x0810, 0x660C, 0xE388, 
    0x024E, 0x800B, 0xBC20, 0x697B, 0xE388, 0x03A1, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80, 
    0xE100, 0x0266, 0x697C, 0xBF90, 0x0560, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0564, 0x9073, 0x0473, 
    0x7980, 0x0270, 0x697C, 0xBF90, 0x0520, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0524, 0x9073, 0x0473, 
    0x697C, 0xB801, 0x907C, 0xBF0A, 0x10FD, 0x8B8A, 0xAF80, 0x8010, 0x734F, 0x548A, 0xBE03, 0x9880, 
    0xBC21, 0x7326, 0x548B, 0xBE03, 0x618B, 0x988C, 0xBE03, 0x6180, 0x9880, 0x7980, 0x03A1, 0x7A80, 
    0x038A, 0x0D28, 0x4711, 0xE100, 0x02BE, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388, 0x02B6, 
    0xBFA0, 0x0800, 0xE388, 0x02B2, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02A3, 0x6909, 
    0x900B, 0x7980, 0x02A5, 0xAF0B, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100, 0x02ED, 
    0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x6909, 0x900B, 0x7980, 0x02B8, 0xAF0B, 0x4005, 
    0xAF05, 0x4003, 0xAF06, 0x4004, 0x7980, 0x02ED, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388, 
    0x02E7, 0xBFA0, 0x0800, 0xE388, 0x02E3, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02D4, 
    0x690D, 0x9010, 0x7980, 0x02D6, 0xAF10, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100, 
    0x02ED, 0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x690D, 0x9010, 0x7980, 0x02E9, 0xAF10, 
    0x4005, 0xAF05, 0x4003, 0xAF06, 0x4004, 0xBC20, 0x6970, 0x9071, 0x7A80, 0x0078, 0x6971, 0x9070, 
    0x7980, 0x03A1, 0xBC20, 0x0361, 0x8B8B, 0x6980, 0xEF88, 0x0272, 0x0372, 0x7804, 0x9071, 0x0D71, 
    0x8B8A, 0x000B, 0xB903, 0x8809, 0xBEC6, 0x0309, 0x69A8, 0x90AB, 0x69A8, 0x90AA, 0x0810, 0x660A, 
    0xE344, 0x030F, 0x0009, 0x0810, 0x660C, 0xE388, 0x0314, 0x800B, 0xBC20, 0x6961, 0xB801, 0x9061, 
    0x7980, 0x02F7, 0x7A80, 0x038A, 0x5D35, 0x0001, 0x6934, 0xB801, 0x9034, 0xBF0A, 0x109E, 0x8B8A, 
    0xAF80, 0x8014, 0x4880, 0xAE72, 0x0550, 0xF500, 0xAE72, 0x0510, 0xAE61, 0x1051, 0x7A80, 0x02F6, 
    0x7980, 0x03A1, 0x7A80, 0x038A, 0x5D35, 0x0002, 0x695E, 0xB801, 0x905E, 0xBF0A, 0x109E, 0x8B8A, 
    0xAF80, 0x8014, 0x4780, 0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x105C, 0x7A80, 0x02F6, 
    0x7980, 0x03A1, 0x001C, 0x8B88, 0x6980, 0xEF88, 0x901D, 0x0D1D, 0x100F, 0x6610, 0xE38C, 0x0358, 
    0x690E, 0x6610, 0x620F, 0x660D, 0xBA0F, 0xE301, 0x037A, 0x0410, 0x8B8A, 0xB903, 0x8809, 0xBEC6, 
    0x036C, 0x6A8C, 0x61AA, 0x98AB, 0x6A8C, 0x61AB, 0x98AD, 0x6A8C, 0x61AD, 0x98A9, 0x6A8C, 0x61A9, 
    0x98AA, 0x7C04, 0x8B8B, 0x7C04, 0x8B8D, 0x7C04, 0x8B89, 0x7C04, 0x0814, 0x660E, 0xE308, 0x0379, 
    0x040D, 0x8410, 0xBC21, 0x691C, 0xB801, 0x901C, 0x7980, 0x034A, 0xB903, 0x8809, 0x8B8A, 0xBEC6, 
    0x0388, 0x54AC, 0xBE03, 0x618C, 0x98AA, 0xEF00, 0xBC20, 0xBE46, 0x0809, 0x906B, 0x080A, 0x906C, 
    0x080B, 0x906D, 0x081A, 0x9062, 0x081B, 0x9063, 0x081E, 0x9064, 0xBE59, 0x881E, 0x8065, 0x8166, 
    0x8267, 0x8368, 0x8469, 0x856A, 0xEF00, 0xBC20, 0x696B, 0x8809, 0x696C, 0x880A, 0x696D, 0x880B, 
    0x6962, 0x881A, 0x6963, 0x881B, 0x6964, 0x881E, 0x0065, 0x0166, 0x0267, 0x0368, 0x0469, 0x056A, 
    0xBE3A, 
};

/*
 * Mini sample rate converter code image
 * that is to be loaded at 0x400 on the DSP.
 */
static const u16 assp_minisrc_image[] = {

    0xBF80, 0x101E, 0x906E, 0x006E, 0x8B88, 0x6980, 0xEF88, 0x906F, 0x0D6F, 0x6900, 0xEB08, 0x0412, 
    0xBC20, 0x696E, 0xB801, 0x906E, 0x7980, 0x0403, 0xB90E, 0x8807, 0xBE43, 0xBF01, 0xBE47, 0xBE41, 
    0x7A80, 0x002A, 0xBE40, 0x3029, 0xEFCC, 0xBE41, 0x7A80, 0x0028, 0xBE40, 0x3028, 0xEFCC, 0x6907, 
    0xE308, 0x042A, 0x6909, 0x902C, 0x7980, 0x042C, 0x690D, 0x902C, 0x1009, 0x881A, 0x100A, 0xBA01, 
    0x881B, 0x100D, 0x881C, 0x100E, 0xBA01, 0x881D, 0xBF80, 0x00ED, 0x881E, 0x050C, 0x0124, 0xB904, 
    0x9027, 0x6918, 0xE308, 0x04B3, 0x902D, 0x6913, 0xBFA0, 0x7598, 0xF704, 0xAE2D, 0x00FF, 0x8B8D, 
    0x6919, 0xE308, 0x0463, 0x691A, 0xE308, 0x0456, 0xB907, 0x8809, 0xBEC6, 0x0453, 0x10A9, 0x90AD, 
    0x7980, 0x047C, 0xB903, 0x8809, 0xBEC6, 0x0460, 0x1889, 0x6C22, 0x90AD, 0x10A9, 0x6E23, 0x6C22, 
    0x90AD, 0x7980, 0x047C, 0x101A, 0xE308, 0x046F, 0xB903, 0x8809, 0xBEC6, 0x046C, 0x10A9, 0x90A0, 
    0x90AD, 0x7980, 0x047C, 0xB901, 0x8809, 0xBEC6, 0x047B, 0x1889, 0x6C22, 0x90A0, 0x90AD, 0x10A9, 
    0x6E23, 0x6C22, 0x90A0, 0x90AD, 0x692D, 0xE308, 0x049C, 0x0124, 0xB703, 0xB902, 0x8818, 0x8B89, 
    0x022C, 0x108A, 0x7C04, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99A0, 
    0x108A, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99AF, 0x7B99, 0x0484, 
    0x0124, 0x060F, 0x101B, 0x2013, 0x901B, 0xBFA0, 0x7FFF, 0xE344, 0x04AC, 0x901B, 0x8B89, 0x7A80, 
    0x051A, 0x6927, 0xBA01, 0x9027, 0x7A80, 0x0523, 0x6927, 0xE308, 0x049E, 0x7980, 0x050F, 0x0624, 
    0x1026, 0x2013, 0x9026, 0xBFA0, 0x7FFF, 0xE304, 0x04C0, 0x8B8D, 0x7A80, 0x051A, 0x7980, 0x04B4, 
    0x9026, 0x1013, 0x3026, 0x901B, 0x8B8D, 0x7A80, 0x051A, 0x7A80, 0x0523, 0x1027, 0xBA01, 0x9027, 
    0xE308, 0x04B4, 0x0124, 0x060F, 0x8B89, 0x691A, 0xE308, 0x04EA, 0x6919, 0xE388, 0x04E0, 0xB903, 
    0x8809, 0xBEC6, 0x04DD, 0x1FA0, 0x2FAE, 0x98A9, 0x7980, 0x050F, 0xB901, 0x8818, 0xB907, 0x8809, 
    0xBEC6, 0x04E7, 0x10EE, 0x90A9, 0x7980, 0x050F, 0x6919, 0xE308, 0x04FE, 0xB903, 0x8809, 0xBE46, 
    0xBEC6, 0x04FA, 0x17A0, 0xBE1E, 0x1FAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0xBE47, 
    0x7980, 0x050F, 0xB901, 0x8809, 0xBEC6, 0x050E, 0x16A0, 0x26A0, 0xBFB7, 0xFF00, 0xBE1E, 0x1EA0, 
    0x2EAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0x850C, 0x860F, 0x6907, 0xE388, 0x0516, 
    0x0D07, 0x8510, 0xBE59, 0x881E, 0xBE4A, 0xEF00, 0x101E, 0x901C, 0x101F, 0x901D, 0x10A0, 0x901E, 
    0x10A0, 0x901F, 0xEF00, 0x101E, 0x301C, 0x9020, 0x731B, 0x5420, 0xBE03, 0x9825, 0x1025, 0x201C, 
    0x9025, 0x7325, 0x5414, 0xBE03, 0x8B8E, 0x9880, 0x692F, 0xE388, 0x0539, 0xBE59, 0xBB07, 0x6180, 
    0x9880, 0x8BA0, 0x101F, 0x301D, 0x9021, 0x731B, 0x5421, 0xBE03, 0x982E, 0x102E, 0x201D, 0x902E, 
    0x732E, 0x5415, 0xBE03, 0x9880, 0x692F, 0xE388, 0x054F, 0xBE59, 0xBB07, 0x6180, 0x9880, 0x8BA0, 
    0x6918, 0xEF08, 0x7325, 0x5416, 0xBE03, 0x98A0, 0x732E, 0x5417, 0xBE03, 0x98A0, 0xEF00, 0x8BA0, 
    0xBEC6, 0x056B, 0xBE59, 0xBB04, 0xAA90, 0xBE04, 0xBE1E, 0x99E0, 0x8BE0, 0x69A0, 0x90D0, 0x69A0, 
    0x90D0, 0x081F, 0xB805, 0x881F, 0x8B90, 0x69A0, 0x90D0, 0x69A0, 0x9090, 0x8BD0, 0x8BD8, 0xBE1F, 
    0xEF00, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 
};

static const struct firmware assp_kernel = {
	.data = (u8 *)assp_kernel_image,
	.size = sizeof assp_kernel_image
};
static const struct firmware assp_minisrc = {
	.data = (u8 *)assp_minisrc_image,
	.size = sizeof assp_minisrc_image
};

#else /* CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL */

#ifdef __LITTLE_ENDIAN
static inline void snd_m3_convert_from_le(const struct firmware *fw) { }
#else
static void snd_m3_convert_from_le(const struct firmware *fw)
{
	int i;
	u16 *data = (u16 *)fw->data;

	for (i = 0; i < fw->size / 2; ++i)
		le16_to_cpus(&data[i]);
}
#endif

#endif /* CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL */


/*
 * initialize ASSP
 */

#define MINISRC_LPF_LEN 10
static const u16 minisrc_lpf[MINISRC_LPF_LEN] = {
	0X0743, 0X1104, 0X0A4C, 0XF88D, 0X242C,
	0X1023, 0X1AA9, 0X0B60, 0XEFDD, 0X186F
};

static void snd_m3_assp_init(struct snd_m3 *chip)
{
	unsigned int i;
	u16 *data;

	/* zero kernel data */
	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA, 
				  KDATA_BASE_ADDR + i, 0);

	/* zero mixer data? */
	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
				  KDATA_BASE_ADDR2 + i, 0);

	/* init dma pointer */
	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  KDATA_CURRENT_DMA,
			  KDATA_DMA_XFER0);

	/* write kernel into code memory.. */
	data = (u16 *)chip->assp_kernel_image->data;
	for (i = 0 ; i * 2 < chip->assp_kernel_image->size; i++) {
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE, 
				  REV_B_CODE_MEMORY_BEGIN + i, data[i]);
	}

	/*
	 * We only have this one client and we know that 0x400
	 * is free in our kernel's mem map, so lets just
	 * drop it there.  It seems that the minisrc doesn't
	 * need vectors, so we won't bother with them..
	 */
	data = (u16 *)chip->assp_minisrc_image->data;
	for (i = 0; i * 2 < chip->assp_minisrc_image->size; i++) {
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE, 
				  0x400 + i, data[i]);
	}

	/*
	 * write the coefficients for the low pass filter?
	 */
	for (i = 0; i < MINISRC_LPF_LEN ; i++) {
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
				  0x400 + MINISRC_COEF_LOC + i,
				  minisrc_lpf[i]);
	}

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
			  0x400 + MINISRC_COEF_LOC + MINISRC_LPF_LEN,
			  0x8000);

	/*
	 * the minisrc is the only thing on
	 * our task list..
	 */
	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA, 
			  KDATA_TASK0,
			  0x400);

	/*
	 * init the mixer number..
	 */

	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  KDATA_MIXER_TASK_NUMBER,0);

	/*
	 * EXTREME KERNEL MASTER VOLUME
	 */
	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  KDATA_DAC_LEFT_VOLUME, ARB_VOLUME);
	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
			  KDATA_DAC_RIGHT_VOLUME, ARB_VOLUME);

	chip->mixer_list.curlen = 0;
	chip->mixer_list.mem_addr = KDATA_MIXER_XFER0;
	chip->mixer_list.max = MAX_VIRTUAL_MIXER_CHANNELS;
	chip->adc1_list.curlen = 0;
	chip->adc1_list.mem_addr = KDATA_ADC1_XFER0;
	chip->adc1_list.max = MAX_VIRTUAL_ADC1_CHANNELS;
	chip->dma_list.curlen = 0;
	chip->dma_list.mem_addr = KDATA_DMA_XFER0;
	chip->dma_list.max = MAX_VIRTUAL_DMA_CHANNELS;
	chip->msrc_list.curlen = 0;
	chip->msrc_list.mem_addr = KDATA_INSTANCE0_MINISRC;
	chip->msrc_list.max = MAX_INSTANCE_MINISRC;
}


static int __devinit snd_m3_assp_client_init(struct snd_m3 *chip, struct m3_dma *s, int index)
{
	int data_bytes = 2 * ( MINISRC_TMP_BUFFER_SIZE / 2 + 
			       MINISRC_IN_BUFFER_SIZE / 2 +
			       1 + MINISRC_OUT_BUFFER_SIZE / 2 + 1 );
	int address, i;

	/*
	 * the revb memory map has 0x1100 through 0x1c00
	 * free.  
	 */

	/*
	 * align instance address to 256 bytes so that its
	 * shifted list address is aligned.
	 * list address = (mem address >> 1) >> 7;
	 */
	data_bytes = ALIGN(data_bytes, 256);
	address = 0x1100 + ((data_bytes/2) * index);

	if ((address + (data_bytes/2)) >= 0x1c00) {
		snd_printk(KERN_ERR "no memory for %d bytes at ind %d (addr 0x%x)\n",
			   data_bytes, index, address);
		return -ENOMEM;
	}

	s->number = index;
	s->inst.code = 0x400;
	s->inst.data = address;

	for (i = data_bytes / 2; i > 0; address++, i--) {
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
				  address, 0);
	}

	return 0;
}


/* 
 * this works for the reference board, have to find
 * out about others
 *
 * this needs more magic for 4 speaker, but..
 */
static void
snd_m3_amp_enable(struct snd_m3 *chip, int enable)
{
	int io = chip->iobase;
	u16 gpo, polarity;

	if (! chip->external_amp)
		return;

	polarity = enable ? 0 : 1;
	polarity = polarity << chip->amp_gpio;
	gpo = 1 << chip->amp_gpio;

	outw(~gpo, io + GPIO_MASK);

	outw(inw(io + GPIO_DIRECTION) | gpo,
	     io + GPIO_DIRECTION);

	outw((GPO_SECONDARY_AC97 | GPO_PRIMARY_AC97 | polarity),
	     io + GPIO_DATA);

	outw(0xffff, io + GPIO_MASK);
}

static int
snd_m3_chip_init(struct snd_m3 *chip)
{
	struct pci_dev *pcidev = chip->pci;
	unsigned long io = chip->iobase;
	u32 n;
	u16 w;
	u8 t; /* makes as much sense as 'n', no? */

	pci_read_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, &w);
	w &= ~(SOUND_BLASTER_ENABLE|FM_SYNTHESIS_ENABLE|
	       MPU401_IO_ENABLE|MPU401_IRQ_ENABLE|ALIAS_10BIT_IO|
	       DISABLE_LEGACY);
	pci_write_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, w);

	if (chip->is_omnibook) {
		/*
		 * Volume buttons on some HP OmniBook laptops don't work
		 * correctly. This makes them work for the most part.
		 *
		 * Volume up and down buttons on the laptop side work.
		 * Fn+cursor_up (volme up) works.
		 * Fn+cursor_down (volume down) doesn't work.
		 * Fn+F7 (mute) works acts as volume up.
		 */
		outw(~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_MASK);
		outw(inw(io + GPIO_DIRECTION) & ~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DIRECTION);
		outw((GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DATA);
		outw(0xffff, io + GPIO_MASK);
	}
	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
	n &= ~(HV_CTRL_ENABLE | REDUCED_DEBOUNCE | HV_BUTTON_FROM_GD);
	n |= chip->hv_config;
	/* For some reason we must always use reduced debounce. */
	n |= REDUCED_DEBOUNCE;
	n |= PM_CTRL_ENABLE | CLK_DIV_BY_49 | USE_PCI_TIMING;
	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);

	outb(RESET_ASSP, chip->iobase + ASSP_CONTROL_B);
	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
	n &= ~INT_CLK_SELECT;
	if (!chip->allegro_flag) {
		n &= ~INT_CLK_MULT_ENABLE; 
		n |= INT_CLK_SRC_NOT_PCI;
	}
	n &=  ~( CLK_MULT_MODE_SELECT | CLK_MULT_MODE_SELECT_2 );
	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);

	if (chip->allegro_flag) {
		pci_read_config_dword(pcidev, PCI_USER_CONFIG, &n);
		n |= IN_CLK_12MHZ_SELECT;
		pci_write_config_dword(pcidev, PCI_USER_CONFIG, n);
	}

	t = inb(chip->iobase + ASSP_CONTROL_A);
	t &= ~( DSP_CLK_36MHZ_SELECT  | ASSP_CLK_49MHZ_SELECT);
	t |= ASSP_CLK_49MHZ_SELECT;
	t |= ASSP_0_WS_ENABLE; 
	outb(t, chip->iobase + ASSP_CONTROL_A);

	snd_m3_assp_init(chip); /* download DSP code before starting ASSP below */
	outb(RUN_ASSP, chip->iobase + ASSP_CONTROL_B); 

	outb(0x00, io + HARDWARE_VOL_CTRL);
	outb(0x88, io + SHADOW_MIX_REG_VOICE);
	outb(0x88, io + HW_VOL_COUNTER_VOICE);
	outb(0x88, io + SHADOW_MIX_REG_MASTER);
	outb(0x88, io + HW_VOL_COUNTER_MASTER);

	return 0;
} 

static void
snd_m3_enable_ints(struct snd_m3 *chip)
{
	unsigned long io = chip->iobase;
	unsigned short val;

	/* TODO: MPU401 not supported yet */
	val = ASSP_INT_ENABLE /*| MPU401_INT_ENABLE*/;
	if (chip->hv_config & HV_CTRL_ENABLE)
		val |= HV_INT_ENABLE;
	outw(val, io + HOST_INT_CTRL);
	outb(inb(io + ASSP_CONTROL_C) | ASSP_HOST_INT_ENABLE,
	     io + ASSP_CONTROL_C);
}


/*
 */

static int snd_m3_free(struct snd_m3 *chip)
{
	struct m3_dma *s;
	int i;

	if (chip->substreams) {
		spin_lock_irq(&chip->reg_lock);
		for (i = 0; i < chip->num_substreams; i++) {
			s = &chip->substreams[i];
			/* check surviving pcms; this should not happen though.. */
			if (s->substream && s->running)
				snd_m3_pcm_stop(chip, s, s->substream);
		}
		spin_unlock_irq(&chip->reg_lock);
		kfree(chip->substreams);
	}
	if (chip->iobase) {
		outw(0, chip->iobase + HOST_INT_CTRL); /* disable ints */
	}

#ifdef CONFIG_PM
	vfree(chip->suspend_mem);
#endif

	if (chip->irq >= 0) {
		synchronize_irq(chip->irq);
		free_irq(chip->irq, chip);
	}

	if (chip->iobase)
		pci_release_regions(chip->pci);

#ifndef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
	release_firmware(chip->assp_kernel_image);
	release_firmware(chip->assp_minisrc_image);
#endif

	pci_disable_device(chip->pci);
	kfree(chip);
	return 0;
}


/*
 * APM support
 */
#ifdef CONFIG_PM
static int m3_suspend(struct pci_dev *pci, pm_message_t state)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct snd_m3 *chip = card->private_data;
	int i, index;

	if (chip->suspend_mem == NULL)
		return 0;

	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
	snd_pcm_suspend_all(chip->pcm);
	snd_ac97_suspend(chip->ac97);

	msleep(10); /* give the assp a chance to idle.. */

	snd_m3_assp_halt(chip);

	/* save dsp image */
	index = 0;
	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
		chip->suspend_mem[index++] = 
			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_CODE, i);
	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
		chip->suspend_mem[index++] = 
			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA, i);

	pci_disable_device(pci);
	pci_save_state(pci);
	pci_set_power_state(pci, pci_choose_state(pci, state));
	return 0;
}

static int m3_resume(struct pci_dev *pci)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct snd_m3 *chip = card->private_data;
	int i, index;

	if (chip->suspend_mem == NULL)
		return 0;

	pci_set_power_state(pci, PCI_D0);
	pci_restore_state(pci);
	if (pci_enable_device(pci) < 0) {
		printk(KERN_ERR "maestor3: pci_enable_device failed, "
		       "disabling device\n");
		snd_card_disconnect(card);
		return -EIO;
	}
	pci_set_master(pci);

	/* first lets just bring everything back. .*/
	snd_m3_outw(chip, 0, 0x54);
	snd_m3_outw(chip, 0, 0x56);

	snd_m3_chip_init(chip);
	snd_m3_assp_halt(chip);
	snd_m3_ac97_reset(chip);

	/* restore dsp image */
	index = 0;
	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE, i, 
				  chip->suspend_mem[index++]);
	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA, i, 
				  chip->suspend_mem[index++]);

	/* tell the dma engine to restart itself */
	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA, 
			  KDATA_DMA_ACTIVE, 0);

        /* restore ac97 registers */
	snd_ac97_resume(chip->ac97);

	snd_m3_assp_continue(chip);
	snd_m3_enable_ints(chip);
	snd_m3_amp_enable(chip, 1);

	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
	return 0;
}
#endif /* CONFIG_PM */


/*
 */

static int snd_m3_dev_free(struct snd_device *device)
{
	struct snd_m3 *chip = device->device_data;
	return snd_m3_free(chip);
}

static int __devinit
snd_m3_create(struct snd_card *card, struct pci_dev *pci,
	      int enable_amp,
	      int amp_gpio,
	      struct snd_m3 **chip_ret)
{
	struct snd_m3 *chip;
	int i, err;
	const struct snd_pci_quirk *quirk;
	static struct snd_device_ops ops = {
		.dev_free =	snd_m3_dev_free,
	};

	*chip_ret = NULL;

	if (pci_enable_device(pci))
		return -EIO;

	/* check, if we can restrict PCI DMA transfers to 28 bits */
	if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 ||
	    pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) {
		snd_printk(KERN_ERR "architecture does not support 28bit PCI busmaster DMA\n");
		pci_disable_device(pci);
		return -ENXIO;
	}

	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
	if (chip == NULL) {
		pci_disable_device(pci);
		return -ENOMEM;
	}

	spin_lock_init(&chip->reg_lock);
	spin_lock_init(&chip->ac97_lock);

	switch (pci->device) {
	case PCI_DEVICE_ID_ESS_ALLEGRO:
	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
	case PCI_DEVICE_ID_ESS_CANYON3D_2:
		chip->allegro_flag = 1;
		break;
	}

	chip->card = card;
	chip->pci = pci;
	chip->irq = -1;

	chip->external_amp = enable_amp;
	if (amp_gpio >= 0 && amp_gpio <= 0x0f)
		chip->amp_gpio = amp_gpio;
	else {
		quirk = snd_pci_quirk_lookup(pci, m3_amp_quirk_list);
		if (quirk) {
			snd_printdd(KERN_INFO "maestro3: set amp-gpio "
				    "for '%s'\n", quirk->name);
			chip->amp_gpio = quirk->value;
		} else if (chip->allegro_flag)
			chip->amp_gpio = GPO_EXT_AMP_ALLEGRO;
		else /* presumably this is for all 'maestro3's.. */
			chip->amp_gpio = GPO_EXT_AMP_M3;
	}

	quirk = snd_pci_quirk_lookup(pci, m3_irda_quirk_list);
	if (quirk) {
		snd_printdd(KERN_INFO "maestro3: enabled irda workaround "
			    "for '%s'\n", quirk->name);
		chip->irda_workaround = 1;
	}
	quirk = snd_pci_quirk_lookup(pci, m3_hv_quirk_list);
	if (quirk)
		chip->hv_config = quirk->value;
	if (snd_pci_quirk_lookup(pci, m3_omnibook_quirk_list))
		chip->is_omnibook = 1;

	chip->num_substreams = NR_DSPS;
	chip->substreams = kcalloc(chip->num_substreams, sizeof(struct m3_dma),
				   GFP_KERNEL);
	if (chip->substreams == NULL) {
		kfree(chip);
		pci_disable_device(pci);
		return -ENOMEM;
	}

#ifdef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
	chip->assp_kernel_image = &assp_kernel;
#else
	err = request_firmware(&chip->assp_kernel_image,
			       "ess/maestro3_assp_kernel.fw", &pci->dev);
	if (err < 0) {
		snd_m3_free(chip);
		return err;
	} else
		snd_m3_convert_from_le(chip->assp_kernel_image);
#endif

#ifdef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
	chip->assp_minisrc_image = &assp_minisrc;
#else
	err = request_firmware(&chip->assp_minisrc_image,
			       "ess/maestro3_assp_minisrc.fw", &pci->dev);
	if (err < 0) {
		snd_m3_free(chip);
		return err;
	} else
		snd_m3_convert_from_le(chip->assp_minisrc_image);
#endif

	if ((err = pci_request_regions(pci, card->driver)) < 0) {
		snd_m3_free(chip);
		return err;
	}
	chip->iobase = pci_resource_start(pci, 0);
	
	/* just to be sure */
	pci_set_master(pci);

	snd_m3_chip_init(chip);
	snd_m3_assp_halt(chip);

	snd_m3_ac97_reset(chip);

	snd_m3_amp_enable(chip, 1);

	tasklet_init(&chip->hwvol_tq, snd_m3_update_hw_volume, (unsigned long)chip);

	if (request_irq(pci->irq, snd_m3_interrupt, IRQF_SHARED,
			card->driver, chip)) {
		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
		snd_m3_free(chip);
		return -ENOMEM;
	}
	chip->irq = pci->irq;

#ifdef CONFIG_PM
	chip->suspend_mem = vmalloc(sizeof(u16) * (REV_B_CODE_MEMORY_LENGTH + REV_B_DATA_MEMORY_LENGTH));
	if (chip->suspend_mem == NULL)
		snd_printk(KERN_WARNING "can't allocate apm buffer\n");
#endif

	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
		snd_m3_free(chip);
		return err;
	}

	if ((err = snd_m3_mixer(chip)) < 0)
		return err;

	for (i = 0; i < chip->num_substreams; i++) {
		struct m3_dma *s = &chip->substreams[i];
		if ((err = snd_m3_assp_client_init(chip, s, i)) < 0)
			return err;
	}

	if ((err = snd_m3_pcm(chip, 0)) < 0)
		return err;
    
	snd_m3_enable_ints(chip);
	snd_m3_assp_continue(chip);

	snd_card_set_dev(card, &pci->dev);

	*chip_ret = chip;

	return 0; 
}

/*
 */
static int __devinit
snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
{
	static int dev;
	struct snd_card *card;
	struct snd_m3 *chip;
	int err;

	/* don't pick up modems */
	if (((pci->class >> 8) & 0xffff) != PCI_CLASS_MULTIMEDIA_AUDIO)
		return -ENODEV;

	if (dev >= SNDRV_CARDS)
		return -ENODEV;
	if (!enable[dev]) {
		dev++;
		return -ENOENT;
	}

	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
	if (card == NULL)
		return -ENOMEM;

	switch (pci->device) {
	case PCI_DEVICE_ID_ESS_ALLEGRO:
	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
		strcpy(card->driver, "Allegro");
		break;
	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
	case PCI_DEVICE_ID_ESS_CANYON3D_2:
		strcpy(card->driver, "Canyon3D-2");
		break;
	default:
		strcpy(card->driver, "Maestro3");
		break;
	}

	if ((err = snd_m3_create(card, pci,
				 external_amp[dev],
				 amp_gpio[dev],
				 &chip)) < 0) {
		snd_card_free(card);
		return err;
	}
	card->private_data = chip;

	sprintf(card->shortname, "ESS %s PCI", card->driver);
	sprintf(card->longname, "%s at 0x%lx, irq %d",
		card->shortname, chip->iobase, chip->irq);

	if ((err = snd_card_register(card)) < 0) {
		snd_card_free(card);
		return err;
	}

#if 0 /* TODO: not supported yet */
	/* TODO enable MIDI IRQ and I/O */
	err = snd_mpu401_uart_new(chip->card, 0, MPU401_HW_MPU401,
				  chip->iobase + MPU401_DATA_PORT,
				  MPU401_INFO_INTEGRATED,
				  chip->irq, 0, &chip->rmidi);
	if (err < 0)
		printk(KERN_WARNING "maestro3: no MIDI support.\n");
#endif

	pci_set_drvdata(pci, card);
	dev++;
	return 0;
}

static void __devexit snd_m3_remove(struct pci_dev *pci)
{
	snd_card_free(pci_get_drvdata(pci));
	pci_set_drvdata(pci, NULL);
}

static struct pci_driver driver = {
	.name = "Maestro3",
	.id_table = snd_m3_ids,
	.probe = snd_m3_probe,
	.remove = __devexit_p(snd_m3_remove),
#ifdef CONFIG_PM
	.suspend = m3_suspend,
	.resume = m3_resume,
#endif
};
	
static int __init alsa_card_m3_init(void)
{
	return pci_register_driver(&driver);
}

static void __exit alsa_card_m3_exit(void)
{
	pci_unregister_driver(&driver);
}

module_init(alsa_card_m3_init)
module_exit(alsa_card_m3_exit)