aboutsummaryrefslogblamecommitdiffstats
path: root/sound/oss/opl3sa2.c
blob: cd41d0e4706a90721ee09982b1d50a3f66eeb819 (plain) (tree)
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
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834







































































                                                                                
                            



































































                                                                                      
                       



























































                                                                                                                                          
                                                                   












































































































































                                                                                                                                    
                       











                                                                                 
                             



























































































































































































































































































































































































































































































                                                                                                      

                       









































































                                                                                  
                             















































































































                                                                                               
                       



                                                                                               
                             























































                                                                                       
                       












































                                                                         
/*
 * sound/opl3sa2.c
 *
 * A low level driver for Yamaha OPL3-SA2 and SA3 cards.
 * NOTE: All traces of the name OPL3-SAx have now (December 2000) been
 *       removed from the driver code, as an email exchange with Yamaha
 *       provided the information that the YMF-719 is indeed just a
 *       re-badged 715.
 *
 * Copyright 1998-2001 Scott Murray <scott@spiteful.org>
 *
 * Originally based on the CS4232 driver (in cs4232.c) by Hannu Savolainen
 * and others.  Now incorporates code/ideas from pss.c, also by Hannu
 * Savolainen.  Both of those files are distributed with the following
 * license:
 *
 * "Copyright (C) by Hannu Savolainen 1993-1997
 *
 *  OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
 *  Version 2 (June 1991). See the "COPYING" file distributed with this software
 *  for more info."
 *
 * As such, in accordance with the above license, this file, opl3sa2.c, is
 * distributed under the GNU GENERAL PUBLIC LICENSE (GPL) Version 2 (June 1991).
 * See the "COPYING" file distributed with this software for more information.
 *
 * Change History
 * --------------
 * Scott Murray            Original driver (Jun 14, 1998)
 * Paul J.Y. Lahaie        Changed probing / attach code order
 * Scott Murray            Added mixer support (Dec 03, 1998)
 * Scott Murray            Changed detection code to be more forgiving,
 *                         added force option as last resort,
 *                         fixed ioctl return values. (Dec 30, 1998)
 * Scott Murray            Simpler detection code should work all the time now
 *                         (with thanks to Ben Hutchings for the heuristic),
 *                         removed now unnecessary force option. (Jan 5, 1999)
 * Christoph Hellwig	   Adapted to module_init/module_exit (Mar 4, 2000)
 * Scott Murray            Reworked SA2 versus SA3 mixer code, updated chipset
 *                         version detection code (again!). (Dec 5, 2000)
 * Scott Murray            Adjusted master volume mixer scaling. (Dec 6, 2000)
 * Scott Murray            Based on a patch by Joel Yliluoma (aka Bisqwit),
 *                         integrated wide mixer and adjusted mic, bass, treble
 *                         scaling. (Dec 6, 2000)
 * Scott Murray            Based on a patch by Peter Englmaier, integrated
 *                         ymode and loopback options. (Dec 6, 2000)
 * Scott Murray            Inspired by a patch by Peter Englmaier, and based on
 *                         what ALSA does, added initialization code for the
 *                         default DMA and IRQ settings. (Dec 6, 2000)
 * Scott Murray            Added some more checks to the card detection code,
 *                         based on what ALSA does. (Dec 12, 2000)
 * Scott Murray            Inspired by similar patches from John Fremlin,
 *                         Jim Radford, Mike Rolig, and Ingmar Steen, added 2.4
 *                         ISA PnP API support, mainly based on bits from
 *                         sb_card.c and awe_wave.c. (Dec 12, 2000)
 * Scott Murray            Some small cleanups to the init code output.
 *                         (Jan 7, 2001)
 * Zwane Mwaikambo	   Added PM support. (Dec 4 2001)
 *
 * Adam Belay              Converted driver to new PnP Layer (Oct 12, 2002)
 * Zwane Mwaikambo	   Code, data structure cleanups. (Feb 15 2002)
 * Zwane Mwaikambo	   Free resources during auxiliary device probe
 * 			   failures (Apr 29 2002)
 *   
 */

#include <linux/config.h>
#include <linux/pnp.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/pm_legacy.h>
#include "sound_config.h"

#include "ad1848.h"
#include "mpu401.h"

#define OPL3SA2_MODULE_NAME	"opl3sa2"
#define PFX			OPL3SA2_MODULE_NAME ": "

/* Useful control port indexes: */
#define OPL3SA2_PM	     0x01
#define OPL3SA2_SYS_CTRL     0x02
#define OPL3SA2_IRQ_CONFIG   0x03
#define OPL3SA2_DMA_CONFIG   0x06
#define OPL3SA2_MASTER_LEFT  0x07
#define OPL3SA2_MASTER_RIGHT 0x08
#define OPL3SA2_MIC          0x09
#define OPL3SA2_MISC         0x0A

#define OPL3SA3_WIDE         0x14
#define OPL3SA3_BASS         0x15
#define OPL3SA3_TREBLE       0x16

/* Useful constants: */
#define DEFAULT_VOLUME 50
#define DEFAULT_MIC    50
#define DEFAULT_TIMBRE 0

/* Power saving modes */
#define OPL3SA2_PM_MODE0	0x00
#define OPL3SA2_PM_MODE1	0x04	/* PSV */
#define OPL3SA2_PM_MODE2	0x05	/* PSV | PDX */
#define OPL3SA2_PM_MODE3	0x27	/* ADOWN | PSV | PDN | PDX */


/* For checking against what the card returns: */
#define VERSION_UNKNOWN 0
#define VERSION_YMF711  1
#define VERSION_YMF715  2
#define VERSION_YMF715B 3
#define VERSION_YMF715E 4
/* also assuming that anything > 4 but <= 7 is a 715E */

/* Chipset type constants for use below */
#define CHIPSET_UNKNOWN -1
#define CHIPSET_OPL3SA2 0
#define CHIPSET_OPL3SA3 1
static const char *CHIPSET_TABLE[] = {"OPL3-SA2", "OPL3-SA3"};

#ifdef CONFIG_PNP
#define OPL3SA2_CARDS_MAX 4
#else
#define OPL3SA2_CARDS_MAX 1
#endif

/* This should be pretty obvious */
static int opl3sa2_cards_num;

typedef struct {
	/* device resources */
	unsigned short cfg_port;
	struct address_info cfg;
	struct address_info cfg_mss;
	struct address_info cfg_mpu;
#ifdef CONFIG_PNP
	/* PnP Stuff */
	struct pnp_dev* pdev;
	int activated;			/* Whether said devices have been activated */
#endif
#ifdef CONFIG_PM_LEGACY
	unsigned int	in_suspend;
	struct pm_dev	*pmdev;
#endif
	unsigned int	card;
	int		chipset;	/* What's my version(s)? */
	char		*chipset_name;

	/* mixer data */
	int		mixer;
	unsigned int	volume_l;
	unsigned int	volume_r;
	unsigned int	mic;
	unsigned int	bass_l;
	unsigned int	bass_r;
	unsigned int	treble_l;
	unsigned int	treble_r;
	unsigned int	wide_l;
	unsigned int	wide_r;
} opl3sa2_state_t;
static opl3sa2_state_t opl3sa2_state[OPL3SA2_CARDS_MAX];

	

/* Our parameters */
static int __initdata io	= -1;
static int __initdata mss_io	= -1;
static int __initdata mpu_io	= -1;
static int __initdata irq	= -1;
static int __initdata dma	= -1;
static int __initdata dma2	= -1;
static int __initdata ymode	= -1;
static int __initdata loopback	= -1;

#ifdef CONFIG_PNP
/* PnP specific parameters */
static int __initdata isapnp = 1;
static int __initdata multiple = 1;

/* Whether said devices have been activated */
static int opl3sa2_activated[OPL3SA2_CARDS_MAX];
#else
static int __initdata isapnp; /* = 0 */
static int __initdata multiple; /* = 0 */
#endif

MODULE_DESCRIPTION("Module for OPL3-SA2 and SA3 sound cards (uses AD1848 MSS driver).");
MODULE_AUTHOR("Scott Murray <scott@spiteful.org>");
MODULE_LICENSE("GPL");


module_param(io, int, 0);
MODULE_PARM_DESC(io, "Set I/O base of OPL3-SA2 or SA3 card (usually 0x370.  Address must be even and must be from 0x100 to 0xFFE)");

module_param(mss_io, int, 0);
MODULE_PARM_DESC(mss_io, "Set MSS (audio) I/O base (0x530, 0xE80, or other. Address must end in 0 or 4 and must be from 0x530 to 0xF48)");

module_param(mpu_io, int, 0);
MODULE_PARM_DESC(mpu_io, "Set MIDI I/O base (0x330 or other. Address must be even and must be from 0x300 to 0x334)");

module_param(irq, int, 0);
MODULE_PARM_DESC(irq, "Set MSS (audio) IRQ (5, 7, 9, 10, 11, 12)");

module_param(dma, int, 0);
MODULE_PARM_DESC(dma, "Set MSS (audio) first DMA channel (0, 1, 3)");

module_param(dma2, int, 0);
MODULE_PARM_DESC(dma2, "Set MSS (audio) second DMA channel (0, 1, 3)");

module_param(ymode, int, 0);
MODULE_PARM_DESC(ymode, "Set Yamaha 3D enhancement mode (0 = Desktop/Normal, 1 = Notebook PC (1), 2 = Notebook PC (2), 3 = Hi-Fi)");

module_param(loopback, int, 0);
MODULE_PARM_DESC(loopback, "Set A/D input source. Useful for echo cancellation (0 = Mic Rch (default), 1 = Mono output loopback)");

#ifdef CONFIG_PNP
module_param(isapnp, bool, 0);
MODULE_PARM_DESC(isapnp, "When set to 0, ISA PnP support will be disabled");

module_param(multiple, bool, 0);
MODULE_PARM_DESC(multiple, "When set to 0, will not search for multiple cards");
#endif


/*
 * Standard read and write functions
*/

static inline void opl3sa2_write(unsigned short port,
				 unsigned char  index,
				 unsigned char  data)
{
	outb_p(index, port);
	outb(data, port + 1);
}


static inline void opl3sa2_read(unsigned short port,
				unsigned char  index,
				unsigned char* data)
{
	outb_p(index, port);
	*data = inb(port + 1);
}


/*
 * All of the mixer functions...
 */

static void opl3sa2_set_volume(opl3sa2_state_t* devc, int left, int right)
{
	static unsigned char scale[101] = {
		0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0e, 0x0e, 0x0e,
		0x0e, 0x0e, 0x0e, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0c,
		0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0b, 0x0b, 0x0b, 0x0b,
		0x0b, 0x0b, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x09, 0x09,
		0x09, 0x09, 0x09, 0x09, 0x09, 0x08, 0x08, 0x08, 0x08, 0x08,
		0x08, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x06, 0x06, 0x06,
		0x06, 0x06, 0x06, 0x06, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
		0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03, 0x03, 0x03,
		0x03, 0x03, 0x03, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x01,
		0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00
	};
	unsigned char vol;

	vol = scale[left];

	/* If level is zero, turn on mute */
	if(!left)
		vol |= 0x80;

	opl3sa2_write(devc->cfg_port, OPL3SA2_MASTER_LEFT, vol);

	vol = scale[right];

	/* If level is zero, turn on mute */
	if(!right)
		vol |= 0x80;

	opl3sa2_write(devc->cfg_port, OPL3SA2_MASTER_RIGHT, vol);
}


static void opl3sa2_set_mic(opl3sa2_state_t* devc, int level)
{
	unsigned char vol = 0x1F;

	if((level >= 0) && (level <= 100))
		vol = 0x1F - (unsigned char) (32 * level / 101);

	/* If level is zero, turn on mute */
	if(!level)
		vol |= 0x80;

	opl3sa2_write(devc->cfg_port, OPL3SA2_MIC, vol);
}


static void opl3sa3_set_bass(opl3sa2_state_t* devc, int left, int right)
{
	unsigned char bass;

	bass = left ? ((unsigned char) (8 * left / 101)) : 0; 
	bass |= (right ? ((unsigned char) (8 * right / 101)) : 0) << 4;

	opl3sa2_write(devc->cfg_port, OPL3SA3_BASS, bass);
}


static void opl3sa3_set_treble(opl3sa2_state_t* devc, int left, int right)
{	
	unsigned char treble;

	treble = left ? ((unsigned char) (8 * left / 101)) : 0; 
	treble |= (right ? ((unsigned char) (8 * right / 101)) : 0) << 4;

	opl3sa2_write(devc->cfg_port, OPL3SA3_TREBLE, treble);
}




static void opl3sa2_mixer_reset(opl3sa2_state_t* devc)
{
	if (devc) {
		opl3sa2_set_volume(devc, DEFAULT_VOLUME, DEFAULT_VOLUME);
		devc->volume_l = devc->volume_r = DEFAULT_VOLUME;

		opl3sa2_set_mic(devc, DEFAULT_MIC);
		devc->mic = DEFAULT_MIC;

		if (devc->chipset == CHIPSET_OPL3SA3) {
			opl3sa3_set_bass(devc, DEFAULT_TIMBRE, DEFAULT_TIMBRE);
			devc->bass_l = devc->bass_r = DEFAULT_TIMBRE;
			opl3sa3_set_treble(devc, DEFAULT_TIMBRE, DEFAULT_TIMBRE);
			devc->treble_l = devc->treble_r = DEFAULT_TIMBRE;
		}
	}
}

/* Currently only used for power management */
#ifdef CONFIG_PM_LEGACY
static void opl3sa2_mixer_restore(opl3sa2_state_t* devc)
{
	if (devc) {
		opl3sa2_set_volume(devc, devc->volume_l, devc->volume_r);
		opl3sa2_set_mic(devc, devc->mic);

		if (devc->chipset == CHIPSET_OPL3SA3) {
			opl3sa3_set_bass(devc, devc->bass_l, devc->bass_r);
			opl3sa3_set_treble(devc, devc->treble_l, devc->treble_r);
		}
	}
}
#endif /* CONFIG_PM_LEGACY */

static inline void arg_to_vol_mono(unsigned int vol, int* value)
{
	int left;
	
	left = vol & 0x00ff;
	if (left > 100)
		left = 100;
	*value = left;
}


static inline void arg_to_vol_stereo(unsigned int vol, int* aleft, int* aright)
{
	arg_to_vol_mono(vol, aleft);
	arg_to_vol_mono(vol >> 8, aright);
}


static inline int ret_vol_mono(int vol)
{
	return ((vol << 8) | vol);
}


static inline int ret_vol_stereo(int left, int right)
{
	return ((right << 8) | left);
}


static int opl3sa2_mixer_ioctl(int dev, unsigned int cmd, void __user *arg)
{
	int retval, value, cmdf = cmd & 0xff;
	int __user *p = (int __user *)arg;

	opl3sa2_state_t* devc = &opl3sa2_state[dev];
	
	switch (cmdf) {
		case SOUND_MIXER_VOLUME:
		case SOUND_MIXER_MIC:
		case SOUND_MIXER_DEVMASK:
		case SOUND_MIXER_STEREODEVS: 
		case SOUND_MIXER_RECMASK:
		case SOUND_MIXER_RECSRC:
		case SOUND_MIXER_CAPS: 
			break;

		default:
			return -EINVAL;
	}
	
	if (((cmd >> 8) & 0xff) != 'M')
		return -EINVAL;
		
	retval = 0;
	if (_SIOC_DIR (cmd) & _SIOC_WRITE) {
		switch (cmdf) {
			case SOUND_MIXER_VOLUME:
				retval = get_user(value, (unsigned __user *) arg);
				if (retval)
					break;
				arg_to_vol_stereo(value, &devc->volume_l, &devc->volume_r);
				opl3sa2_set_volume(devc, devc->volume_l, devc->volume_r);
				value = ret_vol_stereo(devc->volume_l, devc->volume_r);
				retval = put_user(value, p);
				break;
		  
			case SOUND_MIXER_MIC:
				retval = get_user(value, (unsigned __user *) arg);
				if (retval)
					break;
				arg_to_vol_mono(value, &devc->mic);
				opl3sa2_set_mic(devc, devc->mic);
				value = ret_vol_mono(devc->mic);
				retval = put_user(value, p);
				break;

			default:
				retval = -EINVAL;
		}
	}
	else {
		/*
		 * Return parameters
		 */
		switch (cmdf) {
			case SOUND_MIXER_DEVMASK:
				retval = put_user(SOUND_MASK_VOLUME | SOUND_MASK_MIC, p);
				break;
		  
			case SOUND_MIXER_STEREODEVS:
				retval = put_user(SOUND_MASK_VOLUME, p);
				break;
		  
			case SOUND_MIXER_RECMASK:
				/* No recording devices */
				retval = put_user(0, p);
				break;

			case SOUND_MIXER_CAPS:
				retval = put_user(SOUND_CAP_EXCL_INPUT, p);
				break;

			case SOUND_MIXER_RECSRC:
				/* No recording source */
				retval = put_user(0, p);
				break;

			case SOUND_MIXER_VOLUME:
				value = ret_vol_stereo(devc->volume_l, devc->volume_r);
				retval = put_user(value, p);
				break;
			  
			case SOUND_MIXER_MIC:
				value = ret_vol_mono(devc->mic);
				put_user(value, p);
				break;

			default:
				retval = -EINVAL;
		}
	}
	return retval;
}
/* opl3sa2_mixer_ioctl end */


static int opl3sa3_mixer_ioctl(int dev, unsigned int cmd, void __user * arg)
{
	int value, retval, cmdf = cmd & 0xff;

	opl3sa2_state_t* devc = &opl3sa2_state[dev];

	switch (cmdf) {
	case SOUND_MIXER_BASS:
		value = ret_vol_stereo(devc->bass_l, devc->bass_r);
		retval = put_user(value, (int __user *) arg);
		break;
		
	case SOUND_MIXER_TREBLE:
		value = ret_vol_stereo(devc->treble_l, devc->treble_r);
		retval = put_user(value, (int __user *) arg);
		break;

	case SOUND_MIXER_DIGITAL1:
		value = ret_vol_stereo(devc->wide_l, devc->wide_r);
		retval = put_user(value, (int __user *) arg);
		break;

	default:
		retval = -EINVAL;
	}
	return retval;
}
/* opl3sa3_mixer_ioctl end */


static struct mixer_operations opl3sa2_mixer_operations =
{
	.owner	= THIS_MODULE,
	.id	= "OPL3-SA2",
	.name	= "Yamaha OPL3-SA2",
	.ioctl	= opl3sa2_mixer_ioctl
};

static struct mixer_operations opl3sa3_mixer_operations =
{
	.owner	= THIS_MODULE,
	.id	= "OPL3-SA3",
	.name	= "Yamaha OPL3-SA3",
	.ioctl	= opl3sa3_mixer_ioctl
};

/* End of mixer-related stuff */


/*
 * Component probe, attach, unload functions
 */

static inline void __exit unload_opl3sa2_mpu(struct address_info *hw_config)
{
	unload_mpu401(hw_config);
}


static void __init attach_opl3sa2_mss(struct address_info* hw_config, struct resource *ports)
{
	int initial_mixers;

	initial_mixers = num_mixers;
	attach_ms_sound(hw_config, ports, THIS_MODULE);	/* Slot 0 */
	if (hw_config->slots[0] != -1) {
		/* Did the MSS driver install? */
		if(num_mixers == (initial_mixers + 1)) {
			/* The MSS mixer is installed, reroute mixers appropiately */
			AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_CD);
			AD1848_REROUTE(SOUND_MIXER_LINE2, SOUND_MIXER_SYNTH);
			AD1848_REROUTE(SOUND_MIXER_LINE3, SOUND_MIXER_LINE);
		}
		else {
			printk(KERN_ERR PFX "MSS mixer not installed?\n");
		}
	}
}


static inline void __exit unload_opl3sa2_mss(struct address_info* hw_config)
{
	unload_ms_sound(hw_config);
}


static int __init probe_opl3sa2(struct address_info* hw_config, int card)
{
	unsigned char misc;
	unsigned char tmp;
	unsigned char version;

	/*
	 * Try and allocate our I/O port range.
	 */
	if (!request_region(hw_config->io_base, 2, OPL3SA2_MODULE_NAME)) {
		printk(KERN_ERR PFX "Control I/O port %#x not free\n",
		       hw_config->io_base);
		goto out_nodev;
	}

	/*
	 * Check if writing to the read-only version bits of the miscellaneous
	 * register succeeds or not (it should not).
	 */
	opl3sa2_read(hw_config->io_base, OPL3SA2_MISC, &misc);
	opl3sa2_write(hw_config->io_base, OPL3SA2_MISC, misc ^ 0x07);
	opl3sa2_read(hw_config->io_base, OPL3SA2_MISC, &tmp);
	if(tmp != misc) {
		printk(KERN_ERR PFX "Control I/O port %#x is not a YMF7xx chipset!\n",
		       hw_config->io_base);
		goto out_region;
	}

	/*
	 * Check if the MIC register is accessible.
	 */
	opl3sa2_read(hw_config->io_base, OPL3SA2_MIC, &tmp);
	opl3sa2_write(hw_config->io_base, OPL3SA2_MIC, 0x8a);
	opl3sa2_read(hw_config->io_base, OPL3SA2_MIC, &tmp);
	if((tmp & 0x9f) != 0x8a) {
		printk(KERN_ERR
		       PFX "Control I/O port %#x is not a YMF7xx chipset!\n",
		       hw_config->io_base);
		goto out_region;
	}
	opl3sa2_write(hw_config->io_base, OPL3SA2_MIC, tmp);

	/*
	 * Determine chipset type (SA2 or SA3)
	 *
	 * This is done by looking at the chipset version in the lower 3 bits
	 * of the miscellaneous register.
	 */
	version = misc & 0x07;
	printk(KERN_DEBUG PFX "Chipset version = %#x\n", version);
	switch (version) {
		case 0:
			opl3sa2_state[card].chipset = CHIPSET_UNKNOWN;
			printk(KERN_ERR
			       PFX "Unknown Yamaha audio controller version\n");
			break;

		case VERSION_YMF711:
			opl3sa2_state[card].chipset = CHIPSET_OPL3SA2;
			printk(KERN_INFO PFX "Found OPL3-SA2 (YMF711)\n");
			break;

		case VERSION_YMF715:
			opl3sa2_state[card].chipset = CHIPSET_OPL3SA3;
			printk(KERN_INFO
			       PFX "Found OPL3-SA3 (YMF715 or YMF719)\n");
			break;

		case VERSION_YMF715B:
			opl3sa2_state[card].chipset = CHIPSET_OPL3SA3;
			printk(KERN_INFO
			       PFX "Found OPL3-SA3 (YMF715B or YMF719B)\n");
			break;

		case VERSION_YMF715E:
		default:
			opl3sa2_state[card].chipset = CHIPSET_OPL3SA3;
			printk(KERN_INFO
			       PFX "Found OPL3-SA3 (YMF715E or YMF719E)\n");
			break;
	}

	if (opl3sa2_state[card].chipset != CHIPSET_UNKNOWN) {
		/* Generate a pretty name */
		opl3sa2_state[card].chipset_name = (char *)CHIPSET_TABLE[opl3sa2_state[card].chipset];
		return 0;
	}

out_region:
	release_region(hw_config->io_base, 2);
out_nodev:
	return -ENODEV;
}


static void __init attach_opl3sa2(struct address_info* hw_config, int card)
{
	/* Initialize IRQ configuration to IRQ-B: -, IRQ-A: WSS+MPU+OPL3 */
	opl3sa2_write(hw_config->io_base, OPL3SA2_IRQ_CONFIG, 0x0d);

	/* Initialize DMA configuration */
	if(hw_config->dma2 == hw_config->dma) {
		/* Want DMA configuration DMA-B: -, DMA-A: WSS-P+WSS-R */
		opl3sa2_write(hw_config->io_base, OPL3SA2_DMA_CONFIG, 0x03);
	}
	else {
		/* Want DMA configuration DMA-B: WSS-R, DMA-A: WSS-P */
		opl3sa2_write(hw_config->io_base, OPL3SA2_DMA_CONFIG, 0x21);
	}
}


static void __init attach_opl3sa2_mixer(struct address_info *hw_config, int card)
{
	struct mixer_operations* mixer_operations;
	opl3sa2_state_t* devc = &opl3sa2_state[card];

	/* Install master mixer */
	if (devc->chipset == CHIPSET_OPL3SA3) {
		mixer_operations = &opl3sa3_mixer_operations;
	}
	else {
		mixer_operations = &opl3sa2_mixer_operations;
	}

	devc->cfg_port = hw_config->io_base;
	devc->mixer = sound_install_mixer(MIXER_DRIVER_VERSION,
					  mixer_operations->name,
					  mixer_operations,
					  sizeof(struct mixer_operations),
					  devc);
	if(devc->mixer < 0) {
		printk(KERN_ERR PFX "Could not install %s master mixer\n",
			 mixer_operations->name);
	}
	else {
			opl3sa2_mixer_reset(devc);

	}
}


static void opl3sa2_clear_slots(struct address_info* hw_config)
{
	int i;

	for(i = 0; i < 6; i++) {
		hw_config->slots[i] = -1;
	}
}


static void __init opl3sa2_set_ymode(struct address_info* hw_config, int ymode)
{
	/*
	 * Set the Yamaha 3D enhancement mode (aka Ymersion) if asked to and
	 * it's supported.
	 *
	 * 0: Desktop (aka normal)   5-12 cm speakers
	 * 1: Notebook PC mode 1     3 cm speakers
	 * 2: Notebook PC mode 2     1.5 cm speakers
	 * 3: Hi-fi                  16-38 cm speakers
	 */
	if(ymode >= 0 && ymode <= 3) {
		unsigned char sys_ctrl;

		opl3sa2_read(hw_config->io_base, OPL3SA2_SYS_CTRL, &sys_ctrl);
		sys_ctrl = (sys_ctrl & 0xcf) | ((ymode & 3) << 4);
		opl3sa2_write(hw_config->io_base, OPL3SA2_SYS_CTRL, sys_ctrl);
	}
	else {
		printk(KERN_ERR PFX "not setting ymode, it must be one of 0,1,2,3\n");
	}
}


static void __init opl3sa2_set_loopback(struct address_info* hw_config, int loopback)
{
	if(loopback >= 0 && loopback <= 1) {
		unsigned char misc;

		opl3sa2_read(hw_config->io_base, OPL3SA2_MISC, &misc);
		misc = (misc & 0xef) | ((loopback & 1) << 4);
		opl3sa2_write(hw_config->io_base, OPL3SA2_MISC, misc);
	}
	else {
		printk(KERN_ERR PFX "not setting loopback, it must be either 0 or 1\n");
	}
}


static void __exit unload_opl3sa2(struct address_info* hw_config, int card)
{
        /* Release control ports */
	release_region(hw_config->io_base, 2);

	/* Unload mixer */
	if(opl3sa2_state[card].mixer >= 0)
		sound_unload_mixerdev(opl3sa2_state[card].mixer);

}

#ifdef CONFIG_PNP
static struct pnp_device_id pnp_opl3sa2_list[] = {
	{.id = "YMH0021", .driver_data = 0},
	{.id = ""}
};

MODULE_DEVICE_TABLE(pnp, pnp_opl3sa2_list);

static int opl3sa2_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
{
	int card = opl3sa2_cards_num;

	/* we don't actually want to return an error as the user may have specified
	 * no multiple card search
	 */

	if (opl3sa2_cards_num == OPL3SA2_CARDS_MAX)
		return 0;
	opl3sa2_activated[card] = 1;

	/* Our own config: */
	opl3sa2_state[card].cfg.io_base = pnp_port_start(dev, 4);
	opl3sa2_state[card].cfg.irq     = pnp_irq(dev, 0);
	opl3sa2_state[card].cfg.dma     = pnp_dma(dev, 0);
	opl3sa2_state[card].cfg.dma2    = pnp_dma(dev, 1);

	/* The MSS config: */
	opl3sa2_state[card].cfg_mss.io_base      = pnp_port_start(dev, 1);
	opl3sa2_state[card].cfg_mss.irq          = pnp_irq(dev, 0);
	opl3sa2_state[card].cfg_mss.dma          = pnp_dma(dev, 0);
	opl3sa2_state[card].cfg_mss.dma2         = pnp_dma(dev, 1);
	opl3sa2_state[card].cfg_mss.card_subtype = 1; /* No IRQ or DMA setup */

	opl3sa2_state[card].cfg_mpu.io_base       = pnp_port_start(dev, 3);
	opl3sa2_state[card].cfg_mpu.irq           = pnp_irq(dev, 0);
	opl3sa2_state[card].cfg_mpu.dma           = -1;
	opl3sa2_state[card].cfg_mpu.dma2          = -1;
	opl3sa2_state[card].cfg_mpu.always_detect = 1; /* It's there, so use shared IRQs */

	/* Call me paranoid: */
	opl3sa2_clear_slots(&opl3sa2_state[card].cfg);
	opl3sa2_clear_slots(&opl3sa2_state[card].cfg_mss);
	opl3sa2_clear_slots(&opl3sa2_state[card].cfg_mpu);

	opl3sa2_state[card].pdev = dev;
	opl3sa2_cards_num++;

	return 0;
}

static struct pnp_driver opl3sa2_driver = {
	.name		= "opl3sa2",
	.id_table	= pnp_opl3sa2_list,
	.probe		= opl3sa2_pnp_probe,
};

#endif /* CONFIG_PNP */

/* End of component functions */

#ifdef CONFIG_PM_LEGACY

static DEFINE_SPINLOCK(opl3sa2_lock);

/* Power Management support functions */
static int opl3sa2_suspend(struct pm_dev *pdev, unsigned int pm_mode)
{
	unsigned long flags;
	opl3sa2_state_t *p;

	if (!pdev)
		return -EINVAL;

	spin_lock_irqsave(&opl3sa2_lock,flags);

	p = (opl3sa2_state_t *) pdev->data;
	switch (pm_mode) {
	case 1:
		pm_mode = OPL3SA2_PM_MODE1;
		break;
	case 2:
		pm_mode = OPL3SA2_PM_MODE2;
		break;
	case 3:
		pm_mode = OPL3SA2_PM_MODE3;
		break;
	default:
		/* we don't know howto handle this... */
		spin_unlock_irqrestore(&opl3sa2_lock, flags);
		return -EBUSY;
	}

	p->in_suspend = 1;

	/* its supposed to automute before suspending, so we won't bother */
	opl3sa2_write(p->cfg_port, OPL3SA2_PM, pm_mode);
	/* wait a while for the clock oscillator to stabilise */
	mdelay(10);

	spin_unlock_irqrestore(&opl3sa2_lock,flags);
	return 0;
}

static int opl3sa2_resume(struct pm_dev *pdev)
{
	unsigned long flags;
	opl3sa2_state_t *p;

 	if (!pdev)
 		return -EINVAL;

	p = (opl3sa2_state_t *) pdev->data;
	spin_lock_irqsave(&opl3sa2_lock,flags);

 	/* I don't think this is necessary */
	opl3sa2_write(p->cfg_port, OPL3SA2_PM, OPL3SA2_PM_MODE0);
	opl3sa2_mixer_restore(p);
 	p->in_suspend = 0;

	spin_unlock_irqrestore(&opl3sa2_lock,flags);
	return 0;
}

static int opl3sa2_pm_callback(struct pm_dev *pdev, pm_request_t rqst, void *data)
{
	unsigned long mode = (unsigned  long)data;

	switch (rqst) {
		case PM_SUSPEND:
			return opl3sa2_suspend(pdev, mode);

		case PM_RESUME:
			return opl3sa2_resume(pdev);
	}
	return 0;
}
#endif /* CONFIG_PM_LEGACY */

/*
 * Install OPL3-SA2 based card(s).
 *
 * Need to have ad1848 and mpu401 loaded ready.
 */
static int __init init_opl3sa2(void)
{
	int card, max;

	/* Sanitize isapnp and multiple settings */
	isapnp = isapnp != 0 ? 1 : 0;
	multiple = multiple != 0 ? 1 : 0;

	max = (multiple && isapnp) ? OPL3SA2_CARDS_MAX : 1;

#ifdef CONFIG_PNP
	if (isapnp){
		pnp_register_driver(&opl3sa2_driver);
		if(!opl3sa2_cards_num){
			printk(KERN_INFO PFX "No PnP cards found\n");
			isapnp = 0;
		}
		max = opl3sa2_cards_num;
	}
#endif

	for (card = 0; card < max; card++) {
		/* If a user wants an I/O then assume they meant it */
		struct resource *ports;
		int base;
		
		if (!isapnp) {
			if (io == -1 || irq == -1 || dma == -1 ||
			    dma2 == -1 || mss_io == -1) {
				printk(KERN_ERR
				       PFX "io, mss_io, irq, dma, and dma2 must be set\n");
				return -EINVAL;
			}
			opl3sa2_cards_num++;

			/*
			 * Our own config:
			 * (NOTE: IRQ and DMA aren't used, so they're set to
			 *  give pretty output from conf_printf. :)
			 */
			opl3sa2_state[card].cfg.io_base = io;
			opl3sa2_state[card].cfg.irq     = irq;
			opl3sa2_state[card].cfg.dma     = dma;
			opl3sa2_state[card].cfg.dma2    = dma2;
	
			/* The MSS config: */
			opl3sa2_state[card].cfg_mss.io_base      = mss_io;
			opl3sa2_state[card].cfg_mss.irq          = irq;
			opl3sa2_state[card].cfg_mss.dma          = dma;
			opl3sa2_state[card].cfg_mss.dma2         = dma2;
			opl3sa2_state[card].cfg_mss.card_subtype = 1; /* No IRQ or DMA setup */

			opl3sa2_state[card].cfg_mpu.io_base       = mpu_io;
			opl3sa2_state[card].cfg_mpu.irq           = irq;
			opl3sa2_state[card].cfg_mpu.dma           = -1;
			opl3sa2_state[card].cfg_mpu.always_detect = 1; /* Use shared IRQs */

			/* Call me paranoid: */
			opl3sa2_clear_slots(&opl3sa2_state[card].cfg);
			opl3sa2_clear_slots(&opl3sa2_state[card].cfg_mss);
			opl3sa2_clear_slots(&opl3sa2_state[card].cfg_mpu);
		}

		/* FIXME: leak */
		if (probe_opl3sa2(&opl3sa2_state[card].cfg, card))
			return -ENODEV;

		base = opl3sa2_state[card].cfg_mss.io_base;

		if (!request_region(base, 4, "WSS config"))
			goto failed;

		ports = request_region(base + 4, 4, "ad1848");
		if (!ports)
			goto failed2;

		if (!probe_ms_sound(&opl3sa2_state[card].cfg_mss, ports)) {
			/*
			 * If one or more cards are already registered, don't
			 * return an error but print a warning.  Note, this
			 * should never really happen unless the hardware or
			 * ISA PnP screwed up.
			 */
			release_region(base + 4, 4);
		failed2:
			release_region(base, 4);
		failed:
			release_region(opl3sa2_state[card].cfg.io_base, 2);

			if (opl3sa2_cards_num) {
				printk(KERN_WARNING
				       PFX "There was a problem probing one "
				       " of the ISA PNP cards, continuing\n");
				opl3sa2_cards_num--;
				continue;
			} else
				return -ENODEV;
		}

		attach_opl3sa2(&opl3sa2_state[card].cfg, card);
		conf_printf(opl3sa2_state[card].chipset_name, &opl3sa2_state[card].cfg);
		attach_opl3sa2_mixer(&opl3sa2_state[card].cfg, card);
		attach_opl3sa2_mss(&opl3sa2_state[card].cfg_mss, ports);

		/* ewww =) */
		opl3sa2_state[card].card = card;
#ifdef CONFIG_PM_LEGACY
		/* register our power management capabilities */
		opl3sa2_state[card].pmdev = pm_register(PM_ISA_DEV, card, opl3sa2_pm_callback);
		if (opl3sa2_state[card].pmdev)
			opl3sa2_state[card].pmdev->data = &opl3sa2_state[card];
#endif /* CONFIG_PM_LEGACY */

		/*
		 * Set the Yamaha 3D enhancement mode (aka Ymersion) if asked to and
		 * it's supported.
		 */
		if (ymode != -1) {
			if (opl3sa2_state[card].chipset == CHIPSET_OPL3SA2) {
				printk(KERN_ERR
				       PFX "ymode not supported on OPL3-SA2\n");
			}
			else {
				opl3sa2_set_ymode(&opl3sa2_state[card].cfg, ymode);
			}
		}


		/* Set A/D input to Mono loopback if asked to. */
		if (loopback != -1) {
			opl3sa2_set_loopback(&opl3sa2_state[card].cfg, loopback);
		}
		
		/* Attach MPU if we've been asked to do so, failure isn't fatal */
		if (opl3sa2_state[card].cfg_mpu.io_base != -1) {
			int base = opl3sa2_state[card].cfg_mpu.io_base;
			struct resource *ports;
			ports = request_region(base, 2, "mpu401");
			if (!ports)
				goto out;
			if (!probe_mpu401(&opl3sa2_state[card].cfg_mpu, ports)) {
				release_region(base, 2);
				goto out;
			}
			if (attach_mpu401(&opl3sa2_state[card].cfg_mpu, THIS_MODULE)) {
				printk(KERN_ERR PFX "failed to attach MPU401\n");
				opl3sa2_state[card].cfg_mpu.slots[1] = -1;
			}
		}
	}

out:
	if (isapnp) {
		printk(KERN_NOTICE PFX "%d PnP card(s) found.\n", opl3sa2_cards_num);
	}

	return 0;
}


/*
 * Uninstall OPL3-SA2 based card(s).
 */
static void __exit cleanup_opl3sa2(void)
{
	int card;

	for(card = 0; card < opl3sa2_cards_num; card++) {
#ifdef CONFIG_PM_LEGACY
		if (opl3sa2_state[card].pmdev)
			pm_unregister(opl3sa2_state[card].pmdev);
#endif
	        if (opl3sa2_state[card].cfg_mpu.slots[1] != -1) {
			unload_opl3sa2_mpu(&opl3sa2_state[card].cfg_mpu);
 		}
		unload_opl3sa2_mss(&opl3sa2_state[card].cfg_mss);
		unload_opl3sa2(&opl3sa2_state[card].cfg, card);
#ifdef CONFIG_PNP
		pnp_unregister_driver(&opl3sa2_driver);
#endif
	}
}

module_init(init_opl3sa2);
module_exit(cleanup_opl3sa2);

#ifndef MODULE
static int __init setup_opl3sa2(char *str)
{
	/* io, irq, dma, dma2,... */
#ifdef CONFIG_PNP
	int ints[11];
#else
	int ints[9];
#endif
	str = get_options(str, ARRAY_SIZE(ints), ints);
	
	io       = ints[1];
	irq      = ints[2];
	dma      = ints[3];
	dma2     = ints[4];
	mss_io   = ints[5];
	mpu_io   = ints[6];
	ymode    = ints[7];
	loopback = ints[8];
#ifdef CONFIG_PNP
	isapnp   = ints[9];
	multiple = ints[10];
#endif
	return 1;
}

__setup("opl3sa2=", setup_opl3sa2);
#endif