1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
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
|
/*
* sound/sgalaxy.c
*
* Low level driver for Aztech Sound Galaxy cards.
* Copyright 1998 Artur Skawina <skawina@geocities.com>
*
* Supported cards:
* Aztech Sound Galaxy Waverider Pro 32 - 3D
* Aztech Sound Galaxy Washington 16
*
* Based on cs4232.c by Hannu Savolainen and Alan Cox.
*/
/*
* 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.
*/
#include <linux/config.h>
#include <linux/module.h>
#include "sound_config.h"
#include "soundmodule.h"
#if defined(CONFIG_SGALAXY) || defined (MODULE)
static void sleep( unsigned howlong )
{
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(howlong);
}
#define DPORT 0x80
/* Sound Blaster regs */
#define SBDSP_RESET 0x6
#define SBDSP_READ 0xA
#define SBDSP_COMMAND 0xC
#define SBDSP_STATUS SBDSP_COMMAND
#define SBDSP_DATA_AVAIL 0xE
static int sb_rst(int base)
{
int i;
outb( 1, base+SBDSP_RESET ); /* reset the DSP */
outb( 0, base+SBDSP_RESET );
for ( i=0; i<500; i++ ) /* delay */
inb(DPORT);
for ( i=0; i<100000; i++ )
{
if ( inb( base+SBDSP_DATA_AVAIL )&0x80 )
break;
}
if ( inb( base+SBDSP_READ )!=0xAA )
return 0;
return 1;
}
static int sb_cmd( int base, unsigned char val )
{
int i;
for ( i=100000; i; i-- )
{
if ( (inb( base+SBDSP_STATUS )&0x80)==0 )
{
outb( val, base+SBDSP_COMMAND );
break;
}
}
return i; /* i>0 == success */
}
#define ai_sgbase driver_use_1
int probe_sgalaxy( struct address_info *ai )
{
if ( check_region( ai->io_base, 8 ) )
{
printk(KERN_ERR "sgalaxy: WSS IO port 0x%03x not available\n", ai->io_base);
return 0;
}
if ( ad1848_detect( ai->io_base+4, NULL, ai->osp ) )
return probe_ms_sound(ai); /* The card is already active, check irq etc... */
if ( check_region( ai->ai_sgbase, 0x10 ) )
{
printk(KERN_ERR "sgalaxy: SB IO port 0x%03x not available\n", ai->ai_sgbase);
return 0;
}
/* switch to MSS/WSS mode */
sb_rst( ai->ai_sgbase );
sb_cmd( ai->ai_sgbase, 9 );
sb_cmd( ai->ai_sgbase, 0 );
sleep( HZ/10 );
return probe_ms_sound(ai);
}
void attach_sgalaxy( struct address_info *ai )
{
int n;
request_region( ai->ai_sgbase, 0x10, "SoundGalaxy SB" );
attach_ms_sound( ai );
n=ai->slots[0];
if (n!=-1 && audio_devs[n]->mixer_dev != -1 )
{
AD1848_REROUTE( SOUND_MIXER_LINE1, SOUND_MIXER_LINE ); /* Line-in */
AD1848_REROUTE( SOUND_MIXER_LINE2, SOUND_MIXER_SYNTH ); /* FM+Wavetable*/
AD1848_REROUTE( SOUND_MIXER_LINE3, SOUND_MIXER_CD ); /* CD */
}
}
void unload_sgalaxy( struct address_info *ai )
{
unload_ms_sound( ai );
release_region( ai->ai_sgbase, 0x10 );
}
#ifdef MODULE
int io = -1;
int irq = -1;
int dma = -1;
int dma2 = -1;
int sgbase = -1;
MODULE_PARM(io,"i");
MODULE_PARM(irq,"i");
MODULE_PARM(dma,"i");
MODULE_PARM(dma2,"i");
MODULE_PARM(sgbase,"i");
EXPORT_NO_SYMBOLS;
struct address_info ai;
int init_module(void)
{
if ( io==-1 || irq==-1 || dma==-1 || sgbase==-1 )
{
printk(KERN_ERR "sgalaxy: io, irq, dma and sgbase must be set.\n");
return -EINVAL;
}
ai.io_base = io;
ai.irq = irq;
ai.dma = dma;
ai.dma2 = dma2;
ai.ai_sgbase = sgbase;
if ( probe_sgalaxy( &ai )==0 )
return -ENODEV;
attach_sgalaxy( &ai );
SOUND_LOCK;
return 0;
}
void cleanup_module(void)
{
unload_sgalaxy( &ai );
SOUND_LOCK_END;
}
#endif
#endif
|
