diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/oss/sgalaxy.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'sound/oss/sgalaxy.c')
-rw-r--r-- | sound/oss/sgalaxy.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/sound/oss/sgalaxy.c b/sound/oss/sgalaxy.c new file mode 100644 index 000000000000..3f32d4674371 --- /dev/null +++ b/sound/oss/sgalaxy.c | |||
@@ -0,0 +1,207 @@ | |||
1 | /* | ||
2 | * sound/sgalaxy.c | ||
3 | * | ||
4 | * Low level driver for Aztech Sound Galaxy cards. | ||
5 | * Copyright 1998 Artur Skawina <skawina@geocities.com> | ||
6 | * | ||
7 | * Supported cards: | ||
8 | * Aztech Sound Galaxy Waverider Pro 32 - 3D | ||
9 | * Aztech Sound Galaxy Washington 16 | ||
10 | * | ||
11 | * Based on cs4232.c by Hannu Savolainen and Alan Cox. | ||
12 | * | ||
13 | * | ||
14 | * Copyright (C) by Hannu Savolainen 1993-1997 | ||
15 | * | ||
16 | * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) | ||
17 | * Version 2 (June 1991). See the "COPYING" file distributed with this software | ||
18 | * for more info. | ||
19 | * | ||
20 | * Changes: | ||
21 | * 11-10-2000 Bartlomiej Zolnierkiewicz <bkz@linux-ide.org> | ||
22 | * Added __init to sb_rst() and sb_cmd() | ||
23 | */ | ||
24 | |||
25 | #include <linux/init.h> | ||
26 | #include <linux/module.h> | ||
27 | |||
28 | #include "sound_config.h" | ||
29 | #include "ad1848.h" | ||
30 | |||
31 | static void sleep( unsigned howlong ) | ||
32 | { | ||
33 | current->state = TASK_INTERRUPTIBLE; | ||
34 | schedule_timeout(howlong); | ||
35 | } | ||
36 | |||
37 | #define DPORT 0x80 | ||
38 | |||
39 | /* Sound Blaster regs */ | ||
40 | |||
41 | #define SBDSP_RESET 0x6 | ||
42 | #define SBDSP_READ 0xA | ||
43 | #define SBDSP_COMMAND 0xC | ||
44 | #define SBDSP_STATUS SBDSP_COMMAND | ||
45 | #define SBDSP_DATA_AVAIL 0xE | ||
46 | |||
47 | static int __init sb_rst(int base) | ||
48 | { | ||
49 | int i; | ||
50 | |||
51 | outb( 1, base+SBDSP_RESET ); /* reset the DSP */ | ||
52 | outb( 0, base+SBDSP_RESET ); | ||
53 | |||
54 | for ( i=0; i<500; i++ ) /* delay */ | ||
55 | inb(DPORT); | ||
56 | |||
57 | for ( i=0; i<100000; i++ ) | ||
58 | { | ||
59 | if ( inb( base+SBDSP_DATA_AVAIL )&0x80 ) | ||
60 | break; | ||
61 | } | ||
62 | |||
63 | if ( inb( base+SBDSP_READ )!=0xAA ) | ||
64 | return 0; | ||
65 | |||
66 | return 1; | ||
67 | } | ||
68 | |||
69 | static int __init sb_cmd( int base, unsigned char val ) | ||
70 | { | ||
71 | int i; | ||
72 | |||
73 | for ( i=100000; i; i-- ) | ||
74 | { | ||
75 | if ( (inb( base+SBDSP_STATUS )&0x80)==0 ) | ||
76 | { | ||
77 | outb( val, base+SBDSP_COMMAND ); | ||
78 | break; | ||
79 | } | ||
80 | } | ||
81 | return i; /* i>0 == success */ | ||
82 | } | ||
83 | |||
84 | |||
85 | #define ai_sgbase driver_use_1 | ||
86 | |||
87 | static int __init probe_sgalaxy( struct address_info *ai ) | ||
88 | { | ||
89 | struct resource *ports; | ||
90 | int n; | ||
91 | |||
92 | if (!request_region(ai->io_base, 4, "WSS config")) { | ||
93 | printk(KERN_ERR "sgalaxy: WSS IO port 0x%03x not available\n", ai->io_base); | ||
94 | return 0; | ||
95 | } | ||
96 | |||
97 | ports = request_region(ai->io_base + 4, 4, "ad1848"); | ||
98 | if (!ports) { | ||
99 | printk(KERN_ERR "sgalaxy: WSS IO port 0x%03x not available\n", ai->io_base); | ||
100 | release_region(ai->io_base, 4); | ||
101 | return 0; | ||
102 | } | ||
103 | |||
104 | if (!request_region( ai->ai_sgbase, 0x10, "SoundGalaxy SB")) { | ||
105 | printk(KERN_ERR "sgalaxy: SB IO port 0x%03x not available\n", ai->ai_sgbase); | ||
106 | release_region(ai->io_base + 4, 4); | ||
107 | release_region(ai->io_base, 4); | ||
108 | return 0; | ||
109 | } | ||
110 | |||
111 | if (ad1848_detect(ports, NULL, ai->osp)) | ||
112 | goto out; /* The card is already active, check irq etc... */ | ||
113 | |||
114 | /* switch to MSS/WSS mode */ | ||
115 | |||
116 | sb_rst( ai->ai_sgbase ); | ||
117 | |||
118 | sb_cmd( ai->ai_sgbase, 9 ); | ||
119 | sb_cmd( ai->ai_sgbase, 0 ); | ||
120 | |||
121 | sleep( HZ/10 ); | ||
122 | |||
123 | out: | ||
124 | if (!probe_ms_sound(ai, ports)) { | ||
125 | release_region(ai->io_base + 4, 4); | ||
126 | release_region(ai->io_base, 4); | ||
127 | release_region(ai->ai_sgbase, 0x10); | ||
128 | return 0; | ||
129 | } | ||
130 | |||
131 | attach_ms_sound(ai, ports, THIS_MODULE); | ||
132 | n=ai->slots[0]; | ||
133 | |||
134 | if (n!=-1 && audio_devs[n]->mixer_dev != -1 ) { | ||
135 | AD1848_REROUTE( SOUND_MIXER_LINE1, SOUND_MIXER_LINE ); /* Line-in */ | ||
136 | AD1848_REROUTE( SOUND_MIXER_LINE2, SOUND_MIXER_SYNTH ); /* FM+Wavetable*/ | ||
137 | AD1848_REROUTE( SOUND_MIXER_LINE3, SOUND_MIXER_CD ); /* CD */ | ||
138 | } | ||
139 | return 1; | ||
140 | } | ||
141 | |||
142 | static void __exit unload_sgalaxy( struct address_info *ai ) | ||
143 | { | ||
144 | unload_ms_sound( ai ); | ||
145 | release_region( ai->ai_sgbase, 0x10 ); | ||
146 | } | ||
147 | |||
148 | static struct address_info cfg; | ||
149 | |||
150 | static int __initdata io = -1; | ||
151 | static int __initdata irq = -1; | ||
152 | static int __initdata dma = -1; | ||
153 | static int __initdata dma2 = -1; | ||
154 | static int __initdata sgbase = -1; | ||
155 | |||
156 | module_param(io, int, 0); | ||
157 | module_param(irq, int, 0); | ||
158 | module_param(dma, int, 0); | ||
159 | module_param(dma2, int, 0); | ||
160 | module_param(sgbase, int, 0); | ||
161 | |||
162 | static int __init init_sgalaxy(void) | ||
163 | { | ||
164 | cfg.io_base = io; | ||
165 | cfg.irq = irq; | ||
166 | cfg.dma = dma; | ||
167 | cfg.dma2 = dma2; | ||
168 | cfg.ai_sgbase = sgbase; | ||
169 | |||
170 | if (cfg.io_base == -1 || cfg.irq == -1 || cfg.dma == -1 || cfg.ai_sgbase == -1 ) { | ||
171 | printk(KERN_ERR "sgalaxy: io, irq, dma and sgbase must be set.\n"); | ||
172 | return -EINVAL; | ||
173 | } | ||
174 | |||
175 | if ( probe_sgalaxy(&cfg) == 0 ) | ||
176 | return -ENODEV; | ||
177 | |||
178 | return 0; | ||
179 | } | ||
180 | |||
181 | static void __exit cleanup_sgalaxy(void) | ||
182 | { | ||
183 | unload_sgalaxy(&cfg); | ||
184 | } | ||
185 | |||
186 | module_init(init_sgalaxy); | ||
187 | module_exit(cleanup_sgalaxy); | ||
188 | |||
189 | #ifndef MODULE | ||
190 | static int __init setup_sgalaxy(char *str) | ||
191 | { | ||
192 | /* io, irq, dma, dma2, sgbase */ | ||
193 | int ints[6]; | ||
194 | |||
195 | str = get_options(str, ARRAY_SIZE(ints), ints); | ||
196 | io = ints[1]; | ||
197 | irq = ints[2]; | ||
198 | dma = ints[3]; | ||
199 | dma2 = ints[4]; | ||
200 | sgbase = ints[5]; | ||
201 | |||
202 | return 1; | ||
203 | } | ||
204 | |||
205 | __setup("sgalaxy=", setup_sgalaxy); | ||
206 | #endif | ||
207 | MODULE_LICENSE("GPL"); | ||