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/maestro.h |
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/maestro.h')
-rw-r--r-- | sound/oss/maestro.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/sound/oss/maestro.h b/sound/oss/maestro.h new file mode 100644 index 000000000000..023ec7f968f9 --- /dev/null +++ b/sound/oss/maestro.h | |||
@@ -0,0 +1,60 @@ | |||
1 | /* | ||
2 | * Registers for the ESS PCI cards | ||
3 | */ | ||
4 | |||
5 | /* | ||
6 | * Memory access | ||
7 | */ | ||
8 | |||
9 | #define ESS_MEM_DATA 0x00 | ||
10 | #define ESS_MEM_INDEX 0x02 | ||
11 | |||
12 | /* | ||
13 | * AC-97 Codec port. Delay 1uS after each write. This is used to | ||
14 | * talk AC-97 (see intel.com). Write data then register. | ||
15 | */ | ||
16 | |||
17 | #define ESS_AC97_INDEX 0x30 /* byte wide */ | ||
18 | #define ESS_AC97_DATA 0x32 | ||
19 | |||
20 | /* | ||
21 | * Reading is a bit different. You write register|0x80 to ubdex | ||
22 | * delay 1uS poll the low bit of index, when it clears read the | ||
23 | * data value. | ||
24 | */ | ||
25 | |||
26 | /* | ||
27 | * Control port. Not yet fully understood | ||
28 | * The value 0xC090 gets loaded to it then 0x0000 and 0x2800 | ||
29 | * to the data port. Then after 4uS the value 0x300 is written | ||
30 | */ | ||
31 | |||
32 | #define RING_BUS_CTRL_L 0x34 | ||
33 | #define RING_BUS_CTRL_H 0x36 | ||
34 | |||
35 | /* | ||
36 | * This is also used during setup. The value 0x17 is written to it | ||
37 | */ | ||
38 | |||
39 | #define ESS_SETUP_18 0x18 | ||
40 | |||
41 | /* | ||
42 | * And this one gets 0x000b | ||
43 | */ | ||
44 | |||
45 | #define ESS_SETUP_A2 0xA2 | ||
46 | |||
47 | /* | ||
48 | * And this 0x0000 | ||
49 | */ | ||
50 | |||
51 | #define ESS_SETUP_A4 0xA4 | ||
52 | #define ESS_SETUP_A6 0xA6 | ||
53 | |||
54 | /* | ||
55 | * Stuff to do with Harpo - the wave stuff | ||
56 | */ | ||
57 | |||
58 | #define ESS_WAVETABLE_SIZE 0x14 | ||
59 | #define ESS_WAVETABLE_2M 0xA180 | ||
60 | |||