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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/pci/ice1712/amp.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/pci/ice1712/amp.c')
-rw-r--r--sound/pci/ice1712/amp.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/sound/pci/ice1712/amp.c b/sound/pci/ice1712/amp.c
new file mode 100644
index 000000000000..779951725e1e
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+++ b/sound/pci/ice1712/amp.c
@@ -0,0 +1,65 @@
1/*
2 * ALSA driver for ICEnsemble VT1724 (Envy24HT)
3 *
4 * Lowlevel functions for Advanced Micro Peripherals Ltd AUDIO2000
5 *
6 * Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24#include <sound/driver.h>
25#include <asm/io.h>
26#include <linux/delay.h>
27#include <linux/interrupt.h>
28#include <linux/init.h>
29#include <linux/slab.h>
30#include <sound/core.h>
31
32#include "ice1712.h"
33#include "amp.h"
34
35
36static int __devinit snd_vt1724_amp_init(ice1712_t *ice)
37{
38 /* only use basic functionality for now */
39
40 ice->num_total_dacs = 2; /* only PSDOUT0 is connected */
41 ice->num_total_adcs = 2;
42
43 return 0;
44}
45
46static int __devinit snd_vt1724_amp_add_controls(ice1712_t *ice)
47{
48 /* we use pins 39 and 41 of the VT1616 for left and right read outputs */
49 snd_ac97_write_cache(ice->ac97, 0x5a, snd_ac97_read(ice->ac97, 0x5a) & ~0x8000);
50 return 0;
51}
52
53
54/* entry point */
55struct snd_ice1712_card_info snd_vt1724_amp_cards[] __devinitdata = {
56 {
57 .subvendor = VT1724_SUBDEVICE_AUDIO2000,
58 .name = "AMP Ltd AUDIO2000",
59 .model = "amp2000",
60 .chip_init = snd_vt1724_amp_init,
61 .build_controls = snd_vt1724_amp_add_controls,
62 },
63 { } /* terminator */
64};
65