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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-04-28 13:36:10 -0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-04-30 11:12:44 -0400
commit39b8eab7e7fe429d8d57f18c0ebdb7c25df55f5c (patch)
treed5b1aac224feb20edcca4ced5b1e95b9b032f8fe /include/sound/wm9090.h
parentdde3a7e9cb187e25deeac0269733116d4840f91e (diff)
ASoC: Add WM9090 amplifier driver
The WM9090 is a high performance low power audio subsystem, including headphone and class D speaker drivers. Note that this driver is a standalone CODEC driver and so is only immediately suitable for use with the WM9090 as a standalone sound card taking line inputs, or with a DAC with no software control. The pending ASoC multi-CODEC support will expand the range of systems that can use the driver, or system-specific adaptations can be made. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'include/sound/wm9090.h')
-rw-r--r--include/sound/wm9090.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/include/sound/wm9090.h b/include/sound/wm9090.h
new file mode 100644
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+++ b/include/sound/wm9090.h
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1/*
2 * linux/sound/wm9090.h -- Platform data for WM9090
3 *
4 * Copyright 2009, 2010 Wolfson Microelectronics. PLC.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#ifndef __LINUX_SND_WM9090_H
12#define __LINUX_SND_WM9090_H
13
14struct wm9090_platform_data {
15 /* Line inputs 1 & 2 can optionally be differential */
16 unsigned int lin1_diff:1;
17 unsigned int lin2_diff:1;
18
19 /* AGC configuration. This is intended to protect the speaker
20 * against overdriving and will therefore depend on the
21 * hardware setup with incorrect runtime configuration
22 * potentially causing hardware damage.
23 */
24 unsigned int agc_ena:1;
25 u16 agc[3];
26};
27
28#endif