diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-04-28 18:36:10 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-04-30 16:12:44 +0100 |
| commit | 39b8eab7e7fe429d8d57f18c0ebdb7c25df55f5c (patch) | |
| tree | d5b1aac224feb20edcca4ced5b1e95b9b032f8fe /include/sound/wm9090.h | |
| parent | dde3a7e9cb187e25deeac0269733116d4840f91e (diff) | |
| download | linux-39b8eab7e7fe429d8d57f18c0ebdb7c25df55f5c.tar.bz2 | |
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.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/sound/wm9090.h b/include/sound/wm9090.h new file mode 100644 index 000000000000..3718928cde1a --- /dev/null +++ b/include/sound/wm9090.h @@ -0,0 +1,28 @@ +/* + * linux/sound/wm9090.h -- Platform data for WM9090 + * + * Copyright 2009, 2010 Wolfson Microelectronics. PLC. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __LINUX_SND_WM9090_H +#define __LINUX_SND_WM9090_H + +struct wm9090_platform_data { + /* Line inputs 1 & 2 can optionally be differential */ + unsigned int lin1_diff:1; + unsigned int lin2_diff:1; + + /* AGC configuration. This is intended to protect the speaker + * against overdriving and will therefore depend on the + * hardware setup with incorrect runtime configuration + * potentially causing hardware damage. + */ + unsigned int agc_ena:1; + u16 agc[3]; +}; + +#endif |