From 39b8eab7e7fe429d8d57f18c0ebdb7c25df55f5c Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 28 Apr 2010 18:36:10 +0100 Subject: 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 Acked-by: Liam Girdwood --- include/sound/wm9090.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 include/sound/wm9090.h (limited to 'include/sound') 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 -- cgit v1.2.3