aboutsummaryrefslogtreecommitdiffstats
path: root/include/sound
diff options
context:
space:
mode:
authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-04-28 18:36:10 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-04-30 16:12:44 +0100
commit39b8eab7e7fe429d8d57f18c0ebdb7c25df55f5c (patch)
treed5b1aac224feb20edcca4ced5b1e95b9b032f8fe /include/sound
parentdde3a7e9cb187e25deeac0269733116d4840f91e (diff)
downloadmrst-s0i3-test-39b8eab7e7fe429d8d57f18c0ebdb7c25df55f5c.tar.gz
mrst-s0i3-test-39b8eab7e7fe429d8d57f18c0ebdb7c25df55f5c.tar.xz
mrst-s0i3-test-39b8eab7e7fe429d8d57f18c0ebdb7c25df55f5c.zip
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')
-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
index 00000000000..3718928cde1
--- /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