aboutsummaryrefslogtreecommitdiff
path: root/include/sound/atmel-abdac.h
diff options
context:
space:
mode:
authorHans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>2009-02-05 13:10:59 +0100
committerTakashi Iwai <tiwai@suse.de>2009-02-05 15:08:48 +0100
commite4967d6016b7785edafdb871e6d3e4426cb4bd1f (patch)
tree28b805892ec72a1f4bec61cb1cf1698187e545d2 /include/sound/atmel-abdac.h
parent6bd0dd5f0ec67f654ebf95be8ef414afae1eecb7 (diff)
downloadlinux-linaro-stable-e4967d6016b7785edafdb871e6d3e4426cb4bd1f.tar.gz
ALSA: Add ALSA driver for Atmel Audio Bitstream DAC
This patch adds ALSA support for the Audio Bistream DAC found on Atmel AVR32 devices. The ABDAC is an Atmel IP which might show up on AT91 devices in the future, hence making a generic driver which can be utilized by AT91 arch if needed. Datasheet describing the ABDAC peripheral is available in the AT32AP7000 datasheet, http://www.atmel.com/dyn/products/datasheets.asp?family_id=682 Tested on ATSTK1006 + ATSTK1000 with a class D amplifier stage. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/atmel-abdac.h')
-rw-r--r--include/sound/atmel-abdac.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/include/sound/atmel-abdac.h b/include/sound/atmel-abdac.h
new file mode 100644
index 000000000000..edff6a8ba1b5
--- /dev/null
+++ b/include/sound/atmel-abdac.h
@@ -0,0 +1,23 @@
+/*
+ * Driver for the Atmel Audio Bitstream DAC (ABDAC)
+ *
+ * Copyright (C) 2009 Atmel Corporation
+ *
+ * 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 __INCLUDE_SOUND_ATMEL_ABDAC_H
+#define __INCLUDE_SOUND_ATMEL_ABDAC_H
+
+#include <linux/dw_dmac.h>
+
+/**
+ * struct atmel_abdac_pdata - board specific ABDAC configuration
+ * @dws: DMA slave interface to use for sound playback.
+ */
+struct atmel_abdac_pdata {
+ struct dw_dma_slave dws;
+};
+
+#endif /* __INCLUDE_SOUND_ATMEL_ABDAC_H */