[alsa-devel] [PATCH v3 3/3] ALSA: topology: Export ID types for TLV controls.

Liam Girdwood liam.r.girdwood at linux.intel.com
Fri May 29 20:06:15 CEST 2015


Make sure userspace can define TLV controls for topology using the correct
type numbers and channel mappings.

Signed-off-by: Liam Girdwood <liam.r.girdwood at linux.intel.com>
---
 include/sound/tlv.h      | 15 +--------------
 include/uapi/sound/tlv.h | 31 +++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 14 deletions(-)
 create mode 100644 include/uapi/sound/tlv.h

diff --git a/include/sound/tlv.h b/include/sound/tlv.h
index e11e179..df97d19 100644
--- a/include/sound/tlv.h
+++ b/include/sound/tlv.h
@@ -31,12 +31,7 @@
  *                       ~(sizeof(unsigned int) - 1)) ....
  */
 
-#define SNDRV_CTL_TLVT_CONTAINER 0	/* one level down - group of TLVs */
-#define SNDRV_CTL_TLVT_DB_SCALE	1       /* dB scale */
-#define SNDRV_CTL_TLVT_DB_LINEAR 2	/* linear volume */
-#define SNDRV_CTL_TLVT_DB_RANGE 3	/* dB range container */
-#define SNDRV_CTL_TLVT_DB_MINMAX 4	/* dB scale with min/max */
-#define SNDRV_CTL_TLVT_DB_MINMAX_MUTE 5	/* dB scale with min/max with mute */
+#include <uapi/sound/tlv.h>
 
 #define TLV_ITEM(type, ...) \
 	(type), TLV_LENGTH(__VA_ARGS__), __VA_ARGS__
@@ -90,12 +85,4 @@
 
 #define TLV_DB_GAIN_MUTE	-9999999
 
-/*
- * channel-mapping TLV items
- *  TLV length must match with num_channels
- */
-#define SNDRV_CTL_TLVT_CHMAP_FIXED	0x101	/* fixed channel position */
-#define SNDRV_CTL_TLVT_CHMAP_VAR	0x102	/* channels freely swappable */
-#define SNDRV_CTL_TLVT_CHMAP_PAIRED	0x103	/* pair-wise swappable */
-
 #endif /* __SOUND_TLV_H */
diff --git a/include/uapi/sound/tlv.h b/include/uapi/sound/tlv.h
new file mode 100644
index 0000000..ffc4f20
--- /dev/null
+++ b/include/uapi/sound/tlv.h
@@ -0,0 +1,31 @@
+/*
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+#ifndef __UAPI_SOUND_TLV_H
+#define __UAPI_SOUND_TLV_H
+
+#define SNDRV_CTL_TLVT_CONTAINER 0	/* one level down - group of TLVs */
+#define SNDRV_CTL_TLVT_DB_SCALE	1       /* dB scale */
+#define SNDRV_CTL_TLVT_DB_LINEAR 2	/* linear volume */
+#define SNDRV_CTL_TLVT_DB_RANGE 3	/* dB range container */
+#define SNDRV_CTL_TLVT_DB_MINMAX 4	/* dB scale with min/max */
+#define SNDRV_CTL_TLVT_DB_MINMAX_MUTE 5	/* dB scale with min/max with mute */
+
+/*
+ * channel-mapping TLV items
+ *  TLV length must match with num_channels
+ */
+#define SNDRV_CTL_TLVT_CHMAP_FIXED	0x101	/* fixed channel position */
+#define SNDRV_CTL_TLVT_CHMAP_VAR	0x102	/* channels freely swappable */
+#define SNDRV_CTL_TLVT_CHMAP_PAIRED	0x103	/* pair-wise swappable */
+
+#endif
-- 
2.1.4



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