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From d7d03f10e6da33cd732e25499977c88f172732a4 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Wed, 13 Jan 2016 19:42:48 +0100
Subject: [PATCH] rpi: update vc_vchi_audioserv_defs.h
Add audioserv 3 extensions. The changes were taken from the paste
linked here:
https://github.com/raspberrypi/linux/pull/1166#issuecomment-151917067
---
sound/arm/vc_vchi_audioserv_defs.h | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
--- a/sound/arm/vc_vchi_audioserv_defs.h
+++ b/sound/arm/vc_vchi_audioserv_defs.h
@@ -16,7 +16,7 @@
#define _VC_AUDIO_DEFS_H_
#define VC_AUDIOSERV_MIN_VER 1
-#define VC_AUDIOSERV_VER 2
+#define VC_AUDIOSERV_VER 3
// FourCC code used for VCHI connection
#define VC_AUDIO_SERVER_NAME MAKE_FOURCC("AUDS")
@@ -36,6 +36,7 @@ typedef enum {
VC_AUDIO_MSG_TYPE_START, // Configure audio
VC_AUDIO_MSG_TYPE_STOP, // Configure audio
VC_AUDIO_MSG_TYPE_WRITE, // Configure audio
+ VC_AUDIO_MSG_TYPE_LATENCY, // request latency in cycles
VC_AUDIO_MSG_TYPE_MAX
} VC_AUDIO_MSG_TYPE;
@@ -44,6 +45,7 @@ typedef struct {
uint32_t channels;
uint32_t samplerate;
uint32_t bps;
+ uint32_t channelmap;
} VC_AUDIO_CONFIG_T;
@@ -84,6 +86,12 @@ typedef struct {
uint16_t max_packet;
} VC_AUDIO_WRITE_T;
+// query latency in samples of sink
+typedef struct
+{
+ uint32_t dummy;
+} VC_AUDIO_LATENCY_T;
+
// Generic result for a request (VC->HOST)
typedef struct {
int32_t success; // Success value
@@ -108,9 +116,10 @@ typedef struct {
VC_AUDIO_START_T start;
VC_AUDIO_STOP_T stop;
VC_AUDIO_WRITE_T write;
+ VC_AUDIO_LATENCY_T latency;
VC_AUDIO_RESULT_T result;
VC_AUDIO_COMPLETE_T complete;
} u;
} VC_AUDIO_MSG_T;
-#endif // _VC_AUDIO_DEFS_H_
+#endif // _VC_AUDIO_DEFS_H_
\ No newline at end of file
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