From 69ee2f97c539ce65ea9488a7779276744d4df311 Mon Sep 17 00:00:00 2001
From: fincs <fincs.alt1@gmail.com>
Date: Mon, 5 Jan 2015 19:31:15 +0100
Subject: [PATCH] Add CSND_AcquireCapUnit/CSND_ReleaseCapUnit

---
 libctru/include/3ds/services/csnd.h |  3 +++
 libctru/source/services/csnd.c      | 27 +++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/libctru/include/3ds/services/csnd.h b/libctru/include/3ds/services/csnd.h
index e0e2406..786c09d 100644
--- a/libctru/include/3ds/services/csnd.h
+++ b/libctru/include/3ds/services/csnd.h
@@ -72,6 +72,9 @@ extern vu32* csndSharedMem;
 extern u32 csndSharedMemSize;
 extern u32 csndChannels; // Bitmask of channels that are allowed for usage
 
+Result CSND_AcquireCapUnit(u32* capUnit);
+Result CSND_ReleaseCapUnit(u32 capUnit);
+
 Result csndInit(void);
 Result csndExit(void);
 
diff --git a/libctru/source/services/csnd.c b/libctru/source/services/csnd.c
index e19a617..25b788f 100644
--- a/libctru/source/services/csnd.c
+++ b/libctru/source/services/csnd.c
@@ -77,6 +77,33 @@ static Result CSND_ReleaseSoundChannels(void)
 	return (Result)cmdbuf[1];
 }
 
+Result CSND_AcquireCapUnit(u32* capUnit)
+{
+	Result ret=0;
+	u32 *cmdbuf = getThreadCommandBuffer();
+
+	cmdbuf[0] = 0x00070000;
+
+	if((ret = svcSendSyncRequest(csndHandle))!=0)return ret;
+
+	*capUnit = cmdbuf[2];
+
+	return (Result)cmdbuf[1];
+}
+
+Result CSND_ReleaseCapUnit(u32 capUnit)
+{
+	Result ret=0;
+	u32 *cmdbuf = getThreadCommandBuffer();
+
+	cmdbuf[0] = 0x00080040;
+	cmdbuf[1] = capUnit;
+
+	if((ret = svcSendSyncRequest(csndHandle))!=0)return ret;
+
+	return (Result)cmdbuf[1];
+}
+
 Result csndInit(void)
 {
 	Result ret=0;
-- 
2.39.5