arm7: decompile SND_main

7 files changed, 166 insertions, 1 deletions

diff --git a/arm7/lib/include/SND.h b/arm7/lib/include/SND.h
new file mode 100644
index 00000000..69db1a16
--- /dev/null
+++ b/arm7/lib/include/SND.h
@@ -0,0 +1,10 @@
+#ifndef GUARD_SND_H
+#define GUARD_SND_H
+
+#include "nitro/types.h"
+
+void SND_Enable(void);
+void SND_SetOutputSelector(u8 leftOutputFrom, u8 rightOutputFrom, u8 outputCh1ToMixer, u8 outputCh3ToMixer);
+void SND_SetMasterVolume(u8 vol);
+
+#endif //GUARD_SND_H
diff --git a/arm7/lib/include/SND_command.h b/arm7/lib/include/SND_command.h
new file mode 100644
index 00000000..ea5452b9
--- /dev/null
+++ b/arm7/lib/include/SND_command.h
@@ -0,0 +1,7 @@
+#ifndef GUARD_SND_COMMAND_H
+#define GUARD_SND_COMMAND_H
+
+void SND_CommandInit(void);
+void SND_CommandProc(void);
+
+#endif //GUARD_SND_COMMAND_H
diff --git a/arm7/lib/include/SND_exChannel.h b/arm7/lib/include/SND_exChannel.h
index b9545435..976d2786 100644
--- a/arm7/lib/include/SND_exChannel.h
+++ b/arm7/lib/include/SND_exChannel.h
@@ -1,8 +1,11 @@
 #ifndef GUARD_SND_EXCHANNEL_H
 #define GUARD_SND_EXCHANNEL_H
 
-#include "global.h"
+#include "nitro/types.h"
 
+void SND_ExChannelInit(void);
 BOOL SND_IsChannelActive(s32 idx);
+void SND_UpdateExChannel(void);
+void SND_ExChannelMain(BOOL update);
 
 #endif //GUARD_SND_EXCHANNEL_H
diff --git a/arm7/lib/include/SND_main.h b/arm7/lib/include/SND_main.h
new file mode 100644
index 00000000..eba3ff44
--- /dev/null
+++ b/arm7/lib/include/SND_main.h
@@ -0,0 +1,16 @@
+#ifndef GUARD_SND_MAIN_H
+#define GUARD_SND_MAIN_H
+
+#include "nitro/types.h"
+
+void SND_Init(u32 priority);
+void SND_CreateThread(u32 priority);
+void SND_InitIntervalTimer(void);
+void SND_StartIntervalTimer(void);
+void SND_StopIntervalTimer(void);
+u32 SND_WaitForIntervalTimer(void);
+void SND_SendWakeupMessage(void);
+void SNDi_LockMutex(void);
+void SNDi_UnlockMutex(void);
+
+#endif //GUARD_SND_MAIN_H
diff --git a/arm7/lib/include/SND_seq.h b/arm7/lib/include/SND_seq.h
new file mode 100644
index 00000000..642cff3e
--- /dev/null
+++ b/arm7/lib/include/SND_seq.h
@@ -0,0 +1,7 @@
+#ifndef GUARD_SND_SEQ_H
+#define GUARD_SND_SEQ_H
+
+void SND_SeqInit(void);
+void SND_SeqMain(BOOL update);
+
+#endif //GUARD_SND_SEQ_H
diff --git a/arm7/lib/include/SND_util.h b/arm7/lib/include/SND_util.h
new file mode 100644
index 00000000..babf2a87
--- /dev/null
+++ b/arm7/lib/include/SND_util.h
@@ -0,0 +1,8 @@
+#ifndef GUARD_SND_UTIL_H
+#define GUARD_SND_UTIL_H
+
+#include "nitro/types.h"
+
+u32 SND_CalcRandom(void);
+
+#endif //GUARD_SND_UTIL_H
diff --git a/arm7/lib/src/SND_main.c b/arm7/lib/src/SND_main.c
new file mode 100644
index 00000000..96dcdc78
--- /dev/null
+++ b/arm7/lib/src/SND_main.c
@@ -0,0 +1,114 @@
+#include "SND_main.h"
+
+#include "global.h"
+
+#include "SND.h"
+#include "SND_alarm.h"
+#include "SND_capture.h"
+#include "SND_command.h"
+#include "SND_exChannel.h"
+#include "SND_seq.h"
+#include "SND_util.h"
+#include "SND_work.h"
+
+#include "OS_alarm.h"
+#include "OS_thread.h"
+#include "OS_message.h"
+#include "OS_tick.h"
+
+static void FUN_037fc330(void *);
+static void SndThread(void *);
+
+u8 sThreadStack[0x400];
+OSThread sThread;
+OSAlarm sAlarm;
+OSMessageQueue sMessageQueue;
+OSMessage sMessageArray[8];
+u32 sInitialized = 0;
+
+void SND_Init(u32 priority) {
+    if (sInitialized == 0) {
+        sInitialized = 1;
+        SND_CommandInit();
+        SND_CreateThread(priority);
+    }
+}
+
+void SND_CreateThread(u32 priority) {
+    OS_CreateThread(&sThread, SndThread, NULL, &sThreadStack[sizeof(sThreadStack)], sizeof(sThreadStack), priority);
+    OS_WakeupThreadDirect(&sThread);
+}
+
+void SND_InitIntervalTimer(void) {
+    OS_InitMessageQueue(&sMessageQueue, sMessageArray, 8);
+    OS_CreateAlarm(&sAlarm);
+}
+
+void SND_StartIntervalTimer(void) {
+    OSTick tick = OS_GetTick();
+    OS_SetPeriodicAlarm(&sAlarm, tick + 0x10000, 2728, FUN_037fc330, NULL);
+}
+
+void SND_StopIntervalTimer(void) {
+    OS_CancelAlarm(&sAlarm);
+}
+
+u32 SND_WaitForIntervalTimer(void) {
+    OSMessage result;
+    (void)OS_ReceiveMessage(&sMessageQueue, &result, 1);
+    return (u32)result;
+}
+
+void SND_SendWakeupMessage(void) {
+    (void)OS_SendMessage(&sMessageQueue, (OSMessage)2, 0);
+}
+
+void SNDi_LockMutex(void) {
+    // nothing
+}
+
+void SNDi_UnlockMutex(void) {
+    // nothing
+}
+
+static void FUN_037fc330(void *arg) {
+    (void)arg;
+    (void)OS_SendMessage(&sMessageQueue, (OSMessage)1, 0);
+}
+
+static void SndThread(void *arg) {
+    (void)arg;
+
+    SND_InitIntervalTimer();
+    SND_ExChannelInit();
+    SND_SeqInit();
+    SND_AlarmInit();
+    SND_Enable();
+    SND_SetOutputSelector(0, 0, 0, 0);
+    SND_SetMasterVolume(0x7F);
+    SND_StartIntervalTimer();
+
+    while (1) {
+        BOOL update = FALSE;
+        
+        u32 result = SND_WaitForIntervalTimer();
+
+        switch (result) {
+        case 2:
+            update = FALSE;
+            break;
+        case 1:
+            update = TRUE;
+            break;
+        }
+
+        SND_UpdateExChannel();
+        SND_CommandProc();
+
+        SND_SeqMain(update);
+        SND_ExChannelMain(update);
+
+        SND_UpdateSharedWork();
+        (void)SND_CalcRandom();
+    }
+}