Integrate 3ds_pxi and 3ds_sm

sysmodules/pxi/source/common.h

@@ -0,0 +1,94 @@
+/*
+common.h:
+    Common types and global variables.
+
+(c) TuxSH, 2016-2017
+This is part of 3ds_pxi, which is licensed under the MIT license (see LICENSE for details).
+*/
+
+#pragma once
+
+#include <3ds.h>
+
+typedef enum SessionState
+{
+    STATE_IDLE = 0,
+    STATE_RECEIVED_FROM_ARM11 = 1,
+    STATE_SENT_TO_ARM9 = 2,
+    STATE_RECEIVED_FROM_ARM9 = 3
+} SessionState;
+
+typedef struct SessionData
+{
+    SessionState state;
+    u32 buffer[0x100/4];
+
+    Handle handle;
+    u32 usedStaticBuffers;
+
+    RecursiveLock lock;
+} SessionData;
+
+#define NB_STATIC_BUFFERS 21
+
+typedef struct SessionManager
+{
+    Handle sendAllBuffersToArm9Event, replySemaphore, PXISRV11CommandReceivedEvent, PXISRV11ReplySentEvent;
+    u32 latest_PXI_MC5_val, pendingArm9Commands;
+    u32 receivedServiceId;
+    RecursiveLock senderLock;
+    bool sendingDisabled;
+    SessionData sessionData[10];
+
+    u32 currentlyProvidedStaticBuffers, freeStaticBuffers;
+} SessionManager;
+
+//Page alignment is mandatory there
+extern u32 ALIGN(0x1000) staticBuffers[NB_STATIC_BUFFERS][0x1000/4];
+
+extern Handle PXISyncInterrupt, PXITransferMutex;
+extern Handle terminationRequestedEvent;
+extern bool shouldTerminate;
+extern SessionManager sessionManager;
+
+extern const u32 nbStaticBuffersByService[10];
+
+static inline Result assertSuccess(Result res)
+{
+    if(R_FAILED(res)) svcBreak(USERBREAK_PANIC);
+    return res;
+}
+
+static inline s32 getMSBPosition(u32 val)
+{
+    return 31 - (s32) __builtin_clz(val);
+}
+
+static inline s32 getLSBPosition(u32 val)
+{
+    return __builtin_ffs(val) - 1;
+}
+
+static inline u32 clearMSBs(u32 val, u32 nb)
+{
+    for(u32 i = 0; i < nb; i++)
+    {
+        s32 pos = getMSBPosition(val);
+        if(pos == -1) break;
+        val &= ~(1 << pos);
+    }
+
+    return val;
+}
+
+static inline u32 countNbBitsSet(u32 val)
+{
+    u32 nb = 0;
+    while(val != 0)
+    {
+        val = clearMSBs(val, 1);
+        nb++;
+    }
+
+    return nb;
+}