through sub_814490C

src/mevent.c

@@ -8,7 +8,7 @@
 #include "task.h"
 #include "decompress.h"
 #include "link.h"
-#include "link_rfu_4.h"
+#include "link_rfu.h"
 #include "unk_815c27c.h"
 #include "util.h"
 #include "script.h"
@@ -134,7 +134,7 @@ u8 sub_8143674(struct MEvent_Str_1 *a0)
 void sub_81436BC(void)
 {
     memset(gDecompressionBuffer, 0, 0x2000);
-    gUnknown_202271A = 0x5502;
+    gLinkType = 0x5502;
     sub_8009804();
     SetSuppressLinkErrorMessage(TRUE);
 }

src/mevent_server.c

@@ -1,2 +1,180 @@
 #include "global.h"
+#include "malloc.h"
+#include "util.h"
+#include "link.h"
+#include "link_rfu.h"
 #include "mevent.h"
+
+extern u16 gBlockRecvBuffer[][128];
+
+struct mevent_srv_sub
+{
+    s32 unk_00;
+    u8 unk_04;
+    u8 unk_05;
+    u16 unk_06;
+    u16 unk_08;
+    u16 unk_0A;
+    u16 unk_0C;
+    u16 unk_0E;
+    u16 unk_10;
+    u16 unk_12;
+    u16 unk_14;
+    void * unk_18;
+    u32 unk_1C;
+    u32 (*unk_20)(struct mevent_srv_sub *);
+    u32 (*unk_24)(struct mevent_srv_sub *);
+};
+
+struct mevent_srv_ish
+{
+    u32 unk_00;
+    u32 unk_04;
+    u32 unk_08;
+    u32 unk_0C;
+    u32 unk_10;
+    void * unk_14;
+    void * unk_18;
+    void * unk_1C;
+    void * unk_20;
+    struct mevent_srv_sub unk_24;
+};
+
+EWRAM_DATA struct mevent_srv_ish * gUnknown_203F3C0 = NULL;
+
+u32 sub_814490C(struct mevent_srv_sub *);
+u32 sub_81449E0(struct mevent_srv_sub *);
+
+u32 sub_8144844(struct mevent_srv_sub * srv)
+{
+    return srv->unk_20(srv);
+}
+
+u32 sub_8144850(struct mevent_srv_sub * srv)
+{
+    return srv->unk_24(srv);
+}
+
+void sub_814485C(struct mevent_srv_sub * srv, u8 a1, u8 a2)
+{
+    srv->unk_04 = a1;
+    srv->unk_05 = a2;
+    srv->unk_00 = 0;
+    srv->unk_12 = 0;
+    srv->unk_14 = 0;
+    srv->unk_10 = 0;
+    srv->unk_0A = 0;
+    srv->unk_0C = 0;
+    srv->unk_08 = 0;
+    srv->unk_1C = 0;
+    srv->unk_18 = NULL;
+    srv->unk_24 = sub_81449E0;
+    srv->unk_20 = sub_814490C;
+}
+
+void sub_8144888(struct mevent_srv_sub * srv, u16 a1, u32 a2, u32 a3)
+{
+    srv->unk_00 = 0;
+    srv->unk_0E = a1;
+    srv->unk_10 = 0;
+    srv->unk_12 = 0;
+    if (a3 != 0)
+        srv->unk_14 = a3;
+    else
+        srv->unk_14 = 0x400;
+    srv->unk_1C = a2;
+}
+
+void sub_81448AC(struct mevent_srv_sub * srv, u16 a1, void * a2)
+{
+    srv->unk_00 = 0;
+    srv->unk_06 = a1;
+    srv->unk_08 = 0;
+    srv->unk_0A = 0;
+    srv->unk_0C = 0;
+    srv->unk_18 = a2;
+}
+
+void sub_81448BC(u32 recv_idx, u16 * dest, size_t size)
+{
+    memcpy(dest, gBlockRecvBuffer[recv_idx], size);
+}
+
+bool32 sub_81448D8(u32 recv_idx)
+{
+    if ((GetBlockReceivedStatus() >> recv_idx) & 1)
+        return TRUE;
+    else
+        return FALSE;
+}
+
+void sub_81448FC(u32 recv_idx)
+{
+    ResetBlockReceivedFlag(recv_idx);
+}
+
+bool32 sub_814490C(struct mevent_srv_sub * srv)
+{
+    u16 buff[4];
+    switch (srv->unk_00)
+    {
+        case 0:
+            if (sub_81448D8(srv->unk_05))
+            {
+                u16 * r4;
+                sub_81448BC(srv->unk_05, (r4 = buff), sizeof(buff));
+                srv->unk_0C = r4[2];
+                srv->unk_0A = r4[1];
+                if (srv->unk_0C > 0x400)
+                {
+                    sub_80FA190();
+                    return FALSE;
+                }
+                else if (srv->unk_06 != buff[0])
+                {
+                    sub_80FA190();
+                    return FALSE;
+                }
+                else
+                {
+                    srv->unk_08 = 0;
+                    sub_81448FC(srv->unk_05);
+                    ++srv->unk_00;
+                }
+            }
+            break;
+        case 1:
+            if (sub_81448D8(srv->unk_05))
+            {
+                size_t r3 = srv->unk_08 * 252;
+                if (srv->unk_0C - r3 <= 252)
+                {
+                    sub_81448BC(srv->unk_05, srv->unk_18 + r3, srv->unk_0C - r3);
+                    ++srv->unk_08;
+                    ++srv->unk_00;
+                }
+                else
+                {
+                    sub_81448BC(srv->unk_05, srv->unk_18 + r3, 252);
+                    ++srv->unk_08;
+                }
+                sub_81448FC(srv->unk_05);
+            }
+            break;
+        case 2:
+            if (CalcCRC16WithTable(srv->unk_18, srv->unk_0C) != srv->unk_0A)
+            {
+                sub_80FA190();
+                return FALSE;
+            }
+            else
+            {
+                srv->unk_00 = 0;
+                return TRUE;
+            }
+            break;
+
+    }
+
+    return FALSE;
+}