hocclk bpmp: communication

Source/hoc-clk/bpmpfw/source/main.cpp

@@ -1,12 +1,47 @@
+/*
+ * Copyright (c) Souldbminer, Lightos and Horizon OC Contributors
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
 #include <stdio.h>
+#include <string.h>
 
 #include "libc_platform.hpp"
 #include "regs.hpp"
 
+#include <hocclk/bpmp.h>
+
+namespace {
+
+    HocClkBpmpSharedInfo &SharedInfo() {
+        return *reinterpret_cast<HocClkBpmpSharedInfo *>(WorkRamStart);
+    }
+
+} // namespace
+
 extern "C" void main() {
     InitializeLibc();
 
     printf("[hoc-bpmpfw] Starting bpmpfw\n");
 
-    for (;;);
+    HocClkBpmpSharedInfo &info = SharedInfo();
+    memset(&info, 0, sizeof(info));
+    info.status = 0;
+    info.magic = HOCCLK_BPMP_MAGIC; // written last
+
+    for (;;) {
+
+    }
 }