From d12ea8a27386408a0b6b1bcb3dbf40a311058190 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mat=C3=ADas=20Israelson?=
 <57065102+israpps@users.noreply.github.com>
Date: Mon, 7 Apr 2025 11:48:08 -0300
Subject: [PATCH] add implementation of arcade DAEMON.IRX

---
 iop/security/daemon/Makefile          | 21 +++++++++++++++++
 iop/security/daemon/README.MD         | 11 +++++++++
 iop/security/daemon/src/daemon.c      | 34 +++++++++++++++++++++++++++
 iop/security/daemon/src/imports.lst   | 18 ++++++++++++++
 iop/security/daemon/src/irx_imports.h |  6 +++++
 5 files changed, 90 insertions(+)
 create mode 100644 iop/security/daemon/Makefile
 create mode 100644 iop/security/daemon/README.MD
 create mode 100644 iop/security/daemon/src/daemon.c
 create mode 100644 iop/security/daemon/src/imports.lst
 create mode 100644 iop/security/daemon/src/irx_imports.h

diff --git a/iop/security/daemon/Makefile b/iop/security/daemon/Makefile
new file mode 100644
index 00000000000..9b492943d2e
--- /dev/null
+++ b/iop/security/daemon/Makefile
@@ -0,0 +1,21 @@
+# _____     ___ ____     ___ ____
+#  ____|   |    ____|   |        | |____|
+# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
+#-----------------------------------------------------------------------
+# Copyright 2001-2004, ps2dev - http://www.ps2dev.org
+# Licenced under Academic Free License version 2.0
+# Review ps2sdk README & LICENSE files for further details.
+
+
+IOP_INCS += \
+	-I$(PS2SDKSRC)/iop/system/thbase/include \
+	-I$(PS2SDKSRC)/iop/memorycard/mcman/include \
+	-I$(PS2SDKSRC)/iop/system/stdio/include \
+	-I$(PS2SDKSRC)/iop/system/intrman/include
+
+IOP_OBJS = daemon.o imports.o
+
+include $(PS2SDKSRC)/Defs.make
+include $(PS2SDKSRC)/iop/Rules.bin.make
+include $(PS2SDKSRC)/iop/Rules.make
+include $(PS2SDKSRC)/iop/Rules.release
diff --git a/iop/security/daemon/README.MD b/iop/security/daemon/README.MD
new file mode 100644
index 00000000000..5ec2358292c
--- /dev/null
+++ b/iop/security/daemon/README.MD
@@ -0,0 +1,11 @@
+# Daemon (aka: sec_checker)
+
+This module, found on the bootrom of the Arcade PS2s (COH-H models and derivative units) is in charge of checking the security dongle status.
+
+Arcade SYSCON has a 3 to 5 minutes countdown (time may depend on the model) to reset the console.
+
+Arcade Mechacon resets this countdown when the secrAuthDongle routine is successfully completed.
+
+This module setups an IOP thread that calls mcdetectcard2 (DONGLEMAN EXPORT:21) once every minute. effectively keeping the watchdog at bay, but also making access to `mc0:/` rather unstable.
+
+This module is placed here just for hystorical purposes and preservation. there is (as of today) no reason to use a homebrew implementation in favor of `rom0:DAEMON`
diff --git a/iop/security/daemon/src/daemon.c b/iop/security/daemon/src/daemon.c
new file mode 100644
index 00000000000..b5bcec0b270
--- /dev/null
+++ b/iop/security/daemon/src/daemon.c
@@ -0,0 +1,34 @@
+#include "irx_imports.h"
+
+IRX_ID("Sec_Checker", 0x1, 0x1)
+
+void sec_checker(void) {
+    int x;
+    printf("check card routine start\n");
+    do {
+        McDetectCard2(0,0);
+        x = 0x3c;
+        while (0 < x) {
+            DelayThread(1000000);
+            x--;
+        }
+    } while ( 1 );
+
+}
+
+//Original debug symbol: `start`
+int _start() {
+    iop_thread_t sec_thread;
+    int thid, bVar1;
+    CpuEnableIntr();
+    sec_thread.attr = TH_C;
+    sec_thread.thread = sec_checker;
+    sec_thread.priority = LOWEST_PRIORITY;
+    sec_thread.stacksize = 0x800;
+    sec_thread.option = 0;
+    thid = CreateThread(&sec_thread);
+    bVar1 = thid < 1;
+    if (!bVar1)
+    StartThread(thid,0);
+    return bVar1;
+}
diff --git a/iop/security/daemon/src/imports.lst b/iop/security/daemon/src/imports.lst
new file mode 100644
index 00000000000..18a37bbbc35
--- /dev/null
+++ b/iop/security/daemon/src/imports.lst
@@ -0,0 +1,18 @@
+xmcman_IMPORTS_start
+//Debug Symbol: mciConfInsert
+I_McDetectCard2
+xmcman_IMPORTS_end
+
+intrman_IMPORTS_start
+I_CpuEnableIntr
+intrman_IMPORTS_end
+
+stdio_IMPORTS_start
+I_printf
+stdio_IMPORTS_end
+
+thbase_IMPORTS_start
+I_CreateThread
+I_StartThread
+I_DelayThread
+thbase_IMPORTS_end
diff --git a/iop/security/daemon/src/irx_imports.h b/iop/security/daemon/src/irx_imports.h
new file mode 100644
index 00000000000..481a8a1cb54
--- /dev/null
+++ b/iop/security/daemon/src/irx_imports.h
@@ -0,0 +1,6 @@
+#include <irx.h>
+
+#include <mcman.h>
+#include <intrman.h>
+#include <stdio.h>
+#include <thbase.h>