From f0553720d6ebd0215f7c9c260195e50d699ecdfb Mon Sep 17 00:00:00 2001
From: Maxim Poliakovski <maximumspatium@googlemail.com>
Date: Wed, 20 Jul 2022 01:36:45 +0200
Subject: [PATCH] Catalyst: factory test control.

---
 devices/ioctrl/grandcentral.cpp | 5 ++++-
 devices/ioctrl/macio.h          | 2 ++
 machines/machinecatalyst.cpp    | 2 ++
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/devices/ioctrl/grandcentral.cpp b/devices/ioctrl/grandcentral.cpp
index 42829c2..05e3e1d 100644
--- a/devices/ioctrl/grandcentral.cpp
+++ b/devices/ioctrl/grandcentral.cpp
@@ -74,6 +74,9 @@ GrandCentral::GrandCentral() : PCIDevice("mac-io/grandcentral"), InterruptCtrl()
 
     // connect floppy disk HW
     this->swim3 = dynamic_cast<Swim3::Swim3Ctrl*>(gMachineObj->get_comp_by_name("Swim3"));
+
+    // set EMMO pin status (active low)
+    this->emmo_pin = GET_BIN_PROP("emmo") ^ 1;
 }
 
 void GrandCentral::notify_bar_change(int bar_num)
@@ -116,7 +119,7 @@ uint32_t GrandCentral::read(uint32_t reg_start, uint32_t offset, int size)
         case 7: // VIA-CUDA
             return this->viacuda->read((offset >> 9) & 0xF);
         case 0xA: // Board register 1 (IOBus dev #1)
-            return BYTESWAP_32(0x100);
+            return BYTESWAP_32(this->emmo_pin << 8);
         case 0xF: // NVRAM Data (IOBus dev #6)
             return this->nvram->read_byte(
                 (this->nvram_addr_hi << 5) + ((offset >> 4) & 0x1F));
diff --git a/devices/ioctrl/macio.h b/devices/ioctrl/macio.h
index c76fb04..7ad2c1e 100644
--- a/devices/ioctrl/macio.h
+++ b/devices/ioctrl/macio.h
@@ -109,6 +109,8 @@ protected:
 private:
     uint32_t    base_addr = 0;
 
+    uint8_t     emmo_pin; // factory tester status, active low
+
     // interrupt state
     uint32_t    int_mask   = 0;
     uint32_t    int_levels = 0;
diff --git a/machines/machinecatalyst.cpp b/machines/machinecatalyst.cpp
index 63240ef..7b87410 100644
--- a/machines/machinecatalyst.cpp
+++ b/machines/machinecatalyst.cpp
@@ -81,6 +81,8 @@ static const PropMap pm7200_settings = {
         new IntProperty( 1, vector<uint32_t>({1, 2, 4}))},
     {"mon_id",
         new StrProperty("HiRes12-14in")},
+    {"emmo",
+        new BinProperty(0)},
 };
 
 static vector<string> pm7200_devices = {