From da3d0ea49437bd76905d8ec528be467ac5d17ea3 Mon Sep 17 00:00:00 2001
From: akuker <akuker@gmail.com>
Date: Sat, 18 Jul 2020 18:00:17 -0500
Subject: [PATCH] Ignore non-SCSI pins

---
 src/raspberrypi/gpiobus.h     | 20 ++++++++++++++++++++
 src/raspberrypi/scsishark.cpp |  3 ++-
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/src/raspberrypi/gpiobus.h b/src/raspberrypi/gpiobus.h
index 3792af4..3e1b844 100644
--- a/src/raspberrypi/gpiobus.h
+++ b/src/raspberrypi/gpiobus.h
@@ -140,6 +140,26 @@
 #define	PIN_IO		25						// IO
 #define	PIN_BSY		26						// BSY
 #define	PIN_SEL		27						// SEL
+
+#define ALL_SCSI_PINS \
+    ((1<<PIN_DT0)|\
+    (1<<PIN_DT1)|\
+    (1<<PIN_DT2)|\
+    (1<<PIN_DT3)|\
+    (1<<PIN_DT4)|\
+    (1<<PIN_DT5)|\
+    (1<<PIN_DT6)|\
+    (1<<PIN_DT7)|\
+    (1<<PIN_DP)|\
+    (1<<PIN_ATN)|\
+    (1<<PIN_RST)|\
+    (1<<PIN_ACK)|\
+    (1<<PIN_REQ)|\
+    (1<<PIN_MSG)|\
+    (1<<PIN_CD)|\
+    (1<<PIN_IO)|\
+    (1<<PIN_BSY)|\
+    (1<<PIN_SEL))
 #endif
 
 #ifdef CONNECT_TYPE_FULLSPEC
diff --git a/src/raspberrypi/scsishark.cpp b/src/raspberrypi/scsishark.cpp
index 561f6d2..eb23257 100644
--- a/src/raspberrypi/scsishark.cpp
+++ b/src/raspberrypi/scsishark.cpp
@@ -1221,10 +1221,11 @@ int main(int argc, char* argv[])
 	bus->SetACT(FALSE);
 
     spdlog::trace("Going into running mode {}", 1);
+    printf("ALL_SCSI_PINS %08X\n",ALL_SCSI_PINS);
 	// Main Loop
 	while (running) {
 		// Work initialization
-		this_sample = bus->Aquire();
+		this_sample = (bus->Aquire() & ALL_SCSI_PINS);
 
 		if(this_sample != prev_sample)
 		{