From 3b85868fe73ff86ae7aa79d492236aab22e8f6f9 Mon Sep 17 00:00:00 2001
From: skarg <skarg@1e814d3a-8a88-4260-be86-c0dc25669c1e>
Date: Mon, 26 Nov 2012 02:12:37 +0000
Subject: [PATCH] Modified the BDK port for version 4 hardware layout

---
 bacnet-stack/ports/bdk-atxx4-mstp/input.c | 24 ++++++++++++++++++++++-
 bacnet-stack/ports/bdk-atxx4-mstp/input.h |  3 ++-
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/bacnet-stack/ports/bdk-atxx4-mstp/input.c b/bacnet-stack/ports/bdk-atxx4-mstp/input.c
index 58932115..1fb920c2 100644
--- a/bacnet-stack/ports/bdk-atxx4-mstp/input.c
+++ b/bacnet-stack/ports/bdk-atxx4-mstp/input.c
@@ -29,6 +29,10 @@
 /* me */
 #include "input.h"
 
+#ifndef BDK_VERSION
+#define BDK_VERSION 4
+#endif
+
 static uint8_t Address_Switch;
 static uint8_t Buttons;
 static struct itimer Debounce_Timer;
@@ -96,8 +100,14 @@ void input_task(
             Address_Switch = old_address;
         }
         old_address = value;
+#if (BDK_VERSION==4)
+        /* pins used are PB3, PB2, PB1 */
+        value = BITMASK_CHECK(PINB, 0x0E);
+        value >>= 1;
+#else
         /* pins used are PB4, PB3, PB2, PB1, PB0 */
         value = BITMASK_CHECK(PINB, 0x1F);
+#endif
         if (value == old_buttons) {
             /* stable value */
             Buttons = old_buttons;
@@ -115,6 +125,12 @@ uint8_t input_address(
     return Address_Switch;
 }
 
+uint8_t input_rotary_value(
+    uint8_t index)
+{
+    return Buttons;
+}
+
 bool input_button_value(
     uint8_t index)
 {
@@ -163,10 +179,16 @@ void input_init(
     BIT_SET(PORTA, PORTA4);
     BIT_SET(PORTA, PORTA5);
     BIT_SET(PORTA, PORTA6);
-    /* configure the port pins for binary inputs */
+    /* configure the port pins for rotary switch inputs */
+#if (BDK_VERSION==4)
+    BIT_CLEAR(DDRB, DDB1);
+    BIT_CLEAR(DDRB, DDB2);
+    BIT_CLEAR(DDRB, DDB3);
+#else
     BIT_CLEAR(DDRB, DDB1);
     BIT_CLEAR(DDRB, DDB2);
     BIT_CLEAR(DDRB, DDB3);
     BIT_CLEAR(DDRB, DDB4);
+#endif
     timer_interval_start(&Debounce_Timer, 30);
 }
diff --git a/bacnet-stack/ports/bdk-atxx4-mstp/input.h b/bacnet-stack/ports/bdk-atxx4-mstp/input.h
index bb8ba7d5..19c30e5a 100644
--- a/bacnet-stack/ports/bdk-atxx4-mstp/input.h
+++ b/bacnet-stack/ports/bdk-atxx4-mstp/input.h
@@ -38,7 +38,8 @@ extern "C" {
         void);
     bool input_button_value(
         uint8_t index);
-
+    uint8_t input_rotary_value(
+        uint8_t index);
 #ifdef __cplusplus
 }
 #endif /* __cplusplus */