From 943006daefeca420749768a4d4e9810a258f2b92 Mon Sep 17 00:00:00 2001
From: Perry Hung <iperry@gmail.com>
Date: Tue, 21 Sep 2010 20:22:17 -0400
Subject: Add PWM_OPEN_DRAIN option to pinMode()

Allow for alternate function open drain output mode to be accessed
through the wirish interface. This allows for open drain to be used on
PWM pins.
---
 wirish/io.h             | 3 ++-
 wirish/wirish_digital.c | 3 +++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/wirish/io.h b/wirish/io.h
index e779604..4aa1eef 100644
--- a/wirish/io.h
+++ b/wirish/io.h
@@ -47,7 +47,8 @@ typedef enum WiringPinMode {
     INPUT_PULLUP,
     INPUT_PULLDOWN,
     INPUT_FLOATING,
-    PWM
+    PWM,
+    PWM_OPEN_DRAIN,
 } WiringPinMode;
 
 
diff --git a/wirish/wirish_digital.c b/wirish/wirish_digital.c
index c93c786..9dd46ed 100644
--- a/wirish/wirish_digital.c
+++ b/wirish/wirish_digital.c
@@ -58,6 +58,9 @@ void pinMode(uint8 pin, WiringPinMode mode) {
     case PWM:
         outputMode = GPIO_MODE_AF_OUTPUT_PP;
         break;
+    case PWM_OPEN_DRAIN:
+        outputMode = GPIO_MODE_AF_OUTPUT_OD;
+        break;
     default:
         ASSERT(0);
         return;
-- 
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