From 537c7546f946d266e55fdbce03558352a3342908 Mon Sep 17 00:00:00 2001
From: Linus Nielsen Feltzing <linus@haxx.se>
Date: Tue, 26 Sep 2006 10:03:56 +0000
Subject: Patch #4899 by Robert Keevil - Automatic pause on iPod when removing
 the headphones

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11057 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/drivers/button.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'firmware/drivers/button.c')

diff --git a/firmware/drivers/button.c b/firmware/drivers/button.c
index 5add6cb817..0042d9b8eb 100644
--- a/firmware/drivers/button.c
+++ b/firmware/drivers/button.c
@@ -92,6 +92,10 @@ static bool remote_button_hold_only(void);
 int int_btn = BUTTON_NONE;
 #endif
 
+#ifdef HAVE_HEADPHONE_DETECTION
+bool phones_present = false;
+#endif
+
 #if (CONFIG_KEYPAD == IPOD_4G_PAD) && !defined(IPOD_MINI)
 static void opto_i2c_init(void)
 {
@@ -433,6 +437,23 @@ static void button_tick(void)
     }
 #endif
 
+#ifdef HAVE_HEADPHONE_DETECTION
+    if ( headphones_inserted() )
+    {
+        if (! phones_present )
+        {
+            queue_post(&button_queue, SYS_PHONE_PLUGGED, NULL);
+            phones_present = true;
+        }
+    } else {
+        if ( phones_present )
+        {
+            queue_post(&button_queue, SYS_PHONE_UNPLUGGED, NULL);
+            phones_present = false;
+        }
+    }
+#endif
+
     btn = button_read();
 
     /* Find out if a key has been released */
@@ -1327,3 +1348,10 @@ void button_clear_queue(void)
     queue_clear(&button_queue);
 }
 
+#ifdef HAVE_HEADPHONE_DETECTION
+bool headphones_inserted(void)
+{
+    return (GPIOA_INPUT_VAL & 0x80)?true:false;
+}
+#endif
+
-- 
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