From 6932fa397ba9b9cc99ec248602f43aba8e1f86c9 Mon Sep 17 00:00:00 2001
From: Rafaël Carré <rafael.carre@gmail.com>
Date: Sat, 15 Aug 2009 15:02:51 +0000
Subject: Sansa Clip & m200v4 : calls backlight_hold_changed() when hold button
 is toggled

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22323 a1c6a512-1295-4272-9138-f99709370657
---
 .../target/arm/as3525/sansa-clip/button-clip.c     | 19 ++++++++++++++++-
 .../target/arm/as3525/sansa-m200v4/button-m200v4.c | 24 ++++++++++++++++++----
 2 files changed, 38 insertions(+), 5 deletions(-)

diff --git a/firmware/target/arm/as3525/sansa-clip/button-clip.c b/firmware/target/arm/as3525/sansa-clip/button-clip.c
index 0d4e3a6306..99a68a506d 100644
--- a/firmware/target/arm/as3525/sansa-clip/button-clip.c
+++ b/firmware/target/arm/as3525/sansa-clip/button-clip.c
@@ -22,6 +22,9 @@
  ****************************************************************************/
 #include "button-target.h"
 #include "as3525.h"
+#ifndef BOOTLOADER
+#include "backlight.h"
+#endif
 
 /*  The Sansa Clip uses a button matrix that is scanned by selecting one of
     three rows and reading back the button states from the columns.
@@ -124,5 +127,19 @@ int button_read_device(void)
 
 bool button_hold(void)
 {
-    return (GPIOA_PIN(3) != 0);
+#ifndef BOOTLOADER
+    static bool hold_button_old = false;
+#endif
+    bool hold_button = (GPIOA_PIN(3) != 0);
+
+#ifndef BOOTLOADER
+    /* light handling */
+    if (hold_button != hold_button_old)
+    {
+        hold_button_old = hold_button;
+        backlight_hold_changed(hold_button);
+    }
+#endif /* BOOTLOADER */
+
+    return hold_button;
 }
diff --git a/firmware/target/arm/as3525/sansa-m200v4/button-m200v4.c b/firmware/target/arm/as3525/sansa-m200v4/button-m200v4.c
index 5220fc4925..af57f97051 100644
--- a/firmware/target/arm/as3525/sansa-m200v4/button-m200v4.c
+++ b/firmware/target/arm/as3525/sansa-m200v4/button-m200v4.c
@@ -23,6 +23,10 @@
 #include "cpu.h"
 #include "button.h"
 
+#ifndef BOOTLOADER
+#include "backlight.h"
+#endif
+
 void button_init_device(void)
 {
     GPIOA_DIR &= ~((1<<3) | (1<<2) | (1<<1) | (1<<0));  /* A3-A0 is input */
@@ -89,12 +93,24 @@ int button_read_device(void)
 
 bool button_hold(void)
 {
-    bool ret = false;
+#ifndef BOOTLOADER
+    static bool hold_button_old = false;
+#endif
+    bool hold_button = false;
     
     GPIOA_PIN(6) = (1<<6);
     if (GPIOA_PIN(2))
-        ret = true;
+        hold_button = true;
     GPIOA_PIN(6) = 0x00; 
-    
-    return ret;
+
+#ifndef BOOTLOADER
+    /* light handling */
+    if (hold_button != hold_button_old)
+    {
+        hold_button_old = hold_button;
+        backlight_hold_changed(hold_button);
+    }
+#endif /* BOOTLOADER */
+
+    return hold_button;
 }
-- 
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