From c11a68aee2f0993777d72212241f91ecc99911af Mon Sep 17 00:00:00 2001
From: Linus Nielsen Feltzing <linus@haxx.se>
Date: Thu, 9 Mar 2006 07:23:07 +0000
Subject: iAudio X5: Remote control buttons

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8968 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/drivers/button.c | 43 ++++++++++++++++++++++++++++++++++++++++---
 firmware/export/button.h  |  7 ++++++-
 2 files changed, 46 insertions(+), 4 deletions(-)

diff --git a/firmware/drivers/button.c b/firmware/drivers/button.c
index 573d57fd0a..08cc23ce3b 100644
--- a/firmware/drivers/button.c
+++ b/firmware/drivers/button.c
@@ -582,9 +582,9 @@ void button_init(void)
     GPIO1_ENABLE &= ~0x00100060;
     GPIO1_FUNCTION |= 0x00100062;
 #elif CONFIG_KEYPAD == IAUDIO_X5_PAD
-    /* Hold switch */
-    GPIO_FUNCTION |= 0x08000000;
-    GPIO_ENABLE &= ~0x08000000;
+    /* Power, Remote Play & Hold switch */
+    GPIO_FUNCTION |= 0x0e000000;
+    GPIO_ENABLE &= ~0x0e000000;
 
 #elif CONFIG_KEYPAD == RECORDER_PAD
     /* Set PB4 and PB8 as input pins */
@@ -1167,6 +1167,43 @@ static int button_read(void)
                     if(data < 0xf0)
                         btn = BUTTON_UP;
     }    
+
+    /* remote buttons */
+    data = adc_scan(ADC_REMOTE);
+    if(data < 0x17)
+        remote_hold_button = true;
+
+    if(!remote_hold_button)
+    {
+        if(data < 0x7a)
+            if(data < 0x41)
+                btn = BUTTON_RC_REW;
+            else
+                if(data < 0x61)
+                    btn = BUTTON_RC_FF;
+                else
+                    btn = BUTTON_RC_MODE;
+        else
+            if(data < 0xb4)
+                if(data < 0x96)
+                    btn = BUTTON_RC_REC;
+                else
+                    btn = BUTTON_RC_MENU;
+            else
+                if(data < 0xd1)
+                    btn = BUTTON_RC_VOL_UP;
+                else
+                    if(data < 0xee)
+                        btn = BUTTON_RC_VOL_DOWN;
+    }
+    
+    data = GPIO_READ;
+    if (!(data & 0x04000000))
+        btn |= BUTTON_POWER;
+
+    if (!(data & 0x02000000))
+        btn |= BUTTON_RC_PLAY;
+
 #endif /* CONFIG_KEYPAD */
 
 
diff --git a/firmware/export/button.h b/firmware/export/button.h
index 12eab9ff80..a1590ec353 100644
--- a/firmware/export/button.h
+++ b/firmware/export/button.h
@@ -196,7 +196,12 @@ bool button_hold(void);
 #define BUTTON_DOWN           0x0010
 #define BUTTON_SELECT         0x0020
 
-#define BUTTON_RC_REC         (BUTTON_REMOTE | 0x00400000)
+#define BUTTON_RC_PLAY        (BUTTON_REMOTE | 0x00010000)
+#define BUTTON_RC_REW         (BUTTON_REMOTE | 0x00020000)
+#define BUTTON_RC_FF          (BUTTON_REMOTE | 0x00040000)
+#define BUTTON_RC_MODE        (BUTTON_REMOTE | 0x00080000)
+#define BUTTON_RC_REC         (BUTTON_REMOTE | 0x00100000)
+#define BUTTON_RC_MENU        (BUTTON_REMOTE | 0x00200000)
 
 #elif CONFIG_KEYPAD == GIGABEAT_PAD
 
-- 
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