From c0782fa1ab4b3d250e4cd88ea835bd5d67f570f0 Mon Sep 17 00:00:00 2001
From: Domonoky <Domonoky@a1c6a512-1295-4272-9138-f99709370657>
Date: Sat, 25 Oct 2008 15:57:18 +0000
Subject: [PATCH] fill in button and backlight functions for m200 "v2"

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18874 a1c6a512-1295-4272-9138-f99709370657
---
 .../arm/as3525/sansa-m200v2/backlight-target.h     |  3 ++
 .../target/arm/as3525/sansa-m200v2/button-m200v2.c | 60 ++++++++++++++++++++--
 .../target/arm/as3525/sansa-m200v2/button-target.h |  3 +-
 3 files changed, 60 insertions(+), 6 deletions(-)

diff --git a/firmware/target/arm/as3525/sansa-m200v2/backlight-target.h b/firmware/target/arm/as3525/sansa-m200v2/backlight-target.h
index 9533d0a6b..50404f709 100644
--- a/firmware/target/arm/as3525/sansa-m200v2/backlight-target.h
+++ b/firmware/target/arm/as3525/sansa-m200v2/backlight-target.h
@@ -23,15 +23,18 @@
 
 static inline bool _backlight_init(void)
 {
+    GPIOD_DIR |= (1<<1);
     return true;
 }
 
 static inline void _backlight_on(void)
 {
+    GPIOD_PIN(1) = (1<<1);
 }
 
 static inline void _backlight_off(void)
 {
+    GPIOD_PIN(1) = 0x00;
 }
 
 #endif
diff --git a/firmware/target/arm/as3525/sansa-m200v2/button-m200v2.c b/firmware/target/arm/as3525/sansa-m200v2/button-m200v2.c
index cd31d0672..c5d6c4941 100644
--- a/firmware/target/arm/as3525/sansa-m200v2/button-m200v2.c
+++ b/firmware/target/arm/as3525/sansa-m200v2/button-m200v2.c
@@ -26,18 +26,68 @@
 
 void button_init_device(void)
 {
-
+    GPIOA_DIR &= ~((1<<3) | (1<<2) | (1<<1) | (1<<0));  /* A3-A0 is input */
+    GPIOA_DIR |= ((1<<6) | (1<<5) | (1<<4)); /* A4-A6 row outputs */
 }
 
 int button_read_device(void)
 {
-    int btn = BUTTON_NONE;
+    int result = BUTTON_NONE;
+
+    /* direct GPIO connections */
+    if (GPIOA_PIN(3))
+        result |= BUTTON_MENU;
+
+    /* This is a keypad using A4-A6 as columns and A0-A2 as rows */
+    GPIOA_PIN(4) = (1<<4);
+
+    /* A4A0 is unused */
+
+    if (GPIOA_PIN(1))
+        result |= BUTTON_VOLDOWN;
+
+    if (GPIOA_PIN(2))
+        result |= BUTTON_PLAYPAUSE;
+
+    GPIOA_PIN(4) = 0x00;  
+    
+    GPIOA_PIN(5) = (1<<5);
+
+    if (GPIOA_PIN(0))
+        result |= BUTTON_LEFT;
+
+    if (GPIOA_PIN(1))
+        result |= BUTTON_SELECT;
+
+    if (GPIOA_PIN(2))
+        result |= BUTTON_RIGHT;
+
+    GPIOA_PIN(5) = 0x00;
+
+
+    GPIOA_PIN(6) = (1<<6);
+
+    if (GPIOA_PIN(0))
+        result |= BUTTON_REPEATAB;
+
+    if (GPIOA_PIN(1))
+        result |= BUTTON_VOLUP;
+
+    if (GPIOA_PIN(2))
+        result |= BUTTON_HOLD;
+    GPIOA_PIN(6) = 0x00;
 
-    return btn;
+    return result;
 }
 
 bool button_hold(void)
 {
-    /* TODO */
-    return false;
+    bool ret = false;
+    
+    GPIOA_PIN(6) = (1<<6);
+    if (GPIOA_PIN(2))
+        ret = true;
+    GPIOA_PIN(6) = 0x00; 
+    
+    return ret;
 }
diff --git a/firmware/target/arm/as3525/sansa-m200v2/button-target.h b/firmware/target/arm/as3525/sansa-m200v2/button-target.h
index acf80b2ed..779f7400b 100644
--- a/firmware/target/arm/as3525/sansa-m200v2/button-target.h
+++ b/firmware/target/arm/as3525/sansa-m200v2/button-target.h
@@ -40,10 +40,11 @@ bool button_hold(void);
 #define BUTTON_LEFT         0x00000020
 #define BUTTON_RIGHT        0x00000040
 #define BUTTON_SELECT       0x00000080
+#define BUTTON_HOLD         0x00000100
 
 #define BUTTON_MAIN (BUTTON_MENU|BUTTON_VOLUP|BUTTON_VOLDOWN\
                     |BUTTON_PLAYPAUSE|BUTTON_REPEATAB|BUTTON_LEFT\
-                    |BUTTON_RIGHT|BUTTON_SELECT)
+                    |BUTTON_RIGHT|BUTTON_SELECT|BUTTON_HOLD)
 
 #define BUTTON_REMOTE 0
 
-- 
2.11.4.GIT