1 files changed, 92 insertions, 0 deletions

diff --git a/firmware/target/arm/as3525/sansa-clip/button-clip.c b/firmware/target/arm/as3525/sansa-clip/button-clip.c
new file mode 100644
index 0000000000..faed075c65
--- /dev/null
+++ b/firmware/target/arm/as3525/sansa-clip/button-clip.c
@@ -0,0 +1,92 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2008 François Dinel
+ * Copyright (C) 2008 Rafaël Carré
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "button-target.h"
+#include "as3525.h"
+
+void button_init_device(void)
+{
+    GPIOA_DIR &= ~((1<<7) | (1<<3));
+    GPIOB_DIR &= ~((1<<2) | (1<<1) | (1<<0));
+    GPIOC_PIN(4) = 0x00;
+    GPIOC_PIN(5) = 0x00;
+    GPIOC_PIN(6) = 0x00;
+    GPIOC_DIR |= ((1<<6) | (1<<5) | (1<<4));
+}
+
+int button_read_device(void)
+{
+    int result = 0;
+
+    /* direct GPIO connections */
+
+    if (GPIOA_PIN(7))
+        result |= BUTTON_POWER;
+
+    if (GPIOA_PIN(3))
+        result |= BUTTON_HOLD;
+
+    /* This is a keypad using C4-C6 as columns and B0-B2 as rows */
+    GPIOC_PIN(4) = (1<<4);
+
+    /* C4B0 is unused */
+
+    if (GPIOB_PIN(1))
+        result |= BUTTON_VOLUP;
+
+    if (GPIOB_PIN(2))
+        result |= BUTTON_PLAY;
+
+    GPIOC_PIN(4) = 0x00;
+
+    GPIOC_PIN(5) = (1<<5);
+
+    if (GPIOB_PIN(0))
+        result |= BUTTON_LEFT;
+
+    if (GPIOB_PIN(1))
+        result |= BUTTON_SELECT;
+
+    if (GPIOB_PIN(2))
+        result |= BUTTON_RIGHT;
+
+    GPIOC_PIN(5) = 0x00;
+
+    GPIOC_PIN(6) = (1<<6);
+
+    if (GPIOB_PIN(0))
+        result |= BUTTON_DOWN;
+
+    if (GPIOB_PIN(1))
+        result |= BUTTON_VOLDOWN;
+
+    if (GPIOB_PIN(2))
+        result |= BUTTON_HOME;
+
+    GPIOC_PIN(6) = 0x00;
+
+    return result;
+}
+
+bool button_hold(void)
+{
+    return (GPIOA_PIN(3) != 0);
+}