From 8876018d25c6a56cce118482c1372bbff344cb23 Mon Sep 17 00:00:00 2001
From: Jens Arnold <amiconn@rockbox.org>
Date: Mon, 5 Mar 2007 00:04:00 +0000
Subject: Bring up the M5 port to a working stage: Extended numerous explicit
 checks for IAUDIO_X5 to also check for IAUDIO_M5, moved code around the
 target tree, added preliminary background for the sim.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12610 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/target/coldfire/iaudio/m5/button-m5.c | 151 +++++++++++++++++++++++++
 1 file changed, 151 insertions(+)
 create mode 100644 firmware/target/coldfire/iaudio/m5/button-m5.c

(limited to 'firmware/target/coldfire/iaudio/m5/button-m5.c')

diff --git a/firmware/target/coldfire/iaudio/m5/button-m5.c b/firmware/target/coldfire/iaudio/m5/button-m5.c
new file mode 100644
index 0000000000..a5fdd79fde
--- /dev/null
+++ b/firmware/target/coldfire/iaudio/m5/button-m5.c
@@ -0,0 +1,151 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Linus Nielsen Feltzing
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+#include "system.h"
+#include "button.h"
+#include "backlight.h"
+#include "adc.h"
+#include "lcd-remote-target.h"
+
+/* have buttons scan by default */
+static bool button_scan_on     = true;
+static bool hold_button        = false;
+static bool remote_hold_button = false;
+
+void button_init_device(void)
+{
+    /* Power, Remote Play & Hold switch */
+    GPIO_FUNCTION |= 0x0e000000;
+    GPIO_ENABLE &= ~0x0e000000;
+}
+
+void button_enable_scan(bool enable)
+{
+    button_scan_on = enable;
+}
+
+bool button_scan_enabled(void)
+{
+    return button_scan_on;
+}
+
+bool button_hold(void)
+{
+    return (GPIO_READ & 0x08000000) == 0;
+}
+
+bool remote_button_hold(void)
+{
+    return remote_hold_button;
+}
+
+int button_read_device(void)
+{
+    int  btn = BUTTON_NONE;
+    bool hold_button_old;
+    bool remote_hold_button_old;
+    int  data;
+
+    /* normal buttons */
+    hold_button_old = hold_button;
+    hold_button = button_hold();
+
+#ifndef BOOTLOADER
+    /* give BL notice if HB state chaged */
+    if (hold_button != hold_button_old)
+        backlight_hold_changed(hold_button);
+#endif
+
+    if (button_scan_on && !hold_button)
+    {
+        data = adc_scan(ADC_BUTTONS);
+
+        if (data < 0xf0)
+        {
+            if(data < 0x7c)
+                if(data < 0x42)
+                    btn = BUTTON_LEFT;
+                else
+                    if(data < 0x62)
+                        btn = BUTTON_RIGHT;
+                    else
+                        btn = BUTTON_SELECT;
+            else
+                if(data < 0xb6)
+                    if(data < 0x98)
+                        btn = BUTTON_PLAY;
+                    else
+                        btn = BUTTON_REC;
+                else
+                    if(data < 0xd3)
+                        btn = BUTTON_DOWN;
+                    else
+                        btn = BUTTON_UP;
+        }
+    }
+
+    /* remote buttons */
+    data = remote_detect() ? adc_scan(ADC_REMOTE) : 0xff;
+
+    remote_hold_button_old = remote_hold_button;
+    remote_hold_button = data < 0x17;
+
+#ifndef BOOTLOADER
+    if (remote_hold_button != remote_hold_button_old)
+        remote_backlight_hold_changed(remote_hold_button);
+#endif
+
+    if (!remote_hold_button)
+    {
+        if (data < 0xee)
+        {
+            if(data < 0x7a)
+                if(data < 0x41)
+                    btn |= BUTTON_RC_FF;
+                else
+                    if(data < 0x61)
+                        btn |= BUTTON_RC_REW;
+                    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
+                        btn |= BUTTON_RC_VOL_DOWN;
+        }
+    }
+
+    data = GPIO_READ;
+
+    /* hold and power are mutually exclusive */
+    if (!(data & 0x04000000))
+        btn |= BUTTON_POWER;
+
+    /* remote play button should be dead if hold */
+    if (!remote_hold_button && !(data & 0x02000000))
+        btn |= BUTTON_RC_PLAY;
+
+    return btn;
+}
-- 
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