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

1 files changed, 45 insertions, 0 deletions

diff --git a/firmware/target/coldfire/iaudio/usb-iaudio.c b/firmware/target/coldfire/iaudio/usb-iaudio.c
new file mode 100644
index 0000000000..3bd1a7a458
--- /dev/null
+++ b/firmware/target/coldfire/iaudio/usb-iaudio.c
@@ -0,0 +1,45 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   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 <stdbool.h>
+#include "cpu.h"
+#include "system.h"
+
+void usb_init_device(void)
+{
+    or_l(0x00800010, &GPIO_OUT);   /* RESET deasserted, VBUS powered */
+    or_l(0x00800010, &GPIO_ENABLE);
+    or_l(0x00800010, &GPIO_FUNCTION);
+    
+    or_l(0x00800000, &GPIO1_FUNCTION);  /* USB detect */
+}
+
+bool usb_detect(void)
+{
+    return (GPIO1_READ & 0x00800000)?true:false;
+}
+
+void usb_enable(bool on)
+{
+    if(on) {
+        or_l(0x00000008, &GPIO1_OUT);
+    } else {
+        and_l(~0x00000008, &GPIO1_OUT);
+    }
+}