1 files changed, 75 insertions, 0 deletions

diff --git a/firmware/target/coldfire/mpio/usb-mpio.c b/firmware/target/coldfire/mpio/usb-mpio.c
new file mode 100644
index 0000000000..a8c3db85bd
--- /dev/null
+++ b/firmware/target/coldfire/mpio/usb-mpio.c
@@ -0,0 +1,75 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2010 Marcin Bukat
+ *
+ * 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 "config.h"
+#include <stdbool.h>
+#include "cpu.h"
+#include "system.h"
+#include "kernel.h"
+#include "usb.h"
+
+void usb_init_device(void)
+{
+    /* GPIO42 is USB detect input
+     * but it also serves as MCLK2 for DAC
+     */
+    and_l(~(1<<4), &GPIO1_OUT);           /* GPIO36 low */
+    or_l((1<<4), &GPIO1_ENABLE);          /* GPIO36 */
+    or_l((1<<4)|(1<<5), &GPIO1_FUNCTION); /* GPIO36 GPIO37 */
+
+     /* GPIO22 GPIO30 high */
+    or_l((1<<22)|(1<<30), &GPIO_OUT);
+    or_l((1<<22)|(1<<30), &GPIO_ENABLE);
+    or_l((1<<22)|(1<<30), &GPIO_FUNCTION);
+}
+
+int usb_detect(void)
+{
+    /* GPIO42 active low*/
+    return (GPIO1_READ & (1<<10)) ? USB_EXTRACTED : USB_INSERTED;
+}
+
+void usb_enable(bool on)
+{
+    /* one second timeout */
+    unsigned char timeout = 10;
+   
+    if(on)
+    {
+        and_l(~(1<<30),&GPIO_OUT);  /* GPIO30 low */
+        and_l(~(1<<22),&GPIO_OUT);  /* GPIO22 low */
+
+        or_l((1<<4),&GPIO1_OUT);    /* GPIO36 high */
+
+    }
+    else
+    {
+        or_l((1<<22),&GPIO_OUT);  /* GPIO22 high */
+        or_l((1<<30),&GPIO_OUT);  /* GPIO30 high */
+
+        and_l(~(1<<4),&GPIO1_OUT); /* GPIO36 low */
+
+        while ( !(GPIO1_READ & (1<<5)) && timeout--)
+        {
+            sleep(HZ/10);
+        }
+        sleep(HZ);
+    }
+}