1 files changed, 114 insertions, 0 deletions

diff --git a/firmware/target/arm/ipod/usb-ipod.c b/firmware/target/arm/ipod/usb-ipod.c
new file mode 100644
index 0000000000..c481355768
--- /dev/null
+++ b/firmware/target/arm/ipod/usb-ipod.c
@@ -0,0 +1,114 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Linus Nielsen Feltzing
+ *
+ * iPod driver based on code from the ipodlinux project - http://ipodlinux.org
+ * Adapted for Rockbox in January 2006
+ * Original file: podzilla/usb.c
+ * Copyright (C) 2005 Adam Johnston
+ *
+ * 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 "cpu.h"
+#include "kernel.h"
+#include "thread.h"
+#include "system.h"
+#include "debug.h"
+#include "ata.h"
+#include "fat.h"
+#include "disk.h"
+#include "panic.h"
+#include "lcd.h"
+#include "adc.h"
+#include "usb.h"
+#include "button.h"
+#include "sprintf.h"
+#include "string.h"
+#include "hwcompat.h"
+ 
+void usb_init_device(void)
+{
+    int r0;
+    outl(inl(0x70000084) | 0x200, 0x70000084);
+
+    outl(inl(0x7000002C) | 0x3000000, 0x7000002C);
+    outl(inl(0x6000600C) | 0x400000, 0x6000600C);
+
+    outl(inl(0x60006004) | 0x400000, 0x60006004);   /* reset usb start */
+    outl(inl(0x60006004) & ~0x400000, 0x60006004);  /* reset usb end */
+
+    outl(inl(0x70000020) | 0x80000000, 0x70000020);
+    while ((inl(0x70000028) & 0x80) == 0);
+
+    outl(inl(0xc5000184) | 0x100, 0xc5000184);
+    while ((inl(0xc5000184) & 0x100) != 0);
+
+    outl(inl(0xc50001A4) | 0x5F000000, 0xc50001A4);
+    if ((inl(0xc50001A4) & 0x100) == 0) {
+        outl(inl(0xc50001A8) & ~0x3, 0xc50001A8);
+        outl(inl(0xc50001A8) | 0x2, 0xc50001A8);
+        outl(inl(0x70000028) | 0x4000, 0x70000028);
+        outl(inl(0x70000028) | 0x2, 0x70000028);
+    } else {
+        outl(inl(0xc50001A8) | 0x3, 0xc50001A8);
+        outl(inl(0x70000028) &~0x4000, 0x70000028);
+        outl(inl(0x70000028) | 0x2, 0x70000028);
+    }
+    outl(inl(0xc5000140) | 0x2, 0xc5000140);
+    while((inl(0xc5000140) & 0x2) != 0);
+    r0 = inl(0xc5000184);
+
+    /* Note from IPL source (referring to next 5 lines of code: 
+       THIS NEEDS TO BE CHANGED ONCE THERE IS KERNEL USB */
+    outl(inl(0x70000020) | 0x80000000, 0x70000020);
+    outl(inl(0x6000600C) | 0x400000, 0x6000600C);
+    while ((inl(0x70000028) & 0x80) == 0);
+    outl(inl(0x70000028) | 0x2, 0x70000028);
+
+    udelay(0x186A0);
+}
+
+void usb_enable(bool on)
+{
+    /* For the ipod, we can only do one thing with USB mode - reboot
+       into Apple's flash-based disk-mode.  This does not return. */
+    if (on)
+    {
+      /* The following code is copied from ipodlinux */
+#if defined(IPOD_COLOR) || defined(IPOD_3G) || \
+    defined(IPOD_4G) || defined(IPOD_MINI)
+        unsigned char* storage_ptr = (unsigned char *)0x40017F00;
+#elif defined(IPOD_NANO) || defined(IPOD_VIDEO) || defined(IPOD_MINI2G)
+        unsigned char* storage_ptr = (unsigned char *)0x4001FF00;
+#endif
+        memcpy(storage_ptr, "diskmode\0\0hotstuff\0\0\1", 21);
+        DEV_RS |= 4; /* Reboot */
+    }
+}
+
+bool usb_detect(void)
+{
+    bool current_status;
+
+    /* The following check is in the ipodlinux source, with the
+       comment "USB2D_IDENT is bad" if USB2D_IDENT != 0x22FA05 */
+    if (USB2D_IDENT != 0x22FA05) {
+        return false;
+    }
+    current_status = (USB_STATUS & 0x800)?true:false;
+    
+    return current_status;
+}