Firewire detection with reboot into diskmode for all iPods that support it (all but Nano and Video). * Hack for compiling iPod G3 removed. * Code cleanup.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14131 a1c6a512-1295-4272-9138-f99709370657

2 files changed, 93 insertions, 12 deletions

diff --git a/firmware/target/arm/usb-fw-pp5002.c b/firmware/target/arm/usb-fw-pp5002.c
new file mode 100644
index 0000000000..e64d4f8f81
--- /dev/null
+++ b/firmware/target/arm/usb-fw-pp5002.c
@@ -0,0 +1,70 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2007 by Jens Arnold
+ *
+ * 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 "ata.h"
+#include "cpu.h"
+#include "string.h"
+#include "system.h"
+#include "usb.h"
+#include "usb-target.h"
+
+void usb_init_device(void)
+{
+    /* TODO: add USB init for iPod 3rd gen */
+
+#if defined(IPOD_1G2G) || defined(IPOD_3G)
+    /* GPIO C bit 7 is firewire detect */
+    GPIOC_ENABLE    |=  0x80;
+    GPIOC_OUTPUT_EN &= ~0x80;
+#endif
+}
+
+void usb_enable(bool on)
+{
+    /* This device specific code will eventually give way to proper USB
+       handling, which should be the same for all PP5002 targets. */
+    if (on)
+    {
+#ifdef IPOD_ARCH
+    /* For iPod, we can only do one thing with USB mode atm - reboot
+       into the flash-based disk-mode.  This does not return. */
+
+        ata_sleepnow(); /* Immediately spindown the disk. */
+        sleep(HZ*2);
+
+        memcpy((void *)0x40017f00, "diskmodehotstuff\1", 17);
+
+        system_reboot(); /* Reboot */
+#endif
+    }
+}
+
+bool usb_detect(void)
+{
+#if defined(IPOD_1G2G) || defined(IPOD_3G)
+    /* GPIO C bit 7 is firewire detect */
+    if (!(GPIOC_INPUT_VAL & 0x80))
+        return true;
+#endif
+
+    /* TODO: add USB detection for iPod 3rd gen */
+
+    return false;
+}
diff --git a/firmware/target/arm/usb-pp.c b/firmware/target/arm/usb-fw-pp502x.c
index b497e86804..92e3dee562 100644
--- a/firmware/target/arm/usb-pp.c
+++ b/firmware/target/arm/usb-fw-pp502x.c
@@ -86,27 +86,25 @@ void usb_init_device(void)
 
     udelay(0x186A0);
 
-
     dr_controller_setup();
+
+#if defined(IPOD_COLOR) || defined(IPOD_4G) \
+ || defined(IPOD_MINI)  || defined(IPOD_MINI2G)
+    /* GPIO C bit 1 is firewire detect */
+    GPIOC_ENABLE    |=  0x02;
+    GPIOC_OUTPUT_EN &= ~0x02;
+#endif
 }
 
 void usb_enable(bool on)
 {
     /* This device specific code will eventually give way to proper USB
-       handling, which should be the same for all PortalPlayer targets. */
+       handling, which should be the same for all PP502x targets. */
     if (on)
     {
 #if defined(IPOD_ARCH) || defined(IRIVER_H10) || defined (IRIVER_H10_5GB)
         /* For the H10 and iPod, we can only do one thing with USB mode - reboot
            into the flash-based disk-mode.  This does not return. */
-       
-        /* 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
 
 #if defined(IRIVER_H10) || defined (IRIVER_H10_5GB)
         if(button_status()==BUTTON_RIGHT)
@@ -114,9 +112,15 @@ void usb_enable(bool on)
         {
             ata_sleepnow(); /* Immediately spindown the disk. */
             sleep(HZ*2);
-#ifdef IPOD_ARCH
-            memcpy(storage_ptr, "diskmode\0\0hotstuff\0\0\1", 21);
+
+#ifdef IPOD_ARCH  /* The following code is based on ipodlinux */
+#if CONFIG_CPU == PP5020
+            memcpy((void *)0x40017f00, "diskmode\0\0hotstuff\0\0\1", 21);
+#elif CONFIG_CPU == PP5022
+            memcpy((void *)0x4001ff00, "diskmode\0\0hotstuff\0\0\1", 21);
 #endif
+#endif
+
             system_reboot(); /* Reboot */
         }
 #endif
@@ -128,6 +132,13 @@ bool usb_detect(void)
     static bool prev_usbstatus1 = false;
     bool usbstatus1,usbstatus2;
 
+#if defined(IPOD_COLOR) || defined(IPOD_4G) \
+ || defined(IPOD_MINI)  || defined(IPOD_MINI2G)
+    /* GPIO C bit 1 is firewire detect */
+    if (!(GPIOC_INPUT_VAL & 0x02))
+        return true;
+#endif
+
     /* UDC_ID should have the bit format:
         [31:24] = 0x0
         [23:16] = 0x22 (Revision number)