1 files changed, 211 insertions, 0 deletions

diff --git a/rbutil/e200rpatcher/e200rpatcher.c b/rbutil/e200rpatcher/e200rpatcher.c
new file mode 100644
index 0000000000..a2531e9f6d
--- /dev/null
+++ b/rbutil/e200rpatcher/e200rpatcher.c
@@ -0,0 +1,211 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2007 Dave Chapman
+ *
+ * USB code based on ifp-line - http://ifp-driver.sourceforge.net
+ *
+ * ifp-line is (C) Pavel Kriz, Jun Yamishiro and Joe Roback and
+ * licensed under the GPL (v2)
+ *
+ *
+ * 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 <stdio.h>
+#include <inttypes.h>
+#include <usb.h>
+
+#include "bootimg.h"
+
+#define VERSION "0.1-svn"
+
+/* USB IDs for Manufacturing Mode */
+#define E200R_VENDORID    0x0781
+#define E200R_PRODUCTID   0x0720
+
+#define E200R_BULK_TO     1
+#define TOUT              5000
+#define MAX_TRANSFER      64       /* Number of bytes to send in one write */
+
+#ifndef MAX
+#define MAX(a,b) (((a)>(b))?(a):(b))
+#endif
+
+static void put_int32le(uint32_t x, char* p)
+{
+    p[0] = x & 0xff;
+    p[1] = (x >> 8) & 0xff;
+    p[2] = (x >> 16) & 0xff;
+    p[3] = (x >> 24) & 0xff;
+}
+
+int upload_app(usb_dev_handle* dh)
+{
+    char buf[4];
+    int err;
+    int tosend;
+    char* p = (char*)bootimg;
+    int bytesleft = LEN_bootimg;
+
+    /* Write the data length */
+
+    put_int32le(LEN_bootimg, buf);
+
+    err = usb_bulk_write(dh, E200R_BULK_TO, buf, 4, TOUT);
+
+    if (err < 0)
+    {
+        fprintf(stderr,"[ERR]  Error writing data length\n");
+        return -1;
+    }
+
+    /* Now send the data, MAX_TRANSFER bytes at a time. */
+
+    while (bytesleft > 0)
+    {
+        tosend = MAX(MAX_TRANSFER, bytesleft);
+
+        err = usb_bulk_write(dh, E200R_BULK_TO, p, tosend, TOUT);
+
+        if (err < 0)
+        {
+            fprintf(stderr,"[ERR]  Error writing data\n");
+            return -1;
+        }
+
+        p += tosend;
+        bytesleft -= tosend;
+    }
+
+    return 0;
+}
+
+
+/* The main function */
+
+void do_patching(void)
+{
+    struct usb_bus *busses;
+    struct usb_bus *bus;
+    struct usb_device *tmp_dev;
+    struct usb_device *dev = NULL;
+    usb_dev_handle *dh;
+
+    fprintf(stderr,"[INFO] Searching for E200R\n");
+ 
+    usb_init();
+
+    if(usb_find_busses() < 0) {
+        fprintf(stderr, "[ERR]  Could not find any USB busses.\n");
+        return;
+    }
+
+    if (usb_find_devices() < 0) {
+        fprintf(stderr, "[ERR]  USB devices not found(nor hubs!).\n");
+        return;
+    }
+
+    /* C calling convention, it's not nice to use global stuff */
+    busses = usb_get_busses();
+
+    usb_init();
+    usb_find_busses();
+    usb_find_devices();
+
+    for (bus = busses; bus; bus = bus->next) {
+        for (tmp_dev = bus->devices; tmp_dev; tmp_dev = tmp_dev->next) {
+            if (tmp_dev->descriptor.idVendor == E200R_VENDORID &&
+                tmp_dev->descriptor.idProduct == E200R_PRODUCTID ) {
+
+                dev = tmp_dev;
+                goto found;
+
+            }
+        }
+    }
+
+    if (dev == NULL) {
+        fprintf(stderr, "[ERR]  E200R device not found.\n");
+        fprintf(stderr, "[ERR]  Ensure your E200R is in manufacturing mode and run e200rpatcher again.\n");
+        return;
+    }
+
+found:
+    if ( (dh = usb_open(dev)) == NULL) {
+        fprintf(stderr,"[ERR]  Unable to open E200R device.\n");
+        return;
+    }
+
+    /* "must be called" written in the libusb documentation */
+    if (usb_claim_interface(dh, dev->config->interface->altsetting->bInterfaceNumber)) {
+        fprintf(stderr, "[ERR]  Device is busy.  (I was unable to claim its interface.)\n");
+        usb_close(dh);
+        return;
+    }
+
+
+    fprintf(stderr,"[ERR]  Found E200R, uploading patching application.\n");
+
+    /* Now we can transfer the application to the device. */ 
+
+    if (upload_app(dh) < 0)
+    {
+        fprintf(stderr,"[ERR]  Upload of application failed.\n");
+    }
+    else
+    {
+        fprintf(stderr,"[INFO] Patching application uploaded successfully!\n");
+    }
+
+    /* release claimed interface */
+    usb_release_interface(dh, dev->config->interface->altsetting->bInterfaceNumber);
+
+    usb_close(dh);
+}
+
+
+int main(int argc, char* argv[])
+{
+    char input[4];
+
+    /* We don't use the arguments */
+    (void)argc;
+    (void)argv;
+
+    printf("e200rpatcher v" VERSION " - (C) 2007 Jonathan Gordon & Dave Chapman\n");
+    printf("This is free software; see the source for copying conditions.  There is NO\n");
+    printf("warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n");
+
+    printf("Attach your E200R in \"manufacturing mode\" as follows:\n");
+    printf("   1) Power-off your E200R\n");
+    printf("   2) Turn ON the lock/hold switch\n");
+    printf("   3) Press and hold the SELECT button and whilst it is held down,\n");
+    printf("      attach your E200R to your computer via USB\n");
+    printf("   4) After attaching to USB, keep the SELECT button held for 10 seconds.\n");
+    printf("\n");
+    printf("NOTE: If your E200R starts in the normal Sansa firmware, you have\n");
+    printf("      failed to enter manufacturing mode and should try again at step 1).\n\n");
+
+    printf("[INFO] Press Enter to continue:");
+    fgets(input, 4, stdin);
+
+    do_patching();
+
+    printf("[INFO] Press ENTER to exit: ");
+    fgets(input, 4, stdin);
+
+    return 0;
+}