Work-in-progress towards a cross-platform ipodpatcher which will edit the firmware partition directly, incorporating the ipod_fw.c functionality. Tested successfully on win32 and Linux but it only lists the contents of the firmware partition at the moment - no actual reading or writing
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11748 a1c6a512-1295-4272-9138-f99709370657
diff --git a/tools/ipodpatcher/ipodio-win32.c b/tools/ipodpatcher/ipodio-win32.c
new file mode 100644
index 0000000..4914e4b
--- /dev/null
+++ b/tools/ipodpatcher/ipodio-win32.c
@@ -0,0 +1,190 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2006 Dave Chapman
+ *
+ * error(), lock_volume() and unlock_volume() functions and inspiration taken
+ * from:
+ * RawDisk - Direct Disk Read/Write Access for NT/2000/XP
+ * Copyright (c) 2003 Jan Kiszka
+ * http://www.stud.uni-hannover.de/user/73174/RawDisk/
+ *
+ * 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 <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#ifdef __WIN32__
+#include <windows.h>
+#include <winioctl.h>
+#endif
+
+#include "ipodio.h"
+
+static int lock_volume(HANDLE hDisk)
+{
+ DWORD dummy;
+
+ return DeviceIoControl(hDisk, FSCTL_LOCK_VOLUME, NULL, 0, NULL, 0,
+ &dummy, NULL);
+}
+
+static int unlock_volume(HANDLE hDisk)
+{
+ DWORD dummy;
+
+ return DeviceIoControl(hDisk, FSCTL_UNLOCK_VOLUME, NULL, 0, NULL, 0,
+ &dummy, NULL);
+}
+
+void print_error(char* msg)
+{
+ char* pMsgBuf;
+
+ printf(msg);
+ FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
+ FORMAT_MESSAGE_IGNORE_INSERTS, NULL, GetLastError(),
+ MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&pMsgBuf,
+ 0, NULL);
+ printf(pMsgBuf);
+ LocalFree(pMsgBuf);
+}
+
+int ipod_open(HANDLE* dh, char* diskname, int* sector_size)
+{
+ DISK_GEOMETRY_EX diskgeometry_ex;
+ DISK_GEOMETRY diskgeometry;
+ unsigned long n;
+
+ *dh = CreateFile(diskname, GENERIC_READ,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
+ FILE_FLAG_WRITE_THROUGH | FILE_FLAG_NO_BUFFERING, NULL);
+
+ if (*dh == INVALID_HANDLE_VALUE) {
+ print_error(" Error opening disk: ");
+ return -1;
+ }
+
+ if (!lock_volume(*dh)) {
+ print_error(" Error locking disk: ");
+ return -1;
+ }
+
+ if (!DeviceIoControl(*dh,
+ IOCTL_DISK_GET_DRIVE_GEOMETRY_EX,
+ NULL,
+ 0,
+ &diskgeometry_ex,
+ sizeof(diskgeometry_ex),
+ &n,
+ NULL)) {
+ if (!DeviceIoControl(*dh,
+ IOCTL_DISK_GET_DRIVE_GEOMETRY,
+ NULL,
+ 0,
+ &diskgeometry,
+ sizeof(diskgeometry),
+ &n,
+ NULL)) {
+ print_error(" Error reading disk geometry: ");
+ return -1;
+ } else {
+ *sector_size=diskgeometry.BytesPerSector;
+ }
+ } else {
+ *sector_size=diskgeometry_ex.Geometry.BytesPerSector;
+ }
+
+ return 0;
+}
+
+int ipod_reopen_rw(HANDLE* dh, char* diskname)
+{
+ /* Close existing file and re-open for writing */
+ unlock_volume(*dh);
+ CloseHandle(*dh);
+
+ *dh = CreateFile(diskname, GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
+ FILE_FLAG_WRITE_THROUGH | FILE_FLAG_NO_BUFFERING, NULL);
+
+ if (*dh == INVALID_HANDLE_VALUE) {
+ print_error(" Error opening disk: ");
+ return -1;
+ }
+
+ if (!lock_volume(*dh)) {
+ print_error(" Error locking disk: ");
+ return -1;
+ }
+
+ return 0;
+}
+
+int ipod_close(HANDLE dh)
+{
+ unlock_volume(dh);
+ CloseHandle(dh);
+ return 0;
+}
+
+int ipod_alloc_buffer(unsigned char** sectorbuf, int bufsize)
+{
+ /* The ReadFile function requires a memory buffer aligned to a multiple of
+ the disk sector size. */
+ *sectorbuf = VirtualAlloc(NULL, bufsize, MEM_COMMIT, PAGE_READWRITE);
+ if (*sectorbuf == NULL) {
+ print_error(" Error allocating a buffer: ");
+ return -1;
+ }
+ return 0;
+}
+
+int ipod_seek(HANDLE dh, unsigned long pos)
+{
+ if (SetFilePointer(dh, pos, NULL, FILE_BEGIN)==0xffffffff) {
+ print_error(" Seek error ");
+ return -1;
+ }
+ return 0;
+}
+
+int ipod_read(HANDLE dh, unsigned char* buf, int nbytes)
+{
+ unsigned long count;
+
+ if (!ReadFile(dh, buf, nbytes, &count, NULL)) {
+ print_error(" Error reading from disk: ");
+ return -1;
+ }
+
+ return count;
+}
+
+int ipod_write(HANDLE dh, unsigned char* buf, int nbytes)
+{
+ unsigned long count;
+
+ if (!WriteFile(dh, buf, nbytes, &count, NULL)) {
+ print_error(" Error writing to disk: ");
+ return -1;
+ }
+
+ return count;
+}