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authorDave Chapman <dave@dchapman.com>2007-02-10 19:49:43 +0000
committerDave Chapman <dave@dchapman.com>2007-02-10 19:49:43 +0000
commit955afed1b74793a3f06f98f3c259ec98f26a0b82 (patch)
tree6dcaa6b318ce282b21327530171f4f6a3297cb04 /rbutil/ipodpatcher/ipodio-win32.c
parentf0efde23039064d393e8cc35c2d88a487c47b1c7 (diff)
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Move ipodpatcher into rbutil directory
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12263 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'rbutil/ipodpatcher/ipodio-win32.c')
-rw-r--r--rbutil/ipodpatcher/ipodio-win32.c190
1 files changed, 190 insertions, 0 deletions
diff --git a/rbutil/ipodpatcher/ipodio-win32.c b/rbutil/ipodpatcher/ipodio-win32.c
new file mode 100644
index 0000000000..83f00b8cd9
--- /dev/null
+++ b/rbutil/ipodpatcher/ipodio-win32.c
@@ -0,0 +1,190 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2006-2007 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(struct ipod_t* ipod, int silent)
+{
+ DISK_GEOMETRY_EX diskgeometry_ex;
+ DISK_GEOMETRY diskgeometry;
+ unsigned long n;
+
+ ipod->dh = CreateFile(ipod->diskname, GENERIC_READ,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
+ FILE_FLAG_WRITE_THROUGH | FILE_FLAG_NO_BUFFERING, NULL);
+
+ if (ipod->dh == INVALID_HANDLE_VALUE) {
+ if (!silent) print_error(" Error opening disk: ");
+ return -1;
+ }
+
+ if (!lock_volume(ipod->dh)) {
+ if (!silent) print_error(" Error locking disk: ");
+ return -1;
+ }
+
+ if (!DeviceIoControl(ipod->dh,
+ IOCTL_DISK_GET_DRIVE_GEOMETRY_EX,
+ NULL,
+ 0,
+ &diskgeometry_ex,
+ sizeof(diskgeometry_ex),
+ &n,
+ NULL)) {
+ if (!DeviceIoControl(ipod->dh,
+ IOCTL_DISK_GET_DRIVE_GEOMETRY,
+ NULL,
+ 0,
+ &diskgeometry,
+ sizeof(diskgeometry),
+ &n,
+ NULL)) {
+ if (!silent) print_error(" Error reading disk geometry: ");
+ return -1;
+ } else {
+ ipod->sector_size=diskgeometry.BytesPerSector;
+ }
+ } else {
+ ipod->sector_size=diskgeometry_ex.Geometry.BytesPerSector;
+ }
+
+ return 0;
+}
+
+int ipod_reopen_rw(struct ipod_t* ipod)
+{
+ /* Close existing file and re-open for writing */
+ unlock_volume(ipod->dh);
+ CloseHandle(ipod->dh);
+
+ ipod->dh = CreateFile(ipod->diskname, GENERIC_READ | GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
+ FILE_FLAG_WRITE_THROUGH | FILE_FLAG_NO_BUFFERING, NULL);
+
+ if (ipod->dh == INVALID_HANDLE_VALUE) {
+ print_error(" Error opening disk: ");
+ return -1;
+ }
+
+ if (!lock_volume(ipod->dh)) {
+ print_error(" Error locking disk: ");
+ return -1;
+ }
+
+ return 0;
+}
+
+int ipod_close(struct ipod_t* ipod)
+{
+ unlock_volume(ipod->dh);
+ CloseHandle(ipod->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 = (unsigned char*)VirtualAlloc(NULL, bufsize, MEM_COMMIT, PAGE_READWRITE);
+ if (*sectorbuf == NULL) {
+ print_error(" Error allocating a buffer: ");
+ return -1;
+ }
+ return 0;
+}
+
+int ipod_seek(struct ipod_t* ipod, unsigned long pos)
+{
+ if (SetFilePointer(ipod->dh, pos, NULL, FILE_BEGIN)==0xffffffff) {
+ print_error(" Seek error ");
+ return -1;
+ }
+ return 0;
+}
+
+int ipod_read(struct ipod_t* ipod, unsigned char* buf, int nbytes)
+{
+ unsigned long count;
+
+ if (!ReadFile(ipod->dh, buf, nbytes, &count, NULL)) {
+ print_error(" Error reading from disk: ");
+ return -1;
+ }
+
+ return count;
+}
+
+int ipod_write(struct ipod_t* ipod, unsigned char* buf, int nbytes)
+{
+ unsigned long count;
+
+ if (!WriteFile(ipod->dh, buf, nbytes, &count, NULL)) {
+ print_error(" Error writing to disk: ");
+ return -1;
+ }
+
+ return count;
+}