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authorDave Chapman <dave@dchapman.com>2007-07-27 20:51:36 +0000
committerDave Chapman <dave@dchapman.com>2007-07-27 20:51:36 +0000
commit35735c66e00df7951df57e81792f9fdd4823d34e (patch)
tree6e9db387d3b4be87bf31053f4920685cb52f05e2 /rbutil/ipodpatcher/ipodpatcher.c
parent018d55599571d118ef682f81c3fc7ab2f4534b40 (diff)
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Initial attempt at a --convert option to convert HFS formatted ipods (Macpods) to FAT32 format. This needs testing (as well as the existing --format feature) before adding as an option in the interactive mode and fully documenting.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14030 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'rbutil/ipodpatcher/ipodpatcher.c')
-rw-r--r--rbutil/ipodpatcher/ipodpatcher.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/rbutil/ipodpatcher/ipodpatcher.c b/rbutil/ipodpatcher/ipodpatcher.c
index 395fd6953d..567c5b9cce 100644
--- a/rbutil/ipodpatcher/ipodpatcher.c
+++ b/rbutil/ipodpatcher/ipodpatcher.c
@@ -171,6 +171,8 @@ int read_partinfo(struct ipod_t* ipod, int silent)
return -1;
}
+ memset(ipod->pinfo, 0, sizeof(ipod->pinfo));
+
if ((sectorbuf[510] == 0x55) && (sectorbuf[511] == 0xaa)) {
/* DOS partition table */
ipod->macpod = 0;
@@ -1289,3 +1291,60 @@ int ipod_scan(struct ipod_t* ipod)
}
return n;
}
+
+static void put_int32le(uint32_t x, unsigned char* p)
+{
+ p[0] = x & 0xff;
+ p[1] = (x >> 8) & 0xff;
+ p[2] = (x >> 16) & 0xff;
+ p[3] = (x >> 24) & 0xff;
+}
+
+int write_dos_partition_table(struct ipod_t* ipod)
+{
+ unsigned char* p;
+ int i, n;
+ uint32_t type;
+
+ /* Only support 512-byte sectors at the moment */
+ if ( ipod->sector_size != 512 )
+ {
+ fprintf(stderr,"[ERR] Only ipods with 512 bytes per sector are supported.\n");
+ return -1;
+ }
+
+ /* Firstly zero the entire MBR */
+ memset(sectorbuf, 0, ipod->sector_size);
+
+ /* Now add the partition info */
+ for (i=0; i < 4 ; i++)
+ {
+ p = sectorbuf + 0x1be + i*16;
+
+ /* Ensure first partition is type 0, and second is 0xb */
+ if (i==0) { type = 0; }
+ else if (i==1) { type = 0xb; }
+ else { type = ipod->pinfo[i].type; }
+
+ put_int32le(type, p + 4);
+ put_int32le(ipod->pinfo[i].start, p + 8);
+ put_int32le(ipod->pinfo[i].size, p + 12);
+ }
+
+ /* Finally add the magic */
+ sectorbuf[0x1fe] = 0x55;
+ sectorbuf[0x1ff] = 0xaa;
+
+ if (ipod_seek(ipod, 0) < 0) {
+ fprintf(stderr,"[ERR] Seek failed writing MBR\n");
+ return -1;
+ }
+
+ /* Write MBR */
+ if ((n = ipod_write(ipod, sectorbuf, ipod->sector_size)) < 0) {
+ perror("[ERR] Write failed\n");
+ return -1;
+ }
+
+ return 0;
+}