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mkamsboot/rbutil/amsinfo : do not try to detect the model of a given Sansa AMS OF

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The field we thought was representative of the model is not, it has
changed in the past for fuzev1 and fuzev2.
For example the value 0x23 is found in 2 old fuzev1 OF versions, and in
the c200v2 OF

The only reliable way to detect the model of a given OF is by using the
built-in list of md5sums.

Modify mkamsboot and rbutilqt to load the rockbox bootloader first, and
then check if the model in the bootloader corresponds to the model of
the known md5sum of the given OF.

That way we can continue to present the user with a list of known OF
versions in case the OF is unknown to mkamsboot

Also explicit the dependency of main.c on mkamsboot.h in case the
prototypes change
Correct the header's description not updated in r21648

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26248 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2010-05-24 10:06:52 +00:00
parent eae2464e9a
commit ff6b0425e4
6 changed files with 60 additions and 116 deletions
Download patch file Download diff file Expand all files Collapse all files

37
utils/AMS/hacking/amsinfo.c
View file

@ -66,7 +66,7 @@ uint8_t *buf; /* file content */
/* 1st block description */
uint32_t idx,checksum,bs_multiplier,firmware_sz;
uint32_t unknown_4_1; uint8_t unknown_1,id; uint16_t unknown_2;
uint32_t unknown_4_1; uint16_t unknown_1, unknown_2;
uint32_t unknown_4_2,unknown_4_3;
static void *xmalloc(size_t s) /* malloc helper */
@ -76,28 +76,6 @@ static void *xmalloc(size_t s) /* malloc helper */
return r;
}
/* known models */
static const char * model(uint8_t id)
{
switch(id)
{
case 0x1E: return "FUZE"; break;
case 0x22: return "CLIP"; break;
case 0x23: return "C200"; break;
case 0x24: return "E200"; break;
case 0x25: return "M200"; break;
case 0x27: return "CLV2"; break;
case 0x28: return "CLI+"; break;
case 0x70:
case 0x6d: return "FUZ2"; break;
default:
printf("Unknown ID 0x%x\n", id);
assert(id == 0x1E || (id >= 0x22 && id <= 0x28));
return "UNKNOWN!";
}
}
/* checksums the firmware (the firmware header contains the verification) */
static uint32_t do_checksum(void)
{
@ -142,8 +120,7 @@ static void check(void)
assert(bs_multiplier << 9 == PAD_TO_BOUNDARY(firmware_sz)); /* 0x200 * bs_multiplier */
unknown_4_1 = get32le(0x10 + shift);
unknown_1 = buf[0x14 + shift];
id = buf[0x15 + shift];
unknown_1 = get16le(0x14 + shift);
unknown_2 = get16le(0x16 + shift);
unknown_4_2 = get32le(0x18 + shift);
unknown_4_3 = get32le(0x1c + shift);
@ -170,9 +147,6 @@ static void check(void)
color(GREEN);
printf("1 Unknown %x\n",unknown_1);
color(GREEN);
printf("1 Model ID %x (%s)\n",id,model(id));
color(GREEN);
printf("2 Unknown (should be 0) %x\n",unknown_2);
assert(unknown_2 == 0);
@ -185,13 +159,6 @@ static void check(void)
printf("4 Unknown (should be 1) %x\n",unknown_4_3);
assert(unknown_4_3 == 1);
/* rest of the block is padded with 0xff */
for(i=0x20 + shift;i<0x200 - shift;i++)
assert(buf[i]==0xff /* normal case */ ||
((id==0x1e||id==0x24) && ( /* Fuze or E200 */
(i>=0x3c && i<=0x3f && get32le(0x3c)==0x00005000)
)));
/* the 2nd block is identical, except that the 1st byte has been incremented */
assert(buf[0x0]==0&&buf[0x200]==1);
assert(!memcmp(&buf[1],&buf[0x201],0x1FF - shift));