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bios_reader: Fix to work on non-Intel machines

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Actually, fix to work on _any_ machine where the ROM file doesn't match
the GPU.  Just extract the device ID from the ROM itself rather than
look at the running system.

Signed-off-by: Adam Jackson <ajax@redhat.com>
This commit is contained in:
Adam Jackson 2010-09-08 14:39:12 -04:00
parent c09fa38c01
commit 4f12d8acba
1 changed files with 20 additions and 3 deletions
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23
tools/intel_bios_reader.c
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@ -660,6 +660,23 @@ static void dump_edp(void)
free(block);
}
static int
get_device_id(unsigned char *bios)
{
int device;
int offset = (bios[0x19] << 8) + bios[0x18];
if (bios[offset] != 'P' ||
bios[offset+1] != 'C' ||
bios[offset+2] != 'I' ||
bios[offset+3] != 'R')
return -1;
device = (bios[offset+7] << 8) + bios[offset+6];
return device;
}
int main(int argc, char **argv)
{
int fd;
@ -669,7 +686,6 @@ int main(int argc, char **argv)
struct stat finfo;
struct bdb_block *block;
char signature[17];
struct pci_device *pci_dev;
if (argc != 2) {
printf("usage: %s <rom file>\n", argv[0]);
@ -729,8 +745,9 @@ int main(int argc, char **argv)
}
printf("\n");
pci_dev = intel_get_pci_device();
devid = pci_dev->device_id;
devid = get_device_id(pI830->VBIOS);
if (devid == -1)
printf("Warning: could not find PCI device ID!\n");
dump_general_features();
dump_general_definitions();