static INLINE void
get_bus_info( int fd,
DWORD *vendorid,
DWORD *deviceid,
DWORD *subsysid,
DWORD *revision )
{
drm_unique_t u;
u.unique_len = 0;
u.unique = NULL;
if (ioctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) { return; }
u.unique = CALLOC(u.unique_len+1, 1);
if (ioctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) { return; }
u.unique[u.unique_len] = '\0';
DBG("DRM Device BusID: %s\n", u.unique);
if (strncmp("pci:", u.unique, 4) == 0) {
char fname[512]; /* this ought to be enough */
int l = snprintf(fname, 512, "/sys/bus/pci/devices/%s/", u.unique+4);
/* VendorId */
snprintf(fname+l, 512-l, "vendor");
*vendorid = read_file_dword(fname);
/* DeviceId */
snprintf(fname+l, 512-l, "device");
*deviceid = read_file_dword(fname);
/* SubSysId */
snprintf(fname+l, 512-l, "subsystem_device");
*subsysid = (read_file_dword(fname) << 16) & 0xFFFF0000;
snprintf(fname+l, 512-l, "subsystem_vendor");
*subsysid |= read_file_dword(fname) & 0x0000FFFF;
/* Revision */
{
int cfgfd;
snprintf(fname+l, 512-l, "config");
cfgfd = open(fname, O_RDONLY);
if (cfgfd >= 0) {
*revision = read_config_dword(cfgfd, 0x8) & 0x000000FF;
close(cfgfd);
} else {
DBG("Unable to get raw PCI information from `%s'\n", fname);
}
}
DBG("PCI info: vendor=0x%04x, device=0x%04x, subsys=0x%08x, rev=%d\n",
*vendorid, *deviceid, *subsysid, *revision);
} else {
DBG("Unsupported BusID type.\n");
}
FREE(u.unique);
}
static int pci_config_read(struct pci_bus *bus, unsigned int devfn,
int where, int size, u32 * val)
{
switch (size) {
case 1:
return read_config_byte(bus, devfn, where, val);
case 2:
return read_config_word(bus, devfn, where, val);
default:
return read_config_dword(bus, devfn, where, val);
}
}
