def _board_partition_mount(partlabel):
path = os.path.join('/mnt', partlabel)
if os.path.exists(path):
raise RuntimeError("Mountpoint %s already exists!" % path)
os.makedirs(path)
syscall.call('mount PARTLABEL="%s" "%s"' % (partlabel, path))
return path
def _board_partition_umount(mountpoint):
if syscall.call('umount "%s"' % mountpoint):
raise RuntimeError("Failed to umount %s!" % mountpoint)
os.rmdir(mountpoint)
def _board_partition_is_mounted(partlabel):
if not syscall.call_out('findfs PARTLABEL="%s"' % partlabel):
raise RuntimeError("No %s partition found!" % partlabel)
return syscall.call('findmnt -n -S PARTLABEL="%s"' % partlabel) == 0
def overlay(dtb, out, *overlays):
for overlay in overlays:
__files_exist(dtb, overlay)
files = ' '.join(overlays)
if syscall.call('fdtoverlay -i "%s" -o "%s" "%s"' % (dtb, out, files)):
raise RuntimeError("Failed to overlay %s with %s!" % (dtb, files))
def set_prop_value(dtb, node, dtype, prop, value):
__files_exist(dtb)
if syscall.call('fdtput -t "%s" "%s" "%s" "%s" "%s"' %
(dtype, dtb, node, prop, value)):
raise RuntimeError("Failed to get property value for %s%s!" %
(node, prop))
def compile(dts, dtb):
__files_exist(dts)
if syscall.call('dtc -I dts -O dtb "%s" -o "%s"' % (dts, dtb)):
raise RuntimeError("Failed to compile %s to %s!" % (dts, dtb))
def extract(dtb, dts):
__files_exist(dtb)
if syscall.call('dtc -I dtb -O dts "%s" -o "%s"' % (dtb, dts)):
raise RuntimeError("Failed to extract %s to %s!" % (dtb, dts))
def __prop_exists(dtb, node, prop):
return syscall.call('fdtget "%s" "%s" "%s"' % (dtb, node, prop))
def remove_node(dtb, node):
__files_exist(dtb)
return syscall.call('fdtput -r "%s" "%s"' % (dtb, node))
continue
if model != get_model(dtb):
continue
dtbs.append(dtb)
if not dtbs:
return None
return dtbs
def find_compatible_dtbo_files(compat, path):
dtbos = []
for dtbo in glob.glob(os.path.join(path, '*.dtbo')):
c = get_compatible(dtbo)
if c is None:
continue
if compat in c:
dtbos.append(dtbo)
if not dtbos:
return None
return dtbos
def remove_node(dtb, node):
__files_exist(dtb)
return syscall.call('fdtput -r "%s" "%s"' % (dtb, node))
if syscall.call('which dtc') or syscall.call('which fdtoverlay') or \
syscall.call('which fdtget') or syscall.call('which fdtput'):
raise RuntimeError("Device-tree compiler not found!")
