def _header_get_pinmap(dtbo):
nodes = dtc.find_nodes_with_prop(dtbo, '/', 'nvidia,pins')
pinmap = []
for node in nodes:
res = re.match(r'.*/pin([0-9]*)/', node)
if res is None:
continue
name = dtc.get_prop_value(dtbo, node, 'nvidia,pins', 0)
pinmap.append(_PinMap(int(res.groups()[0]) - 1, name, node))
return pinmap
def _board_find_hw_addon_overlays(dtbos):
hw_addons = {}
for dtbo in dtbos:
name = dtc.get_prop_value(dtbo, '/', 'overlay-name', 0)
if name is None:
continue
if name == 'Jetson 40pin Header':
continue
if name in hw_addons.keys():
error = "Multiple DT overlays for '%s' found!\n" % name
error = error + "Please remove duplicate(s)"
error = error + "\n%s\n%s" % (dtbo, hw_addons[name])
raise RuntimeError(error)
hw_addons[name] = dtbo
return hw_addons
def hw_addon_load(self, name):
if name not in self.hw_addons.keys():
raise RuntimeError("No overlay found for %s!" % name)
overlay = self.hw_addons[name]
self.header.pins_reset()
nodes = dtc.find_nodes_with_prop(overlay, '/', 'nvidia,function')
for node in nodes:
res = re.match(r'.*/pin([0-9]*)/', node)
if res is None:
raise RuntimeError("Failed to get pin number for node %s!" %
node)
pin = int(res.groups()[0])
function = dtc.get_prop_value(overlay, node, 'nvidia,function', 0)
self.header.pin_set_function(pin, function)
def _board_find_header_overlay(dtbos):
header = None
for dtbo in dtbos:
name = dtc.get_prop_value(dtbo, '/', 'overlay-name', 0)
if name is None:
continue
if name == 'Jetson 40pin Header':
if header:
error = "Multiple DT overlays for '%s' found!\n" % name
error = error + "Please remove duplicate(s)"
error = error + "\n%s\n%s" % (dtbo, header)
raise RuntimeError(error)
header = dtbo
if header is None:
raise RuntimeError("DT Overlay for 40pin Header not found!")
return header