def initialize_matrix(self, resource):
self.emit("message", "Open all matrix channels...")
matrix = K707B(resource)
matrix.identification
logging.info("matrix: open all channels.")
matrix.channel.open()
channels = matrix.channel.getclose()
logging.info("matrix channels: %s", channels)
self.emit("message", "Opened all matrix channels.")
def open_matrix(self):
try:
with self.resources.get("matrix") as matrix_res:
matrix = K707B(matrix_res)
matrix.channel.open() # open all
logger.info("Matrix: opened all channels")
except Exception as exc:
raise RuntimeError(
f"Matrix failed to open channels, {exc.args}") from exc
def after_finalize(self, **kwargs):
"""Reset marix switch to a save state."""
matrix_enable = self.get_parameter('matrix_enable')
if matrix_enable:
try:
with self.resources.get("matrix") as matrix_res:
matrix = K707B(matrix_res)
matrix.channel.open() # open all
except Exception as exc:
raise RuntimeError(
f"Matrix failed to open channels, {exc.args}") from exc
super().after_finalize(**kwargs)
def read_matrix(self):
self.set("matrix_model", "")
self.set("matrix_channels", "")
try:
with self.resources.get("matrix") as matrix_res:
matrix = K707B(matrix_res)
model = matrix.identification
self.set("matrix_model", model)
channels = matrix.channel.getclose()
self.set("matrix_channels", ','.join(channels))
except (ResourceError, OSError):
pass
def close_matrix(self, channels):
try:
with self.resources.get("matrix") as matrix_res:
matrix = K707B(matrix_res)
matrix.channel.close(channels)
closed_channels = matrix.channel.getclose()
if sorted(closed_channels) != sorted(channels):
raise RuntimeError("Matrix mismatch in closed channels")
logger.info("Matrix: closed channels: %s",
', '.join(closed_channels))
except Exception as exc:
raise RuntimeError(
f"Failed to close matrix channels {channels}, {exc.args}"
) from exc
def before_initialize(self, **kwargs):
"""Setup matrix switch."""
super().before_initialize(**kwargs)
matrix_enable = self.get_parameter('matrix_enable')
if matrix_enable:
matrix_channels = self.get_parameter('matrix_channels')
logger.info("Matrix close channels: %s", matrix_channels)
try:
with self.resources.get("matrix") as matrix_res:
matrix = K707B(matrix_res)
closed_channels = matrix.channel.getclose()
if closed_channels:
raise RuntimeError("Some matrix channels are still closed, " \
f"please verify the situation and open closed channels. Closed channels: {closed_channels}")
if matrix_channels:
matrix.channel.close(matrix_channels)
closed_channels = matrix.channel.getclose()
if sorted(closed_channels) != sorted(matrix_channels):
raise RuntimeError(
"Matrix mismatch in closed channels")
except Exception as exc:
raise RuntimeError(
f"Failed to close matrix channels {matrix_channels}, {exc.args}"
) from exc