| #!/usr/bin/env python3 |
| # |
| # Copyright 2020 - The Android Open Source Project |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| from acts.controllers.fuchsia_lib.base_lib import BaseLib |
| |
| |
| class FuchsiaI2cLib(BaseLib): |
| def __init__(self, addr, tc, client_id): |
| self.address = addr |
| self.test_counter = tc |
| self.client_id = client_id |
| |
| def transfer(self, device_idx, segments_is_write, write_segments_data, |
| read_segments_length): |
| """Gets the fuchsia.input.report.DeviceDescriptor for a given device. |
| |
| Args: |
| device_idx: the integer device index to use, e.g. 6 for /dev/class/i2c/006. |
| segments_is_write: a list of bools specifying whether each segment is a read or a write. |
| write_segments_data: a list of write segments, where each segment is a list of bytes to write. |
| read_segments_length: a list of integers specifying the number of bytes in each read segment. |
| |
| Returns: |
| The list of read segments received, or an error message if an error was encountered. |
| """ |
| test_cmd = "i2c_facade.Transfer" |
| test_args = { |
| "device_idx": device_idx, |
| "segments_is_write": segments_is_write, |
| "write_segments_data": write_segments_data, |
| "read_segments_length": read_segments_length |
| } |
| test_id = self.build_id(self.test_counter) |
| self.test_counter += 1 |
| |
| return self.send_command(test_id, test_cmd, test_args) |
