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1#!/usr/bin/env python3
2#
3#   Copyright 2020 - The Android Open Source Project
4#
5#   Licensed under the Apache License, Version 2.0 (the "License");
6#   you may not use this file except in compliance with the License.
7#   You may obtain a copy of the License at
8#
9#       http://www.apache.org/licenses/LICENSE-2.0
10#
11#   Unless required by applicable law or agreed to in writing, software
12#   distributed under the License is distributed on an "AS IS" BASIS,
13#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14#   See the License for the specific language governing permissions and
15#   limitations under the License.
16
17from acts.controllers.fuchsia_lib.base_lib import BaseLib
18
19
20class FuchsiaGpioLib(BaseLib):
21    def __init__(self, addr, tc, client_id):
22        self.address = addr
23        self.test_counter = tc
24        self.client_id = client_id
25
26    def configIn(self, pin, flags):
27        """ Configures a GPIO for input.
28
29        Args:
30           pin: uint32, pin number of GPIO
31           flags: uint32, flags to configure for GPIO
32
33        Returns:
34           None if success, prints error message if error.
35        """
36        test_cmd = "gpio_facade.ConfigIn"
37        test_args = {"pin": pin, "flags": flags}
38        test_id = self.build_id(self.test_counter)
39        self.test_counter += 1
40
41        return self.send_command(test_id, test_cmd, test_args)
42
43    def configOut(self, pin, value):
44        """ Configures a GPIO for output.
45
46        Args:
47           pin: uint32, pin number of GPIO
48           value: uint8, initial value
49
50        Returns:
51           None if success, prints error message if error.
52        """
53        test_cmd = "gpio_facade.ConfigOut"
54        test_args = {"pin": pin, "value": value}
55        test_id = self.build_id(self.test_counter)
56        self.test_counter += 1
57
58        return self.send_command(test_id, test_cmd, test_args)
59
60    def read(self, pin):
61        """ Reads the current value of a GPIO (0 or 1).
62
63        Args:
64           pin: uint32, pin number of GPIO
65
66        Returns:
67           uint8. Current value of GPIO.
68        """
69        test_cmd = "gpio_facade.Read"
70        test_args = {"pin": pin}
71        test_id = self.build_id(self.test_counter)
72        self.test_counter += 1
73
74        return self.send_command(test_id, test_cmd, test_args)
75
76    def write(self, pin, value):
77        """ Sets the current value of the GPIO (any non-zero value maps to 1).
78
79        Args:
80           pin: uint32, pin number of GPIO
81           value: uint8, value of GPIO
82
83        Returns:
84           None if success, prints error message if error.
85        """
86        test_cmd = "gpio_facade.Write"
87        test_args = {"pin": pin, "value": value}
88        test_id = self.build_id(self.test_counter)
89        self.test_counter += 1
90
91        return self.send_command(test_id, test_cmd, test_args)
92