| // Copyright 2023 The Pigweed Authors |
| // |
| // 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 |
| // |
| // https://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. |
| #include "pw_digital_io/digital_io.h" |
| |
| #include "pw_digital_io_rp2040/digital_io.h" |
| #include "pw_result/result.h" |
| #include "pw_unit_test/framework.h" |
| |
| using pw::digital_io::Rp2040DigitalIn; |
| using pw::digital_io::Rp2040DigitalInOut; |
| |
| namespace pw::digital_io { |
| namespace { |
| |
| constexpr Rp2040Config output_pin_config{ |
| .pin = 15, |
| .polarity = Polarity::kActiveLow, |
| }; |
| constexpr Rp2040Config input_pin_config{ |
| .pin = 16, |
| .polarity = Polarity::kActiveHigh, |
| }; |
| Rp2040DigitalInOut output_pin(output_pin_config); |
| Rp2040DigitalIn input_pin(input_pin_config); |
| |
| TEST(DigitalIoTest, PhysicalToLogical) { |
| ASSERT_EQ(State::kActive, output_pin_config.PhysicalToLogical(false)); |
| ASSERT_EQ(State::kInactive, output_pin_config.PhysicalToLogical(true)); |
| ASSERT_EQ(State::kActive, input_pin_config.PhysicalToLogical(true)); |
| ASSERT_EQ(State::kInactive, input_pin_config.PhysicalToLogical(false)); |
| } |
| |
| TEST(DigitalIoTest, LogicalToPhysical) { |
| ASSERT_EQ(false, output_pin_config.LogicalToPhysical(State::kActive)); |
| ASSERT_EQ(true, output_pin_config.LogicalToPhysical(State::kInactive)); |
| ASSERT_EQ(true, input_pin_config.LogicalToPhysical(State::kActive)); |
| ASSERT_EQ(false, input_pin_config.LogicalToPhysical(State::kInactive)); |
| } |
| |
| TEST(DigitalIoTest, Init) { |
| // Simple test only meant to ensure module is compiled. |
| output_pin.Enable(); |
| output_pin.SetState(pw::digital_io::State::kActive); |
| |
| input_pin.Enable(); |
| Result<State> state_result = input_pin.GetState(); |
| ASSERT_EQ(OkStatus(), state_result.status()); |
| ASSERT_EQ(State::kInactive, state_result.value()); |
| } |
| |
| } // namespace |
| } // namespace pw::digital_io |