| // 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_spi_mcuxpresso/flexspi.h" |
| |
| #include "board.h" |
| #include "pw_bytes/array.h" |
| #include "pw_status/status.h" |
| #include "pw_unit_test/framework.h" |
| |
| namespace pw::spi { |
| namespace { |
| |
| FLEXIO_SPI_Type flexio_spi_config = { |
| .flexioBase = reinterpret_cast<FLEXIO_Type*>(FLEXIO0), |
| .SDOPinIndex = 13, |
| .SDIPinIndex = 14, |
| .SCKPinIndex = 15, |
| .CSnPinIndex = 12, |
| .shifterIndex = {0, 2}, |
| .timerIndex = {0, 1}}; |
| constexpr uint32_t baud_rate_bps = 500000; |
| constexpr Config configuration{.polarity = ClockPolarity::kActiveLow, |
| .phase = ClockPhase::kFallingEdge, |
| .bits_per_word = BitsPerWord(8), |
| .bit_order = BitOrder::kMsbFirst}; |
| |
| TEST(Configure, ConfigurationSuccess) { |
| McuxpressoFlexIoInitiator spi( |
| flexio_spi_config, CLOCK_GetFlexioClkFreq(), baud_rate_bps); |
| auto status = spi.Configure(configuration); |
| |
| EXPECT_EQ(status, OkStatus()); |
| } |
| |
| TEST(Configure, RepeatedConfigurationSuccess) { |
| McuxpressoFlexIoInitiator spi( |
| flexio_spi_config, CLOCK_GetFlexioClkFreq(), baud_rate_bps); |
| auto status = spi.Configure(configuration); |
| EXPECT_EQ(status, OkStatus()); |
| |
| status = spi.Configure(configuration); |
| EXPECT_EQ(status, OkStatus()); |
| } |
| |
| TEST(ReadWrite, PollingWriteSuccess) { |
| const auto blocking = true; |
| constexpr auto source = bytes::Array<0x01, 0x02, 0x03, 0x04, 0x05>(); |
| static auto destination = bytes::Array<0xff, 0xff, 0xff, 0xff, 0xff>(); |
| |
| McuxpressoFlexIoInitiator spi( |
| flexio_spi_config, CLOCK_GetFlexioClkFreq(), baud_rate_bps, blocking); |
| auto status = spi.Configure(configuration); |
| ASSERT_EQ(status, OkStatus()); |
| |
| status = spi.WriteRead(source, destination); |
| EXPECT_EQ(status, OkStatus()); |
| } |
| |
| TEST(ReadWrite, IRQWriteSuccess) { |
| const auto blocking = false; |
| constexpr auto source = bytes::Array<0x01, 0x02, 0x03, 0x04, 0x05>(); |
| static auto destination = bytes::Array<0xff, 0xff, 0xff, 0xff, 0xff>(); |
| McuxpressoFlexIoInitiator spi( |
| flexio_spi_config, CLOCK_GetFlexioClkFreq(), baud_rate_bps, blocking); |
| auto status = spi.Configure(configuration); |
| ASSERT_EQ(status, OkStatus()); |
| |
| status = spi.WriteRead(source, destination); |
| EXPECT_EQ(status, OkStatus()); |
| } |
| |
| TEST(ReadWrite, WriteOnlySuccess) { |
| const auto blocking = false; |
| constexpr auto source = bytes::Array<0x01, 0x02, 0x03, 0x04, 0x05>(); |
| McuxpressoFlexIoInitiator spi( |
| flexio_spi_config, CLOCK_GetFlexioClkFreq(), baud_rate_bps, blocking); |
| auto status = spi.Configure(configuration); |
| ASSERT_EQ(status, OkStatus()); |
| |
| status = spi.WriteRead(source, {}); |
| EXPECT_EQ(status, OkStatus()); |
| } |
| |
| } // namespace |
| } // namespace pw::spi |