mirror of
https://github.com/espressif/esp-idf.git
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262 lines
8.4 KiB
C++
262 lines
8.4 KiB
C++
/*
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* SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "unity.h"
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#include "unity_cxx.hpp"
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#include <limits>
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#include <stdio.h>
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#include <iostream>
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#include "test_utils.h" // unity_send_signal
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#ifdef __cpp_exceptions
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#include "i2c_cxx.hpp"
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#include "driver/i2c.h"
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using namespace std;
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using namespace idf;
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#define ADDR 0x47
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#define MAGIC_TEST_NUMBER 47
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static constexpr I2CNumber I2C_SLAVE_NUM(I2CNumber::I2C0()); /*!<I2C port number for slave dev */
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#if CONFIG_IDF_TARGET_ESP32C3
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#define I2C_SLAVE_SCL_IO 5 /*!<gpio number for i2c slave clock */
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#define I2C_SLAVE_SDA_IO 6 /*!<gpio number for i2c slave data */
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#else
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#define I2C_SLAVE_SCL_IO 19 /*!<gpio number for i2c slave clock */
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#define I2C_SLAVE_SDA_IO 18 /*!<gpio number for i2c slave data */
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#endif
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#if CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32C2
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static constexpr I2CNumber I2C_MASTER_NUM(I2CNumber::I2C0()); /*!< I2C port number for master dev */
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#define I2C_MASTER_SCL_IO 5 /*!<gpio number for i2c master clock */
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#define I2C_MASTER_SDA_IO 6 /*!<gpio number for i2c master data */
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#else
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static constexpr I2CNumber I2C_MASTER_NUM(I2CNumber::I2C1()); /*!< I2C port number for master dev */
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#define I2C_MASTER_SCL_IO 19 /*!< gpio number for I2C master clock */
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#define I2C_MASTER_SDA_IO 18 /*!< gpio number for I2C master data */
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#endif
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struct MasterFixture {
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MasterFixture(const vector<uint8_t> &data_arg = {47u}) :
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master(new I2CMaster(I2CNumber(I2C_MASTER_NUM),
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SCL_GPIO(I2C_MASTER_SCL_IO),
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SDA_GPIO(I2C_MASTER_SDA_IO),
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Frequency(400000))),
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data(data_arg) { }
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std::shared_ptr<I2CMaster> master;
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vector<uint8_t> data;
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};
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// TODO The I2C driver tests are disabled, so disable them here, too. Probably due to no runners.
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#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2, ESP32S3, ESP32C2)
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static void i2c_slave_read_raw_byte(void)
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{
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I2CSlave slave(I2CNumber(I2C_SLAVE_NUM), SCL_GPIO(I2C_SLAVE_SCL_IO), SDA_GPIO(I2C_SLAVE_SDA_IO), I2CAddress(ADDR), 512, 512);
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uint8_t buffer = 0;
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unity_send_signal("slave init");
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unity_wait_for_signal("master write");
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TEST_ASSERT_EQUAL(1, slave.read_raw(&buffer, 1, chrono::milliseconds(1000)));
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TEST_ASSERT_EQUAL(MAGIC_TEST_NUMBER, buffer);
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}
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static void i2c_slave_write_raw_byte(void)
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{
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I2CSlave slave(I2CNumber(I2C_SLAVE_NUM), SCL_GPIO(I2C_SLAVE_SCL_IO), SDA_GPIO(I2C_SLAVE_SDA_IO), I2CAddress(ADDR), 512, 512);
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uint8_t WRITE_BUFFER = MAGIC_TEST_NUMBER;
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unity_wait_for_signal("master init");
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TEST_ASSERT_EQUAL(1, slave.write_raw(&WRITE_BUFFER, 1, chrono::milliseconds(1000)));
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unity_send_signal("slave write");
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// This last synchronization is necessary to prevent slave from going out of scope hence de-initializing already
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// before master has read
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unity_wait_for_signal("master read done");
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}
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static void i2c_slave_read_multiple_raw_bytes(void)
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{
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I2CSlave slave(I2CNumber(I2C_SLAVE_NUM), SCL_GPIO(I2C_SLAVE_SCL_IO), SDA_GPIO(I2C_SLAVE_SDA_IO), I2CAddress(ADDR), 512, 512);
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uint8_t buffer [8] = {};
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unity_send_signal("slave init");
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unity_wait_for_signal("master write");
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TEST_ASSERT_EQUAL(8, slave.read_raw(buffer, 8, chrono::milliseconds(1000)));
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for (int i = 0; i < 8; i++) {
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TEST_ASSERT_EQUAL(i, buffer[i]);
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}
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}
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static void i2c_slave_write_multiple_raw_bytes(void)
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{
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I2CSlave slave(I2CNumber(I2C_SLAVE_NUM), SCL_GPIO(I2C_SLAVE_SCL_IO), SDA_GPIO(I2C_SLAVE_SDA_IO), I2CAddress(ADDR), 512, 512);
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uint8_t WRITE_BUFFER [8] = {0, 1, 2, 3, 4, 5, 6, 7};
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unity_wait_for_signal("master init");
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TEST_ASSERT_EQUAL(8, slave.write_raw(WRITE_BUFFER, 8, chrono::milliseconds(1000)));
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unity_send_signal("slave write");
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unity_wait_for_signal("master read done");
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}
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static void i2c_slave_composed_trans(void)
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{
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I2CSlave slave(I2CNumber(I2C_SLAVE_NUM), SCL_GPIO(I2C_SLAVE_SCL_IO), SDA_GPIO(I2C_SLAVE_SDA_IO), I2CAddress(ADDR), 512, 512);
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size_t BUF_SIZE = 2;
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const uint8_t SLAVE_WRITE_BUFFER [BUF_SIZE] = {0xde, 0xad};
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uint8_t slave_read_buffer = 0;
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unity_send_signal("slave init");
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TEST_ASSERT_EQUAL(BUF_SIZE, slave.write_raw(SLAVE_WRITE_BUFFER, BUF_SIZE, chrono::milliseconds(1000)));
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unity_wait_for_signal("master transfer");
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TEST_ASSERT_EQUAL(1, slave.read_raw(&slave_read_buffer, 1, chrono::milliseconds(1000)));
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TEST_ASSERT_EQUAL(MAGIC_TEST_NUMBER, slave_read_buffer);
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}
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static void i2c_master_read_raw_byte(void)
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{
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MasterFixture fix;
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unity_send_signal("master init");
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unity_wait_for_signal("slave write");
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std::shared_ptr<I2CRead> reader(new I2CRead(1));
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future<vector<uint8_t> > fut = fix.master->transfer(I2CAddress(ADDR), reader);
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vector<uint8_t> data;
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data = fut.get();
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unity_send_signal("master read done");
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TEST_ASSERT_EQUAL(1, data.size());
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TEST_ASSERT_EQUAL(MAGIC_TEST_NUMBER, data[0]);
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}
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TEST_CASE_MULTIPLE_DEVICES("I2CMaster read one byte", "[cxx i2c][test_env=UT_T2_I2C][timeout=150]",
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i2c_master_read_raw_byte, i2c_slave_write_raw_byte);
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static void i2c_master_write_raw_byte(void)
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{
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MasterFixture fix;
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unity_wait_for_signal("slave init");
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std::shared_ptr<I2CWrite> writer(new I2CWrite(fix.data));
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future<void> fut = fix.master->transfer(I2CAddress(ADDR), writer);
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fut.get();
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unity_send_signal("master write");
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}
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TEST_CASE_MULTIPLE_DEVICES("I2CMaster write one byte", "[cxx i2c][test_env=UT_T2_I2C][timeout=150]",
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i2c_master_write_raw_byte, i2c_slave_read_raw_byte);
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static void i2c_master_read_multiple_raw_bytes(void)
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{
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MasterFixture fix;
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unity_send_signal("master init");
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unity_wait_for_signal("slave write");
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std::shared_ptr<I2CRead> reader(new I2CRead(8));
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future<vector<uint8_t> > fut = fix.master->transfer(I2CAddress(ADDR), reader);
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vector<uint8_t> data = fut.get();
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unity_send_signal("master read done");
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TEST_ASSERT_EQUAL(8, data.size());
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for (int i = 0; i < 8; i++) {
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TEST_ASSERT_EQUAL(i, data[i]);
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}
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}
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TEST_CASE_MULTIPLE_DEVICES("I2CMaster read multiple bytes", "[cxx i2c][test_env=UT_T2_I2C][timeout=150]",
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i2c_master_read_multiple_raw_bytes, i2c_slave_write_multiple_raw_bytes);
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static void i2c_master_write_multiple_raw_bytes(void)
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{
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MasterFixture fix({0, 1, 2, 3, 4, 5, 6, 7});
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unity_wait_for_signal("slave init");
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std::shared_ptr<I2CWrite> writer(new I2CWrite(fix.data));
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future<void> fut = fix.master->transfer(I2CAddress(ADDR), writer);
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fut.get();
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unity_send_signal("master write");
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}
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TEST_CASE_MULTIPLE_DEVICES("I2CMaster write multiple bytes", "[cxx i2c][test_env=UT_T2_I2C][timeout=150]",
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i2c_master_write_multiple_raw_bytes, i2c_slave_read_multiple_raw_bytes);
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static void i2c_master_sync_transfer(void)
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{
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MasterFixture fix;
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size_t READ_SIZE = 2;
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const uint8_t DESIRED_READ [READ_SIZE] = {0xde, 0xad};
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unity_wait_for_signal("slave init");
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vector<uint8_t> read_data = fix.master->sync_transfer(I2CAddress(ADDR), fix.data, READ_SIZE);
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unity_send_signal("master transfer");
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TEST_ASSERT_EQUAL(READ_SIZE, read_data.size());
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for (int i = 0; i < READ_SIZE; i++) {
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TEST_ASSERT_EQUAL(DESIRED_READ[i], read_data[i]);
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}
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}
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TEST_CASE_MULTIPLE_DEVICES("I2CMaster sync transfer", "[cxx i2c][test_env=UT_T2_I2C][timeout=150]",
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i2c_master_sync_transfer, i2c_slave_composed_trans);
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static void i2c_master_composed_trans(void)
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{
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MasterFixture fix;
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size_t BUF_SIZE = 2;
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const uint8_t SLAVE_WRITE_BUFFER [BUF_SIZE] = {0xde, 0xad};
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std::shared_ptr<I2CComposed> composed_transfer(new I2CComposed);
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composed_transfer->add_write({47u});
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composed_transfer->add_read(BUF_SIZE);
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unity_wait_for_signal("slave init");
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future<vector<vector<uint8_t> > > result = fix.master->transfer(I2CAddress(ADDR), composed_transfer);
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unity_send_signal("master transfer");
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vector<vector<uint8_t> > read_data = result.get();
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TEST_ASSERT_EQUAL(1, read_data.size());
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TEST_ASSERT_EQUAL(2, read_data[0].size());
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for (int i = 0; i < BUF_SIZE; i++) {
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TEST_ASSERT_EQUAL(SLAVE_WRITE_BUFFER[i], read_data[0][i]);
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}
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}
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TEST_CASE_MULTIPLE_DEVICES("I2CMaster Composed transfer", "[cxx i2c][test_env=UT_T2_I2C][timeout=150]",
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i2c_master_composed_trans, i2c_slave_composed_trans);
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#endif //TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2, ESP32S3)
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#endif // __cpp_exceptions
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