esp-idf/examples/cxx/experimental/experimental_cpp_component/test/test_i2c.cpp

262 lines
8.4 KiB
C++
Raw Normal View History

/*
* SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
2020-02-04 13:08:41 -05:00
#include "unity.h"
#include "unity_cxx.hpp"
#include <limits>
#include <stdio.h>
#include <iostream>
#include "test_utils.h" // unity_send_signal
#ifdef __cpp_exceptions
#include "i2c_cxx.hpp"
#include "driver/i2c.h"
2020-02-04 13:08:41 -05:00
using namespace std;
using namespace idf;
#define ADDR 0x47
#define MAGIC_TEST_NUMBER 47
static constexpr I2CNumber I2C_SLAVE_NUM(I2CNumber::I2C0()); /*!<I2C port number for slave dev */
#if CONFIG_IDF_TARGET_ESP32C3
#define I2C_SLAVE_SCL_IO 5 /*!<gpio number for i2c slave clock */
#define I2C_SLAVE_SDA_IO 6 /*!<gpio number for i2c slave data */
#else
2020-02-04 13:08:41 -05:00
#define I2C_SLAVE_SCL_IO 19 /*!<gpio number for i2c slave clock */
#define I2C_SLAVE_SDA_IO 18 /*!<gpio number for i2c slave data */
#endif
2020-02-04 13:08:41 -05:00
#if CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP8684
static constexpr I2CNumber I2C_MASTER_NUM(I2CNumber::I2C0()); /*!< I2C port number for master dev */
#define I2C_MASTER_SCL_IO 5 /*!<gpio number for i2c master clock */
#define I2C_MASTER_SDA_IO 6 /*!<gpio number for i2c master data */
#else
static constexpr I2CNumber I2C_MASTER_NUM(I2CNumber::I2C1()); /*!< I2C port number for master dev */
2020-02-04 13:08:41 -05:00
#define I2C_MASTER_SCL_IO 19 /*!< gpio number for I2C master clock */
#define I2C_MASTER_SDA_IO 18 /*!< gpio number for I2C master data */
#endif
2020-02-04 13:08:41 -05:00
struct MasterFixture {
MasterFixture(const vector<uint8_t> &data_arg = {47u}) :
master(new I2CMaster(I2CNumber(I2C_MASTER_NUM),
SCL_GPIO(I2C_MASTER_SCL_IO),
SDA_GPIO(I2C_MASTER_SDA_IO),
Frequency(400000))),
2020-02-04 13:08:41 -05:00
data(data_arg) { }
std::shared_ptr<I2CMaster> master;
vector<uint8_t> data;
};
// TODO The I2C driver tests are disabled, so disable them here, too. Probably due to no runners.
#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2, ESP32S3)
2020-02-04 13:08:41 -05:00
static void i2c_slave_read_raw_byte(void)
{
I2CSlave slave(I2CNumber(I2C_SLAVE_NUM), SCL_GPIO(I2C_SLAVE_SCL_IO), SDA_GPIO(I2C_SLAVE_SDA_IO), I2CAddress(ADDR), 512, 512);
2020-02-04 13:08:41 -05:00
uint8_t buffer = 0;
unity_send_signal("slave init");
unity_wait_for_signal("master write");
TEST_ASSERT_EQUAL(1, slave.read_raw(&buffer, 1, chrono::milliseconds(1000)));
TEST_ASSERT_EQUAL(MAGIC_TEST_NUMBER, buffer);
}
static void i2c_slave_write_raw_byte(void)
{
I2CSlave slave(I2CNumber(I2C_SLAVE_NUM), SCL_GPIO(I2C_SLAVE_SCL_IO), SDA_GPIO(I2C_SLAVE_SDA_IO), I2CAddress(ADDR), 512, 512);
2020-02-04 13:08:41 -05:00
uint8_t WRITE_BUFFER = MAGIC_TEST_NUMBER;
unity_wait_for_signal("master init");
TEST_ASSERT_EQUAL(1, slave.write_raw(&WRITE_BUFFER, 1, chrono::milliseconds(1000)));
unity_send_signal("slave write");
// This last synchronization is necessary to prevent slave from going out of scope hence de-initializing already
// before master has read
unity_wait_for_signal("master read done");
}
static void i2c_slave_read_multiple_raw_bytes(void)
{
I2CSlave slave(I2CNumber(I2C_SLAVE_NUM), SCL_GPIO(I2C_SLAVE_SCL_IO), SDA_GPIO(I2C_SLAVE_SDA_IO), I2CAddress(ADDR), 512, 512);
2020-02-04 13:08:41 -05:00
uint8_t buffer [8] = {};
unity_send_signal("slave init");
unity_wait_for_signal("master write");
TEST_ASSERT_EQUAL(8, slave.read_raw(buffer, 8, chrono::milliseconds(1000)));
for (int i = 0; i < 8; i++) {
TEST_ASSERT_EQUAL(i, buffer[i]);
}
}
static void i2c_slave_write_multiple_raw_bytes(void)
{
I2CSlave slave(I2CNumber(I2C_SLAVE_NUM), SCL_GPIO(I2C_SLAVE_SCL_IO), SDA_GPIO(I2C_SLAVE_SDA_IO), I2CAddress(ADDR), 512, 512);
2020-02-04 13:08:41 -05:00
uint8_t WRITE_BUFFER [8] = {0, 1, 2, 3, 4, 5, 6, 7};
unity_wait_for_signal("master init");
TEST_ASSERT_EQUAL(8, slave.write_raw(WRITE_BUFFER, 8, chrono::milliseconds(1000)));
unity_send_signal("slave write");
unity_wait_for_signal("master read done");
}
static void i2c_slave_composed_trans(void)
{
I2CSlave slave(I2CNumber(I2C_SLAVE_NUM), SCL_GPIO(I2C_SLAVE_SCL_IO), SDA_GPIO(I2C_SLAVE_SDA_IO), I2CAddress(ADDR), 512, 512);
2020-02-04 13:08:41 -05:00
size_t BUF_SIZE = 2;
const uint8_t SLAVE_WRITE_BUFFER [BUF_SIZE] = {0xde, 0xad};
uint8_t slave_read_buffer = 0;
unity_send_signal("slave init");
TEST_ASSERT_EQUAL(BUF_SIZE, slave.write_raw(SLAVE_WRITE_BUFFER, BUF_SIZE, chrono::milliseconds(1000)));
unity_wait_for_signal("master transfer");
TEST_ASSERT_EQUAL(1, slave.read_raw(&slave_read_buffer, 1, chrono::milliseconds(1000)));
TEST_ASSERT_EQUAL(MAGIC_TEST_NUMBER, slave_read_buffer);
}
static void i2c_master_read_raw_byte(void)
{
MasterFixture fix;
unity_send_signal("master init");
unity_wait_for_signal("slave write");
std::shared_ptr<I2CRead> reader(new I2CRead(1));
future<vector<uint8_t> > fut = fix.master->transfer(I2CAddress(ADDR), reader);
2020-02-04 13:08:41 -05:00
vector<uint8_t> data;
data = fut.get();
unity_send_signal("master read done");
TEST_ASSERT_EQUAL(1, data.size());
TEST_ASSERT_EQUAL(MAGIC_TEST_NUMBER, data[0]);
}
TEST_CASE_MULTIPLE_DEVICES("I2CMaster read one byte", "[cxx i2c][test_env=UT_T2_I2C][timeout=150]",
i2c_master_read_raw_byte, i2c_slave_write_raw_byte);
static void i2c_master_write_raw_byte(void)
{
MasterFixture fix;
unity_wait_for_signal("slave init");
std::shared_ptr<I2CWrite> writer(new I2CWrite(fix.data));
future<void> fut = fix.master->transfer(I2CAddress(ADDR), writer);
2020-02-04 13:08:41 -05:00
fut.get();
unity_send_signal("master write");
}
TEST_CASE_MULTIPLE_DEVICES("I2CMaster write one byte", "[cxx i2c][test_env=UT_T2_I2C][timeout=150]",
i2c_master_write_raw_byte, i2c_slave_read_raw_byte);
static void i2c_master_read_multiple_raw_bytes(void)
{
MasterFixture fix;
unity_send_signal("master init");
unity_wait_for_signal("slave write");
std::shared_ptr<I2CRead> reader(new I2CRead(8));
future<vector<uint8_t> > fut = fix.master->transfer(I2CAddress(ADDR), reader);
2020-02-04 13:08:41 -05:00
vector<uint8_t> data = fut.get();
unity_send_signal("master read done");
TEST_ASSERT_EQUAL(8, data.size());
for (int i = 0; i < 8; i++) {
TEST_ASSERT_EQUAL(i, data[i]);
}
}
TEST_CASE_MULTIPLE_DEVICES("I2CMaster read multiple bytes", "[cxx i2c][test_env=UT_T2_I2C][timeout=150]",
i2c_master_read_multiple_raw_bytes, i2c_slave_write_multiple_raw_bytes);
static void i2c_master_write_multiple_raw_bytes(void)
{
MasterFixture fix({0, 1, 2, 3, 4, 5, 6, 7});
unity_wait_for_signal("slave init");
std::shared_ptr<I2CWrite> writer(new I2CWrite(fix.data));
future<void> fut = fix.master->transfer(I2CAddress(ADDR), writer);
2020-02-04 13:08:41 -05:00
fut.get();
unity_send_signal("master write");
}
TEST_CASE_MULTIPLE_DEVICES("I2CMaster write multiple bytes", "[cxx i2c][test_env=UT_T2_I2C][timeout=150]",
i2c_master_write_multiple_raw_bytes, i2c_slave_read_multiple_raw_bytes);
static void i2c_master_sync_transfer(void)
{
MasterFixture fix;
size_t READ_SIZE = 2;
const uint8_t DESIRED_READ [READ_SIZE] = {0xde, 0xad};
unity_wait_for_signal("slave init");
vector<uint8_t> read_data = fix.master->sync_transfer(I2CAddress(ADDR), fix.data, READ_SIZE);
2020-02-04 13:08:41 -05:00
unity_send_signal("master transfer");
TEST_ASSERT_EQUAL(READ_SIZE, read_data.size());
for (int i = 0; i < READ_SIZE; i++) {
TEST_ASSERT_EQUAL(DESIRED_READ[i], read_data[i]);
}
}
TEST_CASE_MULTIPLE_DEVICES("I2CMaster sync transfer", "[cxx i2c][test_env=UT_T2_I2C][timeout=150]",
i2c_master_sync_transfer, i2c_slave_composed_trans);
static void i2c_master_composed_trans(void)
{
MasterFixture fix;
size_t BUF_SIZE = 2;
const uint8_t SLAVE_WRITE_BUFFER [BUF_SIZE] = {0xde, 0xad};
std::shared_ptr<I2CComposed> composed_transfer(new I2CComposed);
composed_transfer->add_write({47u});
composed_transfer->add_read(BUF_SIZE);
unity_wait_for_signal("slave init");
future<vector<vector<uint8_t> > > result = fix.master->transfer(I2CAddress(ADDR), composed_transfer);
2020-02-04 13:08:41 -05:00
unity_send_signal("master transfer");
vector<vector<uint8_t> > read_data = result.get();
TEST_ASSERT_EQUAL(1, read_data.size());
TEST_ASSERT_EQUAL(2, read_data[0].size());
for (int i = 0; i < BUF_SIZE; i++) {
TEST_ASSERT_EQUAL(SLAVE_WRITE_BUFFER[i], read_data[0][i]);
}
}
TEST_CASE_MULTIPLE_DEVICES("I2CMaster Composed transfer", "[cxx i2c][test_env=UT_T2_I2C][timeout=150]",
i2c_master_composed_trans, i2c_slave_composed_trans);
#endif //TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2, ESP32S3)
2020-02-04 13:08:41 -05:00
#endif // __cpp_exceptions