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/*
* Copyright (c) 2006-2024 RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
*
*/
#include <rtthread.h>
#include "utest.h"
#include <rtdevice.h>
#include <stdlib.h>
#ifdef UTEST_SERIAL_TC
static struct rt_serial_device *serial;
static rt_err_t uart_find(void)
{
serial = (struct rt_serial_device *)rt_device_find(RT_SERIAL_TC_DEVICE_NAME);
if (serial == RT_NULL)
{
LOG_E("find %s device failed!\n", RT_SERIAL_TC_DEVICE_NAME);
return -RT_ERROR;
}
return RT_EOK;
}
static rt_err_t test_item(rt_uint8_t *uart_write_buffer, rt_uint32_t send_size)
{
rt_uint32_t old_tick;
rt_tick_t tick_diff;
rt_tick_t expect_time = send_size * 0.0868;
/* In interrupt mode, ticks may be inaccurate; compensation should be applied*/
if (send_size > 384)
{
expect_time -= send_size / 384;
}
old_tick = rt_tick_get();
rt_device_write(&serial->parent, 0, uart_write_buffer, send_size);
rt_device_control(&serial->parent, RT_SERIAL_CTRL_TX_FLUSH, RT_NULL);
tick_diff = rt_tick_get() - old_tick;
if (tick_diff < expect_time || tick_diff > expect_time + 10)
{
LOG_E("send_size [%4d], time required for TXB mode transmission to complete [%3d], expect_time [%3d]", send_size, tick_diff, expect_time);
return -RT_ERROR;
}
else
{
LOG_I("send_size [%4d], time required for TXB mode transmission to complete [%3d], expect_time [%3d]", send_size, tick_diff, expect_time);
}
return RT_EOK;
}
static rt_bool_t uart_api()
{
rt_err_t result = RT_EOK;
result = uart_find();
if (result != RT_EOK)
{
return RT_FALSE;
}
/* Reinitialize */
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
config.baud_rate = BAUD_RATE_115200;
config.rx_bufsz = RT_SERIAL_TC_RXBUF_SIZE;
config.tx_bufsz = RT_SERIAL_TC_TXBUF_SIZE * 5 + 10;
#ifdef RT_SERIAL_USING_DMA
config.dma_ping_bufsz = RT_SERIAL_TC_RXBUF_SIZE / 2;
#endif
rt_device_control(&serial->parent, RT_DEVICE_CTRL_CONFIG, &config);
result = rt_device_open(&serial->parent, RT_DEVICE_FLAG_RX_NON_BLOCKING | RT_DEVICE_FLAG_TX_BLOCKING);
if (result != RT_EOK)
{
LOG_E("Open uart device failed.");
return RT_FALSE;
}
rt_uint8_t *uart_write_buffer;
rt_uint32_t i;
rt_int32_t tx_timeout = 1;
uart_write_buffer = (rt_uint8_t *)rt_malloc(sizeof(rt_uint8_t) * (RT_SERIAL_TC_TXBUF_SIZE * 5 + 10));
rt_device_control(&serial->parent, RT_SERIAL_CTRL_SET_TX_TIMEOUT, (void *)&tx_timeout);
srand(rt_tick_get());
for (i = 0; i < RT_SERIAL_TC_SEND_ITERATIONS; i++)
{
if (RT_EOK != test_item(uart_write_buffer, RT_SERIAL_TC_TXBUF_SIZE * (rand() % 6)))
{
result = -RT_ERROR;
goto __exit;
}
if (RT_EOK != test_item(uart_write_buffer, RT_SERIAL_TC_TXBUF_SIZE * (rand() % 6) + 1))
{
result = -RT_ERROR;
goto __exit;
}
if (RT_EOK != test_item(uart_write_buffer, rand() % (RT_SERIAL_TC_TXBUF_SIZE * 5)))
{
result = -RT_ERROR;
goto __exit;
}
}
__exit:
rt_free(uart_write_buffer);
rt_device_close(&serial->parent);
rt_thread_mdelay(5);
return result == RT_EOK ? RT_TRUE : RT_FALSE;
}
static void tc_uart_api(void)
{
uassert_true(uart_api() == RT_TRUE);
}
static rt_err_t utest_tc_init(void)
{
return RT_EOK;
}
static rt_err_t utest_tc_cleanup(void)
{
rt_device_t uart_dev = rt_device_find(RT_SERIAL_TC_DEVICE_NAME);
while (rt_device_close(uart_dev) != -RT_ERROR);
return RT_EOK;
}
static void testcase(void)
{
UTEST_UNIT_RUN(tc_uart_api);
}
UTEST_TC_EXPORT(testcase, "testcases.drivers.uart_flush_txb", utest_tc_init, utest_tc_cleanup, 30);
#endif /* TC_UART_USING_TC */
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