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tests: uart_async_api: update test for dma usage

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1. ensure the two dma buffers all aligned with 32 bits
2. clean the rx_data_idx at test begin

Signed-off-by: Hake Huang <hake.huang@oss.nxp.com>
This commit is contained in:
Hake Huang 2024-10-02 12:28:53 +00:00 • committed by Anas Nashif
commit 193bfabd3f
1 changed files with 14 additions and 9 deletions
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23
tests/drivers/uart/uart_async_api/src/test_uart_async.c
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@ -324,10 +324,15 @@ ZTEST_USER(uart_async_multi_rx, test_multiple_rx_enable)
}
#if NOCACHE_MEM
static __aligned(32) uint8_t chained_read_buf[2][8] __used __NOCACHE;
/* To ensure 32-bit alignment of the buffer array,
* the two arrays are defined instead using an array of arrays
*/
static __aligned(32) uint8_t chained_read_buf_0[8] __used __NOCACHE;
static __aligned(32) uint8_t chained_read_buf_1[8] __used __NOCACHE;
static __aligned(32) uint8_t chained_cpy_buf[10] __used __NOCACHE;
#else
ZTEST_BMEM uint8_t chained_read_buf[2][8];
ZTEST_BMEM uint8_t chained_read_buf_0[8];
ZTEST_BMEM uint8_t chained_read_buf_1[8];
ZTEST_BMEM uint8_t chained_cpy_buf[10];
#endif /* NOCACHE_MEM */
ZTEST_BMEM volatile uint8_t rx_data_idx;
@ -335,6 +340,8 @@ ZTEST_BMEM uint8_t rx_buf_idx;
ZTEST_BMEM uint8_t *read_ptr;
static uint8_t *chained_read_buf[2] = {chained_read_buf_0, chained_read_buf_1};
static void test_chained_read_callback(const struct device *dev,
struct uart_event *evt, void *user_data)
{
@ -352,9 +359,8 @@ static void test_chained_read_callback(const struct device *dev,
rx_data_idx += evt->data.rx.len;
break;
case UART_RX_BUF_REQUEST:
err = uart_rx_buf_rsp(dev,
chained_read_buf[rx_buf_idx],
sizeof(chained_read_buf[0]));
err = uart_rx_buf_rsp(dev, chained_read_buf[rx_buf_idx],
sizeof(chained_read_buf_0));
zassert_equal(err, 0);
rx_buf_idx = !rx_buf_idx ? 1 : 0;
break;
@ -387,11 +393,10 @@ ZTEST_USER(uart_async_chain_read, test_chained_read)
uint32_t rx_timeout_ms = 50;
int err;
err = uart_rx_enable(uart_dev,
chained_read_buf[rx_buf_idx++],
sizeof(chained_read_buf[0]),
err = uart_rx_enable(uart_dev, chained_read_buf[rx_buf_idx++], sizeof(chained_read_buf_0),
rx_timeout_ms * USEC_PER_MSEC);
zassert_equal(err, 0);
rx_data_idx = 0;
for (int i = 0; i < iter; i++) {
zassert_not_equal(k_sem_take(&rx_disabled, K_MSEC(10)),
@ -406,7 +411,7 @@ ZTEST_USER(uart_async_chain_read, test_chained_read)
"Unexpected amount of data received %d exp:%d",
rx_data_idx, sizeof(tx_buf));
zassert_equal(memcmp(tx_buf, chained_cpy_buf, sizeof(tx_buf)), 0,
"Buffers not equal");
"Buffers not equal exp %s, real %s", tx_buf, chained_cpy_buf);
rx_data_idx = 0;
}
uart_rx_disable(uart_dev);