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Merge pull request #21009 from mguetschow/tests-uart-wait-for-rx

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tests/periph/uart: minor improvements
This commit is contained in:
Marian Buschsieweke 2024-11-20 07:44:09 +00:00 committed by GitHub
commit 7c442283f4
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1 changed files with 25 additions and 10 deletions
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35
tests/periph/uart/main.c
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@ -124,19 +124,28 @@ static int _self_test(uart_t dev, unsigned baud)
{
const char test_string[] = "Hello UART!";
if (uart_init(UART_DEV(dev), baud, rx_cb, (void *)(uintptr_t)dev)) {
printf("error configuring %u baud\n", baud);
return -1;
int res = uart_init(UART_DEV(dev), baud, rx_cb, (void *)(uintptr_t)dev);
if (res == -ENOTSUP) {
printf("warning: unsupported baudrate %u\n", baud);
return 0;
}
else if (res != 0) {
puts("error during uart_init");
goto failure;
}
test_mode = true;
uart_write(dev, (uint8_t*)test_string, sizeof(test_string));
/* wait 1ms for rx callback to be triggered by HW */
ztimer_sleep(ZTIMER_MSEC, 1);
for (unsigned i = 0; i < sizeof(test_string); ++i) {
int c = ringbuffer_get_one(&ctx[dev].rx_buf);
if (c == -1) {
printf("missing char 0x%x in rx_buf at index %u\n", test_string[i], i);
goto failure;
}
if (c != test_string[i]) {
printf("mismatch at index %u: %x != %x\n", i, c, test_string[i]);
return -1;
printf("mismatch at index %u: 0x%x != 0x%x\n", i, c, test_string[i]);
goto failure;
}
}
@ -150,14 +159,14 @@ static int _self_test(uart_t dev, unsigned baud)
int c = ringbuffer_get_one(&ctx[dev].rx_buf);
if (c != STX) {
printf("expected start condition, got %x\n", c);
return -1;
goto failure;
}
c = ringbuffer_get_one(&ctx[dev].rx_buf);
if (c != test_string[i]) {
printf("mismatch at index %u: %x != %x, start condition reported\n",
i, c, test_string[i]);
return -1;
goto failure;
}
}
uart_rxstart_irq_disable(dev);
@ -171,8 +180,12 @@ static int _self_test(uart_t dev, unsigned baud)
uart_collision_detect_disable(dev);
#endif
test_mode = false;
return 0;
failure:
/* flush ringbuffer */
ringbuffer_remove(&ctx[dev].rx_buf, UART_BUFSIZE);
return -1;
}
static void *printer(void *arg)
@ -384,12 +397,14 @@ static int cmd_test(int argc, char **argv)
puts("[START]");
/* run self test with different baud rates */
test_mode = true;
for (unsigned i = 1; i <= 12; ++i) {
if (_self_test(dev, 9600 * i)) {
puts("[FAILURE]");
return -1;
}
}
test_mode = false;
puts("[SUCCESS]");
return 0;