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qtest: microbit-test: add tests for nRF51 DETECT

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Exercise the DETECT mechanism of the GPIO peripheral.

Signed-off-by: Chris Laplante <chris@laplante.io>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230728160324.1159090-7-chris@laplante.io
[PMM: fixed coding style nits]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Chris Laplante 2023-08-22 17:31:02 +01:00 committed by Peter Maydell
parent c7bb6fa6af
commit a9c9bbee85
1 changed files with 44 additions and 0 deletions
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44
tests/qtest/microbit-test.c
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@ -393,6 +393,49 @@ static void test_nrf51_gpio(void)
qtest_quit(qts);
}
static void test_nrf51_gpio_detect(void)
{
QTestState *qts = qtest_init("-M microbit");
int i;
/* Connect input buffer on pins 1-7, configure SENSE for high level */
for (i = 1; i <= 7; i++) {
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START + i * 4,
deposit32(0, 16, 2, 2));
}
qtest_irq_intercept_out_named(qts, "/machine/nrf51/gpio", "detect");
for (i = 1; i <= 7; i++) {
/* Set pin high */
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", i, 1);
uint32_t actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_IN);
g_assert_cmpuint(actual, ==, 1 << i);
/* Check that DETECT is high */
g_assert_true(qtest_get_irq(qts, 0));
/* Set pin low, check that DETECT goes low. */
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", i, 0);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_IN);
g_assert_cmpuint(actual, ==, 0x0);
g_assert_false(qtest_get_irq(qts, 0));
}
/* Set pin 0 high, check that DETECT doesn't fire */
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", 0, 1);
g_assert_false(qtest_get_irq(qts, 0));
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", 0, 0);
/* Set pins 1, 2, and 3 high, then set 3 low. Check DETECT is still high */
for (i = 1; i <= 3; i++) {
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", i, 1);
}
g_assert_true(qtest_get_irq(qts, 0));
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", 3, 0);
g_assert_true(qtest_get_irq(qts, 0));
}
static void timer_task(QTestState *qts, hwaddr task)
{
qtest_writel(qts, NRF51_TIMER_BASE + task, NRF51_TRIGGER_TASK);
@ -499,6 +542,7 @@ int main(int argc, char **argv)
qtest_add_func("/microbit/nrf51/uart", test_nrf51_uart);
qtest_add_func("/microbit/nrf51/gpio", test_nrf51_gpio);
qtest_add_func("/microbit/nrf51/gpio_detect", test_nrf51_gpio_detect);
qtest_add_func("/microbit/nrf51/nvmc", test_nrf51_nvmc);
qtest_add_func("/microbit/nrf51/timer", test_nrf51_timer);
qtest_add_func("/microbit/microbit/i2c", test_microbit_i2c);