@@ -393,6 +393,47 @@ 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", "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 that 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 +540,7 @@ 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);
Exercise the DETECT mechanism of the GPIO peripheral. Signed-off-by: Chris Laplante <chris@laplante.io> --- tests/qtest/microbit-test.c | 42 +++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+)