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tests/qtest: Check that EXTI fan-in irqs are correctly connected

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This commit adds a QTest that verifies each input line of a specific
EXTI OR gate can influence the output line.

Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240220184145.106107-3-ines.varhol@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Inès Varhol 2024-02-26 14:07:23 +00:00 committed by Peter Maydell
parent 5928ed26b3
commit 397424f87f
1 changed files with 37 additions and 0 deletions
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37
tests/qtest/stm32l4x5_exti-test.c
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@ -31,6 +31,7 @@
#define EXTI0_IRQ 6
#define EXTI1_IRQ 7
#define EXTI5_9_IRQ 23
#define EXTI35_IRQ 1
static void enable_nvic_irq(unsigned int n)
@ -499,6 +500,40 @@ static void test_interrupt(void)
g_assert_false(check_nvic_pending(EXTI1_IRQ));
}
static void test_orred_interrupts(void)
{
/*
* For lines EXTI5..9 (fanned-in to NVIC irq 23),
* test that raising the line pends interrupt
* 23 in NVIC.
*/
enable_nvic_irq(EXTI5_9_IRQ);
/* Check that there are no interrupts already pending in PR */
g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000);
/* Check that this specific interrupt isn't pending in NVIC */
g_assert_false(check_nvic_pending(EXTI5_9_IRQ));
/* Enable interrupt lines EXTI[5..9] */
exti_writel(EXTI_IMR1, (0x1F << 5));
/* Configure interrupt on rising edge */
exti_writel(EXTI_RTSR1, (0x1F << 5));
/* Raise GPIO line i, check that the interrupt is pending */
for (unsigned i = 5; i < 10; i++) {
exti_set_irq(i, 1);
g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 1 << i);
g_assert_true(check_nvic_pending(EXTI5_9_IRQ));
exti_writel(EXTI_PR1, 1 << i);
g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000);
g_assert_true(check_nvic_pending(EXTI5_9_IRQ));
unpend_nvic_irq(EXTI5_9_IRQ);
g_assert_false(check_nvic_pending(EXTI5_9_IRQ));
}
}
int main(int argc, char **argv)
{
int ret;
@ -515,6 +550,8 @@ int main(int argc, char **argv)
qtest_add_func("stm32l4x5/exti/masked_interrupt", test_masked_interrupt);
qtest_add_func("stm32l4x5/exti/interrupt", test_interrupt);
qtest_add_func("stm32l4x5/exti/test_edge_selector", test_edge_selector);
qtest_add_func("stm32l4x5/exti/test_orred_interrupts",
test_orred_interrupts);
qtest_start("-machine b-l475e-iot01a");
ret = g_test_run();