diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/qtest/meson.build | 6 | ||||
| -rw-r--r-- | tests/qtest/stm32l4x5_exti-test.c | 524 | ||||
| -rw-r--r-- | tests/qtest/stm32l4x5_syscfg-test.c | 331 |
3 files changed, 861 insertions, 0 deletions
diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index 4293f3b133..d22434b14e 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -196,6 +196,11 @@ qtests_aspeed = \ ['aspeed_hace-test', 'aspeed_smc-test', 'aspeed_gpio-test'] + +qtests_stm32l4x5 = \ + ['stm32l4x5_exti-test', + 'stm32l4x5_syscfg-test'] + qtests_arm = \ (config_all_devices.has_key('CONFIG_MPS2') ? ['sse-timer-test'] : []) + \ (config_all_devices.has_key('CONFIG_CMSDK_APB_DUALTIMER') ? ['cmsdk-apb-dualtimer-test'] : []) + \ @@ -209,6 +214,7 @@ qtests_arm = \ (config_all_devices.has_key('CONFIG_TPM_TIS_I2C') ? ['tpm-tis-i2c-test'] : []) + \ (config_all_devices.has_key('CONFIG_VEXPRESS') ? ['test-arm-mptimer'] : []) + \ (config_all_devices.has_key('CONFIG_MICROBIT') ? ['microbit-test'] : []) + \ + (config_all_devices.has_key('CONFIG_STM32L4X5_SOC') ? qtests_stm32l4x5 : []) + \ ['arm-cpu-features', 'boot-serial-test'] diff --git a/tests/qtest/stm32l4x5_exti-test.c b/tests/qtest/stm32l4x5_exti-test.c new file mode 100644 index 0000000000..c390077713 --- /dev/null +++ b/tests/qtest/stm32l4x5_exti-test.c @@ -0,0 +1,524 @@ +/* + * QTest testcase for STM32L4x5_EXTI + * + * Copyright (c) 2023 Arnaud Minier <arnaud.minier@telecom-paris.fr> + * Copyright (c) 2023 Inès Varhol <ines.varhol@telecom-paris.fr> + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "libqtest-single.h" + +#define EXTI_BASE_ADDR 0x40010400 +#define EXTI_IMR1 0x00 +#define EXTI_EMR1 0x04 +#define EXTI_RTSR1 0x08 +#define EXTI_FTSR1 0x0C +#define EXTI_SWIER1 0x10 +#define EXTI_PR1 0x14 +#define EXTI_IMR2 0x20 +#define EXTI_EMR2 0x24 +#define EXTI_RTSR2 0x28 +#define EXTI_FTSR2 0x2C +#define EXTI_SWIER2 0x30 +#define EXTI_PR2 0x34 + +#define NVIC_ISER 0xE000E100 +#define NVIC_ISPR 0xE000E200 +#define NVIC_ICPR 0xE000E280 + +#define EXTI0_IRQ 6 +#define EXTI1_IRQ 7 +#define EXTI35_IRQ 1 + +static void enable_nvic_irq(unsigned int n) +{ + writel(NVIC_ISER, 1 << n); +} + +static void unpend_nvic_irq(unsigned int n) +{ + writel(NVIC_ICPR, 1 << n); +} + +static bool check_nvic_pending(unsigned int n) +{ + return readl(NVIC_ISPR) & (1 << n); +} + +static void exti_writel(unsigned int offset, uint32_t value) +{ + writel(EXTI_BASE_ADDR + offset, value); +} + +static uint32_t exti_readl(unsigned int offset) +{ + return readl(EXTI_BASE_ADDR + offset); +} + +static void exti_set_irq(int num, int level) +{ + qtest_set_irq_in(global_qtest, "/machine/soc/exti", NULL, + num, level); +} + +static void test_reg_write_read(void) +{ + /* Test that non-reserved bits in xMR and xTSR can be set and cleared */ + + exti_writel(EXTI_IMR1, 0xFFFFFFFF); + g_assert_cmpuint(exti_readl(EXTI_IMR1), ==, 0xFFFFFFFF); + exti_writel(EXTI_IMR1, 0x00000000); + g_assert_cmpuint(exti_readl(EXTI_IMR1), ==, 0x00000000); + + exti_writel(EXTI_EMR1, 0xFFFFFFFF); + g_assert_cmpuint(exti_readl(EXTI_EMR1), ==, 0xFFFFFFFF); + exti_writel(EXTI_EMR1, 0x00000000); + g_assert_cmpuint(exti_readl(EXTI_EMR1), ==, 0x00000000); + + exti_writel(EXTI_RTSR1, 0xFFFFFFFF); + g_assert_cmpuint(exti_readl(EXTI_RTSR1), ==, 0x007DFFFF); + exti_writel(EXTI_RTSR1, 0x00000000); + g_assert_cmpuint(exti_readl(EXTI_RTSR1), ==, 0x00000000); + + exti_writel(EXTI_FTSR1, 0xFFFFFFFF); + g_assert_cmpuint(exti_readl(EXTI_FTSR1), ==, 0x007DFFFF); + exti_writel(EXTI_FTSR1, 0x00000000); + g_assert_cmpuint(exti_readl(EXTI_FTSR1), ==, 0x00000000); + + exti_writel(EXTI_IMR2, 0xFFFFFFFF); + g_assert_cmpuint(exti_readl(EXTI_IMR2), ==, 0x000000FF); + exti_writel(EXTI_IMR2, 0x00000000); + g_assert_cmpuint(exti_readl(EXTI_IMR2), ==, 0x00000000); + + exti_writel(EXTI_EMR2, 0xFFFFFFFF); + g_assert_cmpuint(exti_readl(EXTI_EMR2), ==, 0x000000FF); + exti_writel(EXTI_EMR2, 0x00000000); + g_assert_cmpuint(exti_readl(EXTI_EMR2), ==, 0x00000000); + + exti_writel(EXTI_RTSR2, 0xFFFFFFFF); + g_assert_cmpuint(exti_readl(EXTI_RTSR2), ==, 0x00000078); + exti_writel(EXTI_RTSR2, 0x00000000); + g_assert_cmpuint(exti_readl(EXTI_RTSR2), ==, 0x00000000); + + exti_writel(EXTI_FTSR2, 0xFFFFFFFF); + g_assert_cmpuint(exti_readl(EXTI_FTSR2), ==, 0x00000078); + exti_writel(EXTI_FTSR2, 0x00000000); + g_assert_cmpuint(exti_readl(EXTI_FTSR2), ==, 0x00000000); +} + +static void test_direct_lines_write(void) +{ + /* Test that direct lines reserved bits are not written to */ + + exti_writel(EXTI_RTSR1, 0xFF820000); + g_assert_cmpuint(exti_readl(EXTI_RTSR1), ==, 0x00000000); + + exti_writel(EXTI_FTSR1, 0xFF820000); + g_assert_cmpuint(exti_readl(EXTI_FTSR1), ==, 0x00000000); + + exti_writel(EXTI_SWIER1, 0xFF820000); + g_assert_cmpuint(exti_readl(EXTI_SWIER1), ==, 0x00000000); + + exti_writel(EXTI_PR1, 0xFF820000); + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + + exti_writel(EXTI_RTSR2, 0x00000087); + g_assert_cmpuint(exti_readl(EXTI_RTSR2), ==, 0x00000000); + + exti_writel(EXTI_FTSR2, 0x00000087); + g_assert_cmpuint(exti_readl(EXTI_FTSR2), ==, 0x00000000); + + exti_writel(EXTI_SWIER2, 0x00000087); + g_assert_cmpuint(exti_readl(EXTI_SWIER2), ==, 0x00000000); + + exti_writel(EXTI_PR2, 0x00000087); + g_assert_cmpuint(exti_readl(EXTI_PR2), ==, 0x00000000); +} + +static void test_reserved_bits_write(void) +{ + /* Test that reserved bits stay are not written to */ + + exti_writel(EXTI_IMR2, 0xFFFFFF00); + g_assert_cmpuint(exti_readl(EXTI_IMR2), ==, 0x00000000); + + exti_writel(EXTI_EMR2, 0xFFFFFF00); + g_assert_cmpuint(exti_readl(EXTI_EMR2), ==, 0x00000000); + + exti_writel(EXTI_RTSR2, 0xFFFFFF00); + g_assert_cmpuint(exti_readl(EXTI_RTSR2), ==, 0x00000000); + + exti_writel(EXTI_FTSR2, 0xFFFFFF00); + g_assert_cmpuint(exti_readl(EXTI_FTSR2), ==, 0x00000000); + + exti_writel(EXTI_SWIER2, 0xFFFFFF00); + g_assert_cmpuint(exti_readl(EXTI_SWIER2), ==, 0x00000000); + + exti_writel(EXTI_PR2, 0xFFFFFF00); + g_assert_cmpuint(exti_readl(EXTI_PR2), ==, 0x00000000); +} + +static void test_software_interrupt(void) +{ + /* + * Test that we can launch a software irq by : + * - enabling its line in IMR + * - and then setting a bit from '0' to '1' in SWIER + * + * And that the interruption stays pending in NVIC + * even after clearing the pending bit in PR. + */ + + /* + * Testing interrupt line EXTI0 + * Bit 0 in EXTI_*1 registers (EXTI0) corresponds to GPIO Px_0 + */ + + enable_nvic_irq(EXTI0_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(EXTI0_IRQ)); + + /* Enable interrupt line EXTI0 */ + exti_writel(EXTI_IMR1, 0x00000001); + /* Set the right SWIER bit from '0' to '1' */ + exti_writel(EXTI_SWIER1, 0x00000000); + exti_writel(EXTI_SWIER1, 0x00000001); + + /* Check that the write in SWIER was effective */ + g_assert_cmpuint(exti_readl(EXTI_SWIER1), ==, 0x00000001); + /* Check that the corresponding pending bit in PR is set */ + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000001); + /* Check that the corresponding interrupt is pending in the NVIC */ + g_assert_true(check_nvic_pending(EXTI0_IRQ)); + + /* Clear the pending bit in PR */ + exti_writel(EXTI_PR1, 0x00000001); + + /* Check that the write in PR was effective */ + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + /* Check that the corresponding bit in SWIER was cleared */ + g_assert_cmpuint(exti_readl(EXTI_SWIER1), ==, 0x00000000); + /* Check that the interrupt is still pending in the NVIC */ + g_assert_true(check_nvic_pending(EXTI0_IRQ)); + + /* + * Testing interrupt line EXTI35 + * Bit 3 in EXTI_*2 registers (EXTI35) corresponds to PVM 1 Wakeup + */ + + enable_nvic_irq(EXTI35_IRQ); + /* Check that there are no interrupts already pending */ + g_assert_cmpuint(exti_readl(EXTI_PR2), ==, 0x00000000); + g_assert_false(check_nvic_pending(EXTI35_IRQ)); + + /* Enable interrupt line EXTI0 */ + exti_writel(EXTI_IMR2, 0x00000008); + /* Set the right SWIER bit from '0' to '1' */ + exti_writel(EXTI_SWIER2, 0x00000000); + exti_writel(EXTI_SWIER2, 0x00000008); + + /* Check that the write in SWIER was effective */ + g_assert_cmpuint(exti_readl(EXTI_SWIER2), ==, 0x00000008); + /* Check that the corresponding pending bit in PR is set */ + g_assert_cmpuint(exti_readl(EXTI_PR2), ==, 0x00000008); + /* Check that the corresponding interrupt is pending in the NVIC */ + g_assert_true(check_nvic_pending(EXTI35_IRQ)); + + /* Clear the pending bit in PR */ + exti_writel(EXTI_PR2, 0x00000008); + + /* Check that the write in PR was effective */ + g_assert_cmpuint(exti_readl(EXTI_PR2), ==, 0x00000000); + /* Check that the corresponding bit in SWIER was cleared */ + g_assert_cmpuint(exti_readl(EXTI_SWIER2), ==, 0x00000000); + /* Check that the interrupt is still pending in the NVIC */ + g_assert_true(check_nvic_pending(EXTI35_IRQ)); + + /* Clean NVIC */ + unpend_nvic_irq(EXTI0_IRQ); + g_assert_false(check_nvic_pending(EXTI0_IRQ)); + unpend_nvic_irq(EXTI35_IRQ); + g_assert_false(check_nvic_pending(EXTI35_IRQ)); +} + +static void test_edge_selector(void) +{ + enable_nvic_irq(EXTI0_IRQ); + + /* Configure EXTI line 0 irq on rising edge */ + exti_set_irq(0, 1); + exti_writel(EXTI_IMR1, 0x00000001); + exti_writel(EXTI_RTSR1, 0x00000001); + exti_writel(EXTI_FTSR1, 0x00000000); + + /* Test that an irq is raised on rising edge only */ + exti_set_irq(0, 0); + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + g_assert_false(check_nvic_pending(EXTI0_IRQ)); + + exti_set_irq(0, 1); + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000001); + g_assert_true(check_nvic_pending(EXTI0_IRQ)); + + /* Clean the test */ + exti_writel(EXTI_PR1, 0x00000001); + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + unpend_nvic_irq(EXTI0_IRQ); + g_assert_false(check_nvic_pending(EXTI0_IRQ)); + + /* Configure EXTI line 0 irq on falling edge */ + exti_set_irq(0, 0); + exti_writel(EXTI_IMR1, 0x00000001); + exti_writel(EXTI_RTSR1, 0x00000000); + exti_writel(EXTI_FTSR1, 0x00000001); + + /* Test that an irq is raised on falling edge only */ + exti_set_irq(0, 1); + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + g_assert_false(check_nvic_pending(EXTI0_IRQ)); + + exti_set_irq(0, 0); + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000001); + g_assert_true(check_nvic_pending(EXTI0_IRQ)); + + /* Clean the test */ + exti_writel(EXTI_PR1, 0x00000001); + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + unpend_nvic_irq(EXTI0_IRQ); + g_assert_false(check_nvic_pending(EXTI0_IRQ)); + + /* Configure EXTI line 0 irq on falling and rising edge */ + exti_writel(EXTI_IMR1, 0x00000001); + exti_writel(EXTI_RTSR1, 0x00000001); + exti_writel(EXTI_FTSR1, 0x00000001); + + /* Test that an irq is raised on rising edge */ + exti_set_irq(0, 1); + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000001); + g_assert_true(check_nvic_pending(EXTI0_IRQ)); + + /* Clean the test */ + exti_writel(EXTI_PR1, 0x00000001); + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + unpend_nvic_irq(EXTI0_IRQ); + g_assert_false(check_nvic_pending(EXTI0_IRQ)); + + /* Test that an irq is raised on falling edge */ + exti_set_irq(0, 0); + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000001); + g_assert_true(check_nvic_pending(EXTI0_IRQ)); + + /* Clean the test */ + exti_writel(EXTI_PR1, 0x00000001); + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + unpend_nvic_irq(EXTI0_IRQ); + g_assert_false(check_nvic_pending(EXTI0_IRQ)); + + /* Configure EXTI line 0 irq without selecting an edge trigger */ + exti_writel(EXTI_IMR1, 0x00000001); + exti_writel(EXTI_RTSR1, 0x00000000); + exti_writel(EXTI_FTSR1, 0x00000000); + + /* Test that no irq is raised */ + exti_set_irq(0, 1); + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + g_assert_false(check_nvic_pending(EXTI0_IRQ)); + + exti_set_irq(0, 0); + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + g_assert_false(check_nvic_pending(EXTI0_IRQ)); +} + +static void test_no_software_interrupt(void) +{ + /* + * Test that software irq doesn't happen when : + * - corresponding bit in IMR isn't set + * - SWIER is set to 1 before IMR is set to 1 + */ + + /* + * Testing interrupt line EXTI0 + * Bit 0 in EXTI_*1 registers (EXTI0) corresponds to GPIO Px_0 + */ + + enable_nvic_irq(EXTI0_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(EXTI0_IRQ)); + + /* Mask interrupt line EXTI0 */ + exti_writel(EXTI_IMR1, 0x00000000); + /* Set the corresponding SWIER bit from '0' to '1' */ + exti_writel(EXTI_SWIER1, 0x00000000); + exti_writel(EXTI_SWIER1, 0x00000001); + + /* Check that the write in SWIER was effective */ + g_assert_cmpuint(exti_readl(EXTI_SWIER1), ==, 0x00000001); + /* Check that the pending bit in PR wasn't set */ + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + /* Check that the interrupt isn't pending in NVIC */ + g_assert_false(check_nvic_pending(EXTI0_IRQ)); + + /* Enable interrupt line EXTI0 */ + exti_writel(EXTI_IMR1, 0x00000001); + + /* Check that the pending bit in PR wasn't set */ + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + /* Check that the interrupt isn't pending in NVIC */ + g_assert_false(check_nvic_pending(EXTI0_IRQ)); + + /* + * Testing interrupt line EXTI35 + * Bit 3 in EXTI_*2 registers (EXTI35) corresponds to PVM 1 Wakeup + */ + + enable_nvic_irq(EXTI35_IRQ); + /* Check that there are no interrupts already pending in PR */ + g_assert_cmpuint(exti_readl(EXTI_PR2), ==, 0x00000000); + /* Check that this specific interrupt isn't pending in NVIC */ + g_assert_false(check_nvic_pending(EXTI35_IRQ)); + + /* Mask interrupt line EXTI35 */ + exti_writel(EXTI_IMR2, 0x00000000); + /* Set the corresponding SWIER bit from '0' to '1' */ + exti_writel(EXTI_SWIER2, 0x00000000); + exti_writel(EXTI_SWIER2, 0x00000008); + + /* Check that the write in SWIER was effective */ + g_assert_cmpuint(exti_readl(EXTI_SWIER2), ==, 0x00000008); + /* Check that the pending bit in PR wasn't set */ + g_assert_cmpuint(exti_readl(EXTI_PR2), ==, 0x00000000); + /* Check that the interrupt isn't pending in NVIC */ + g_assert_false(check_nvic_pending(EXTI35_IRQ)); + + /* Enable interrupt line EXTI35 */ + exti_writel(EXTI_IMR2, 0x00000008); + + /* Check that the pending bit in PR wasn't set */ + g_assert_cmpuint(exti_readl(EXTI_PR2), ==, 0x00000000); + /* Check that the interrupt isn't pending in NVIC */ + g_assert_false(check_nvic_pending(EXTI35_IRQ)); +} + +static void test_masked_interrupt(void) +{ + /* + * Test that irq doesn't happen when : + * - corresponding bit in IMR isn't set + * - SWIER is set to 1 before IMR is set to 1 + */ + + /* + * Testing interrupt line EXTI1 + * with rising edge from GPIOx pin 1 + */ + + enable_nvic_irq(EXTI1_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(EXTI1_IRQ)); + + /* Mask interrupt line EXTI1 */ + exti_writel(EXTI_IMR1, 0x00000000); + + /* Configure interrupt on rising edge */ + exti_writel(EXTI_RTSR1, 0x00000002); + + /* Simulate rising edge from GPIO line 1 */ + exti_set_irq(1, 1); + + /* Check that the pending bit in PR wasn't set */ + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + /* Check that the interrupt isn't pending in NVIC */ + g_assert_false(check_nvic_pending(EXTI1_IRQ)); + + /* Enable interrupt line EXTI1 */ + exti_writel(EXTI_IMR1, 0x00000002); + + /* Check that the pending bit in PR wasn't set */ + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + /* Check that the interrupt isn't pending in NVIC */ + g_assert_false(check_nvic_pending(EXTI1_IRQ)); +} + +static void test_interrupt(void) +{ + /* + * Test that we can launch an irq by : + * - enabling its line in IMR + * - configuring interrupt on rising edge + * - and then setting the input line from '0' to '1' + * + * And that the interruption stays pending in NVIC + * even after clearing the pending bit in PR. + */ + + /* + * Testing interrupt line EXTI1 + * with rising edge from GPIOx pin 1 + */ + + enable_nvic_irq(EXTI1_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(EXTI1_IRQ)); + + /* Enable interrupt line EXTI1 */ + exti_writel(EXTI_IMR1, 0x00000002); + + /* Configure interrupt on rising edge */ + exti_writel(EXTI_RTSR1, 0x00000002); + + /* Simulate rising edge from GPIO line 1 */ + exti_set_irq(1, 1); + + /* Check that the pending bit in PR was set */ + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000002); + /* Check that the interrupt is pending in NVIC */ + g_assert_true(check_nvic_pending(EXTI1_IRQ)); + + /* Clear the pending bit in PR */ + exti_writel(EXTI_PR1, 0x00000002); + + /* Check that the write in PR was effective */ + g_assert_cmpuint(exti_readl(EXTI_PR1), ==, 0x00000000); + /* Check that the interrupt is still pending in the NVIC */ + g_assert_true(check_nvic_pending(EXTI1_IRQ)); + + /* Clean NVIC */ + unpend_nvic_irq(EXTI1_IRQ); + g_assert_false(check_nvic_pending(EXTI1_IRQ)); +} + +int main(int argc, char **argv) +{ + int ret; + + g_test_init(&argc, &argv, NULL); + g_test_set_nonfatal_assertions(); + qtest_add_func("stm32l4x5/exti/direct_lines", test_direct_lines_write); + qtest_add_func("stm32l4x5/exti/reserved_bits", test_reserved_bits_write); + qtest_add_func("stm32l4x5/exti/reg_write_read", test_reg_write_read); + qtest_add_func("stm32l4x5/exti/no_software_interrupt", + test_no_software_interrupt); + qtest_add_func("stm32l4x5/exti/software_interrupt", + test_software_interrupt); + 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_start("-machine b-l475e-iot01a"); + ret = g_test_run(); + qtest_end(); + + return ret; +} diff --git a/tests/qtest/stm32l4x5_syscfg-test.c b/tests/qtest/stm32l4x5_syscfg-test.c new file mode 100644 index 0000000000..ed4801798d --- /dev/null +++ b/tests/qtest/stm32l4x5_syscfg-test.c @@ -0,0 +1,331 @@ +/* + * QTest testcase for STM32L4x5_SYSCFG + * + * Copyright (c) 2023 Arnaud Minier <arnaud.minier@telecom-paris.fr> + * Copyright (c) 2023 Inès Varhol <ines.varhol@telecom-paris.fr> + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "libqtest-single.h" + +#define SYSCFG_BASE_ADDR 0x40010000 +#define SYSCFG_MEMRMP 0x00 +#define SYSCFG_CFGR1 0x04 +#define SYSCFG_EXTICR1 0x08 +#define SYSCFG_EXTICR2 0x0C +#define SYSCFG_EXTICR3 0x10 +#define SYSCFG_EXTICR4 0x14 +#define SYSCFG_SCSR 0x18 +#define SYSCFG_CFGR2 0x1C +#define SYSCFG_SWPR 0x20 +#define SYSCFG_SKR 0x24 +#define SYSCFG_SWPR2 0x28 +#define INVALID_ADDR 0x2C + +static void syscfg_writel(unsigned int offset, uint32_t value) +{ + writel(SYSCFG_BASE_ADDR + offset, value); +} + +static uint32_t syscfg_readl(unsigned int offset) +{ + return readl(SYSCFG_BASE_ADDR + offset); +} + +static void syscfg_set_irq(int num, int level) +{ + qtest_set_irq_in(global_qtest, "/machine/soc/syscfg", + NULL, num, level); +} + +static void system_reset(void) +{ + QDict *response; + response = qtest_qmp(global_qtest, "{'execute': 'system_reset'}"); + g_assert(qdict_haskey(response, "return")); + qobject_unref(response); +} + +static void test_reset(void) +{ + /* + * Test that registers are initialized at the correct values + */ + g_assert_cmpuint(syscfg_readl(SYSCFG_MEMRMP), ==, 0x00000000); + + g_assert_cmpuint(syscfg_readl(SYSCFG_CFGR1), ==, 0x7C000001); + + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR1), ==, 0x00000000); + + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR2), ==, 0x00000000); + + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR3), ==, 0x00000000); + + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR4), ==, 0x00000000); + + g_assert_cmpuint(syscfg_readl(SYSCFG_SCSR), ==, 0x00000000); + + g_assert_cmpuint(syscfg_readl(SYSCFG_CFGR2), ==, 0x00000000); + + g_assert_cmpuint(syscfg_readl(SYSCFG_SWPR), ==, 0x00000000); + + g_assert_cmpuint(syscfg_readl(SYSCFG_SKR), ==, 0x00000000); + + g_assert_cmpuint(syscfg_readl(SYSCFG_SWPR2), ==, 0x00000000); +} + +static void test_reserved_bits(void) +{ + /* + * Test that reserved bits stay at reset value + * (which is 0 for all of them) by writing '1' + * in all reserved bits (keeping reset value for + * other bits) and checking that the + * register is still at reset value + */ + syscfg_writel(SYSCFG_MEMRMP, 0xFFFFFEF8); + g_assert_cmpuint(syscfg_readl(SYSCFG_MEMRMP), ==, 0x00000000); + + syscfg_writel(SYSCFG_CFGR1, 0x7F00FEFF); + g_assert_cmpuint(syscfg_readl(SYSCFG_CFGR1), ==, 0x7C000001); + + syscfg_writel(SYSCFG_EXTICR1, 0xFFFF0000); + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR1), ==, 0x00000000); + + syscfg_writel(SYSCFG_EXTICR2, 0xFFFF0000); + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR2), ==, 0x00000000); + + syscfg_writel(SYSCFG_EXTICR3, 0xFFFF0000); + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR3), ==, 0x00000000); + + syscfg_writel(SYSCFG_EXTICR4, 0xFFFF0000); + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR4), ==, 0x00000000); + + syscfg_writel(SYSCFG_SKR, 0xFFFFFF00); + g_assert_cmpuint(syscfg_readl(SYSCFG_SKR), ==, 0x00000000); +} + +static void test_set_and_clear(void) +{ + /* + * Test that regular bits can be set and cleared + */ + syscfg_writel(SYSCFG_MEMRMP, 0x00000107); + g_assert_cmpuint(syscfg_readl(SYSCFG_MEMRMP), ==, 0x00000107); + syscfg_writel(SYSCFG_MEMRMP, 0x00000000); + g_assert_cmpuint(syscfg_readl(SYSCFG_MEMRMP), ==, 0x00000000); + + /* cfgr1 bit 0 is clear only so we keep it set */ + syscfg_writel(SYSCFG_CFGR1, 0xFCFF0101); + g_assert_cmpuint(syscfg_readl(SYSCFG_CFGR1), ==, 0xFCFF0101); + syscfg_writel(SYSCFG_CFGR1, 0x00000001); + g_assert_cmpuint(syscfg_readl(SYSCFG_CFGR1), ==, 0x00000001); + + syscfg_writel(SYSCFG_EXTICR1, 0x0000FFFF); + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR1), ==, 0x0000FFFF); + syscfg_writel(SYSCFG_EXTICR1, 0x00000000); + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR1), ==, 0x00000000); + + syscfg_writel(SYSCFG_EXTICR2, 0x0000FFFF); + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR2), ==, 0x0000FFFF); + syscfg_writel(SYSCFG_EXTICR2, 0x00000000); + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR2), ==, 0x00000000); + + syscfg_writel(SYSCFG_EXTICR3, 0x0000FFFF); + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR3), ==, 0x0000FFFF); + syscfg_writel(SYSCFG_EXTICR3, 0x00000000); + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR3), ==, 0x00000000); + + syscfg_writel(SYSCFG_EXTICR4, 0x0000FFFF); + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR4), ==, 0x0000FFFF); + syscfg_writel(SYSCFG_EXTICR4, 0x00000000); + g_assert_cmpuint(syscfg_readl(SYSCFG_EXTICR4), ==, 0x00000000); + + syscfg_writel(SYSCFG_SKR, 0x000000FF); + g_assert_cmpuint(syscfg_readl(SYSCFG_SKR), ==, 0x000000FF); + syscfg_writel(SYSCFG_SKR, 0x00000000); + g_assert_cmpuint(syscfg_readl(SYSCFG_SKR), ==, 0x00000000); +} + +static void test_clear_by_writing_1(void) +{ + /* + * Test that writing '1' doesn't set the bit + */ + syscfg_writel(SYSCFG_CFGR2, 0x00000100); + g_assert_cmpuint(syscfg_readl(SYSCFG_CFGR2), ==, 0x00000000); +} + +static void test_set_only_bits(void) +{ + /* + * Test that set only bits stay can't be cleared + */ + syscfg_writel(SYSCFG_CFGR2, 0x0000000F); + syscfg_writel(SYSCFG_CFGR2, 0x00000000); + g_assert_cmpuint(syscfg_readl(SYSCFG_CFGR2), ==, 0x0000000F); + + syscfg_writel(SYSCFG_SWPR, 0xFFFFFFFF); + syscfg_writel(SYSCFG_SWPR, 0x00000000); + g_assert_cmpuint(syscfg_readl(SYSCFG_SWPR), ==, 0xFFFFFFFF); + + syscfg_writel(SYSCFG_SWPR2, 0xFFFFFFFF); + syscfg_writel(SYSCFG_SWPR2, 0x00000000); + g_assert_cmpuint(syscfg_readl(SYSCFG_SWPR2), ==, 0xFFFFFFFF); + + system_reset(); +} + +static void test_clear_only_bits(void) +{ + /* + * Test that clear only bits stay can't be set + */ + syscfg_writel(SYSCFG_CFGR1, 0x00000000); + syscfg_writel(SYSCFG_CFGR1, 0x00000001); + g_assert_cmpuint(syscfg_readl(SYSCFG_CFGR1), ==, 0x00000000); + + system_reset(); +} + +static void test_interrupt(void) +{ + /* + * Test that GPIO rising lines result in an irq + * with the right configuration + */ + qtest_irq_intercept_in(global_qtest, "/machine/soc/exti"); + + /* GPIOA is the default source for EXTI lines 0 to 15 */ + + syscfg_set_irq(0, 1); + + g_assert_true(get_irq(0)); + + + syscfg_set_irq(15, 1); + + g_assert_true(get_irq(15)); + + /* Configure GPIOB[1] as the source input for EXTI1 */ + syscfg_writel(SYSCFG_EXTICR1, 0x00000010); + + syscfg_set_irq(17, 1); + + g_assert_true(get_irq(1)); + + /* Clean the test */ + syscfg_writel(SYSCFG_EXTICR1, 0x00000000); + syscfg_set_irq(0, 0); + syscfg_set_irq(15, 0); + syscfg_set_irq(17, 0); +} + +static void test_irq_pin_multiplexer(void) +{ + /* + * Test that syscfg irq sets the right exti irq + */ + + qtest_irq_intercept_in(global_qtest, "/machine/soc/exti"); + + syscfg_set_irq(0, 1); + + /* Check that irq 0 was set and irq 15 wasn't */ + g_assert_true(get_irq(0)); + g_assert_false(get_irq(15)); + + /* Clean the test */ + syscfg_set_irq(0, 0); + + syscfg_set_irq(15, 1); + + /* Check that irq 15 was set and irq 0 wasn't */ + g_assert_true(get_irq(15)); + g_assert_false(get_irq(0)); + + /* Clean the test */ + syscfg_set_irq(15, 0); +} + +static void test_irq_gpio_multiplexer(void) +{ + /* + * Test that an irq is generated only by the right GPIO + */ + + qtest_irq_intercept_in(global_qtest, "/machine/soc/exti"); + + /* GPIOA is the default source for EXTI lines 0 to 15 */ + + /* Check that setting rising pin GPIOA[0] generates an irq */ + syscfg_set_irq(0, 1); + + g_assert_true(get_irq(0)); + + /* Clean the test */ + syscfg_set_irq(0, 0); + + /* Check that setting rising pin GPIOB[0] doesn't generate an irq */ + syscfg_set_irq(16, 1); + + g_assert_false(get_irq(0)); + + /* Clean the test */ + syscfg_set_irq(16, 0); + + /* Configure GPIOB[0] as the source input for EXTI0 */ + syscfg_writel(SYSCFG_EXTICR1, 0x00000001); + + /* Check that setting rising pin GPIOA[0] doesn't generate an irq */ + syscfg_set_irq(0, 1); + + g_assert_false(get_irq(0)); + + /* Clean the test */ + syscfg_set_irq(0, 0); + + /* Check that setting rising pin GPIOB[0] generates an irq */ + syscfg_set_irq(16, 1); + + g_assert_true(get_irq(0)); + + /* Clean the test */ + syscfg_set_irq(16, 0); + syscfg_writel(SYSCFG_EXTICR1, 0x00000000); +} + +int main(int argc, char **argv) +{ + int ret; + + g_test_init(&argc, &argv, NULL); + g_test_set_nonfatal_assertions(); + + qtest_add_func("stm32l4x5/syscfg/test_reset", test_reset); + qtest_add_func("stm32l4x5/syscfg/test_reserved_bits", + test_reserved_bits); + qtest_add_func("stm32l4x5/syscfg/test_set_and_clear", + test_set_and_clear); + qtest_add_func("stm32l4x5/syscfg/test_clear_by_writing_1", + test_clear_by_writing_1); + qtest_add_func("stm32l4x5/syscfg/test_set_only_bits", + test_set_only_bits); + qtest_add_func("stm32l4x5/syscfg/test_clear_only_bits", + test_clear_only_bits); + qtest_add_func("stm32l4x5/syscfg/test_interrupt", + test_interrupt); + qtest_add_func("stm32l4x5/syscfg/test_irq_pin_multiplexer", + test_irq_pin_multiplexer); + qtest_add_func("stm32l4x5/syscfg/test_irq_gpio_multiplexer", + test_irq_gpio_multiplexer); + + qtest_start("-machine b-l475e-iot01a"); + ret = g_test_run(); + qtest_end(); + + return ret; +} |