Acked-by: Alistair Francis <alistair.fran...@wdc.com> Signed-off-by: Arnaud Minier <arnaud.min...@telecom-paris.fr> Signed-off-by: Inès Varhol <ines.var...@telecom-paris.fr> --- tests/qtest/meson.build | 3 +- tests/qtest/stm32l4x5_syscfg-test.c | 408 ++++++++++++++++++++++++++++ 2 files changed, 410 insertions(+), 1 deletion(-) create mode 100644 tests/qtest/stm32l4x5_syscfg-test.c
diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index d5126f4d86..a2213d60b3 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -196,7 +196,8 @@ qtests_aspeed = \ 'aspeed_gpio-test'] qtests_stm32l4x5 = \ - ['stm32l4x5_exti-test'] + ['stm32l4x5_exti-test', + 'stm32l4x5_syscfg-test'] qtests_arm = \ (config_all_devices.has_key('CONFIG_MPS2') ? ['sse-timer-test'] : []) + \ diff --git a/tests/qtest/stm32l4x5_syscfg-test.c b/tests/qtest/stm32l4x5_syscfg-test.c new file mode 100644 index 0000000000..3edd13b222 --- /dev/null +++ b/tests/qtest/stm32l4x5_syscfg-test.c @@ -0,0 +1,408 @@ +/* + * QTest testcase for STM32L4x5_SYSCFG + * + * Copyright (c) 2023 Arnaud Minier <arnaud.min...@telecom-paris.fr> + * Copyright (c) 2023 Inès Varhol <ines.var...@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 + +#define EXTI_BASE_ADDR 0x40010400 +#define EXTI_IMR1 0x00 +#define EXTI_RTSR1 0x08 +#define EXTI_FTSR1 0x0C + +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 exti_writel(unsigned int offset, uint32_t value) +{ + writel(EXTI_BASE_ADDR + offset, value); +} + +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 + */ + const uint32_t memrmp = syscfg_readl(SYSCFG_MEMRMP); + g_assert_cmpuint(memrmp, ==, 0x00000000); + + const uint32_t cfgr1 = syscfg_readl(SYSCFG_CFGR1); + g_assert_cmpuint(cfgr1, ==, 0x7C000001); + + const uint32_t exticr1 = syscfg_readl(SYSCFG_EXTICR1); + g_assert_cmpuint(exticr1, ==, 0x00000000); + + const uint32_t exticr2 = syscfg_readl(SYSCFG_EXTICR2); + g_assert_cmpuint(exticr2, ==, 0x00000000); + + const uint32_t exticr3 = syscfg_readl(SYSCFG_EXTICR3); + g_assert_cmpuint(exticr3, ==, 0x00000000); + + const uint32_t exticr4 = syscfg_readl(SYSCFG_EXTICR4); + g_assert_cmpuint(exticr4, ==, 0x00000000); + + const uint32_t scsr = syscfg_readl(SYSCFG_SCSR); + g_assert_cmpuint(scsr, ==, 0x00000000); + + const uint32_t cfgr2 = syscfg_readl(SYSCFG_CFGR2); + g_assert_cmpuint(cfgr2, ==, 0x00000000); + + const uint32_t swpr = syscfg_readl(SYSCFG_SWPR); + g_assert_cmpuint(swpr, ==, 0x00000000); + + const uint32_t skr = syscfg_readl(SYSCFG_SKR); + g_assert_cmpuint(skr, ==, 0x00000000); + + const uint32_t swpr2 = syscfg_readl(SYSCFG_SWPR2); + g_assert_cmpuint(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); + const uint32_t memrmp = syscfg_readl(SYSCFG_MEMRMP); + g_assert_cmpuint(memrmp, ==, 0x00000000); + + syscfg_writel(SYSCFG_CFGR1, 0x7F00FEFF); + const uint32_t cfgr1 = syscfg_readl(SYSCFG_CFGR1); + g_assert_cmpuint(cfgr1, ==, 0x7C000001); + + syscfg_writel(SYSCFG_EXTICR1, 0xFFFF0000); + const uint32_t exticr1 = syscfg_readl(SYSCFG_EXTICR1); + g_assert_cmpuint(exticr1, ==, 0x00000000); + + syscfg_writel(SYSCFG_EXTICR2, 0xFFFF0000); + const uint32_t exticr2 = syscfg_readl(SYSCFG_EXTICR2); + g_assert_cmpuint(exticr2, ==, 0x00000000); + + syscfg_writel(SYSCFG_EXTICR3, 0xFFFF0000); + const uint32_t exticr3 = syscfg_readl(SYSCFG_EXTICR3); + g_assert_cmpuint(exticr3, ==, 0x00000000); + + syscfg_writel(SYSCFG_EXTICR4, 0xFFFF0000); + const uint32_t exticr4 = syscfg_readl(SYSCFG_EXTICR4); + g_assert_cmpuint(exticr4, ==, 0x00000000); + + syscfg_writel(SYSCFG_SKR, 0xFFFFFF00); + const uint32_t skr = syscfg_readl(SYSCFG_SKR); + g_assert_cmpuint(skr, ==, 0x00000000); +} + +static void test_set_and_clear(void) +{ + /* + * Test that regular bits can be set and cleared + */ + syscfg_writel(SYSCFG_MEMRMP, 0x00000107); + uint32_t memrmp = syscfg_readl(SYSCFG_MEMRMP); + g_assert_cmpuint(memrmp, ==, 0x00000107); + syscfg_writel(SYSCFG_MEMRMP, 0x00000000); + memrmp = syscfg_readl(SYSCFG_MEMRMP); + g_assert_cmpuint(memrmp, ==, 0x00000000); + + /* cfgr1 bit 0 is clear only so we keep it set */ + syscfg_writel(SYSCFG_CFGR1, 0xFCFF0101); + uint32_t cfgr1 = syscfg_readl(SYSCFG_CFGR1); + g_assert_cmpuint(cfgr1, ==, 0xFCFF0101); + syscfg_writel(SYSCFG_CFGR1, 0x00000001); + cfgr1 = syscfg_readl(SYSCFG_CFGR1); + g_assert_cmpuint(cfgr1, ==, 0x00000001); + + syscfg_writel(SYSCFG_EXTICR1, 0x0000FFFF); + uint32_t exticr1 = syscfg_readl(SYSCFG_EXTICR1); + g_assert_cmpuint(exticr1, ==, 0x0000FFFF); + syscfg_writel(SYSCFG_EXTICR1, 0x00000000); + exticr1 = syscfg_readl(SYSCFG_EXTICR1); + g_assert_cmpuint(exticr1, ==, 0x00000000); + + syscfg_writel(SYSCFG_EXTICR2, 0x0000FFFF); + uint32_t exticr2 = syscfg_readl(SYSCFG_EXTICR2); + g_assert_cmpuint(exticr2, ==, 0x0000FFFF); + syscfg_writel(SYSCFG_EXTICR2, 0x00000000); + exticr2 = syscfg_readl(SYSCFG_EXTICR2); + g_assert_cmpuint(exticr2, ==, 0x00000000); + + syscfg_writel(SYSCFG_EXTICR3, 0x0000FFFF); + uint32_t exticr3 = syscfg_readl(SYSCFG_EXTICR3); + g_assert_cmpuint(exticr3, ==, 0x0000FFFF); + syscfg_writel(SYSCFG_EXTICR3, 0x00000000); + exticr3 = syscfg_readl(SYSCFG_EXTICR3); + g_assert_cmpuint(exticr3, ==, 0x00000000); + + syscfg_writel(SYSCFG_EXTICR4, 0x0000FFFF); + uint32_t exticr4 = syscfg_readl(SYSCFG_EXTICR4); + g_assert_cmpuint(exticr4, ==, 0x0000FFFF); + syscfg_writel(SYSCFG_EXTICR4, 0x00000000); + exticr4 = syscfg_readl(SYSCFG_EXTICR4); + g_assert_cmpuint(exticr4, ==, 0x00000000); + + syscfg_writel(SYSCFG_SKR, 0x000000FF); + uint32_t skr = syscfg_readl(SYSCFG_SKR); + g_assert_cmpuint(skr, ==, 0x000000FF); + syscfg_writel(SYSCFG_SKR, 0x00000000); + skr = syscfg_readl(SYSCFG_SKR); + g_assert_cmpuint(skr, ==, 0x00000000); +} + +static void test_clear_by_writing_1(void) +{ + /* + * Test that writing '1' doesn't set the bit + */ + syscfg_writel(SYSCFG_CFGR2, 0x00000100); + const uint32_t cfgr2 = syscfg_readl(SYSCFG_CFGR2); + g_assert_cmpuint(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); + const uint32_t exticr3 = syscfg_readl(SYSCFG_CFGR2); + g_assert_cmpuint(exticr3, ==, 0x0000000F); + + syscfg_writel(SYSCFG_SWPR, 0xFFFFFFFF); + syscfg_writel(SYSCFG_SWPR, 0x00000000); + const uint32_t swpr = syscfg_readl(SYSCFG_SWPR); + g_assert_cmpuint(swpr, ==, 0xFFFFFFFF); + + syscfg_writel(SYSCFG_SWPR2, 0xFFFFFFFF); + syscfg_writel(SYSCFG_SWPR2, 0x00000000); + const uint32_t swpr2 = syscfg_readl(SYSCFG_SWPR2); + g_assert_cmpuint(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); + const uint32_t cfgr1 = syscfg_readl(SYSCFG_CFGR1); + g_assert_cmpuint(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/unattached/device[0]/exti"); + /* Enable interrupt on rising edge of GPIO PA[0] */ + exti_writel(EXTI_IMR1, 0x00000001); + exti_writel(EXTI_RTSR1, 0x00000001); + + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 0, 1); + + g_assert_true(get_irq(0)); + + /* Enable interrupt on rising edge of GPIO PA[15] */ + exti_writel(EXTI_IMR1, 0x00008000); + exti_writel(EXTI_RTSR1, 0x00008000); + + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 15, 1); + + g_assert_true(get_irq(15)); + + /* Enable interrupt on rising edge of GPIO PB[1] */ + syscfg_writel(SYSCFG_EXTICR1, 0x00000010); + exti_writel(EXTI_IMR1, 0x00000002); + exti_writel(EXTI_RTSR1, 0x00000002); + + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 17, 1); + + g_assert_true(get_irq(1)); + + /* Clean the test */ + syscfg_writel(SYSCFG_EXTICR1, 0x00000000); + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 0, 0); + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 15, 0); + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 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/unattached/device[0]/exti"); + + /* Enable interrupt on rising edge of GPIO PA[0] */ + exti_writel(EXTI_IMR1, 0x00000001); + exti_writel(EXTI_RTSR1, 0x00000001); + + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 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 */ + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 0, 0); + + /* Enable interrupt on rising edge of GPIO PA[15] */ + exti_writel(EXTI_IMR1, 0x00008000); + exti_writel(EXTI_RTSR1, 0x00008000); + + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 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 */ + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 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/unattached/device[0]/exti"); + + /* Enable interrupt on rising edge of GPIO PA[0] */ + exti_writel(EXTI_IMR1, 0x00000001); + exti_writel(EXTI_RTSR1, 0x00000001); + + /* Check that setting rising pin GPIOA[0] generates an irq */ + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 0, 1); + + g_assert_true(get_irq(0)); + + /* Clean the test */ + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 0, 0); + + /* Check that setting rising pin GPIOB[0] doesn't generate an irq */ + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 16, 1); + + g_assert_false(get_irq(0)); + + /* Clean the test */ + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 16, 0); + + /* Enable interrupt on rising edge of GPIO PB[0] */ + exti_writel(EXTI_IMR1, 0x00000001); + exti_writel(EXTI_RTSR1, 0x00000001); + syscfg_writel(SYSCFG_EXTICR1, 0x00000001); + + /* Check that setting rising pin GPIOA[0] doesn't generate an irq */ + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 0, 1); + + g_assert_false(get_irq(0)); + + /* Clean the test */ + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 0, 0); + + /* Check that setting rising pin GPIOB[0] generates an irq */ + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 16, 1); + + g_assert_true(get_irq(0)); + + /* Clean the test */ + qtest_set_irq_in(global_qtest, "/machine/unattached/device[0]/syscfg", + NULL, 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; +} -- 2.43.0