tests/microbit-test: Add Tests for nRF51 GPIO
The test suite for the nRF51 GPIO peripheral for now only tests initial state. Additionally a set of tests testing an implementation detail of the model are included. Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20190103091119.9367-8-stefanha@redhat.com [PMM: fixed stray space at start of file] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Steffen Görtz
Peter Maydell
parent
bb42c4cb2a
commit
17ff8e18cc
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@ -277,6 +277,7 @@ check-qtest-sparc64-y += tests/boot-serial-test$(EXESUF)
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check-qtest-arm-y += tests/tmp105-test$(EXESUF)
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check-qtest-arm-y += tests/pca9552-test$(EXESUF)
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check-qtest-arm-y += tests/ds1338-test$(EXESUF)
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check-qtest-arm-y += tests/microbit-test$(EXESUF)
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check-qtest-arm-y += tests/m25p80-test$(EXESUF)
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check-qtest-arm-y += tests/virtio-blk-test$(EXESUF)
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check-qtest-arm-y += tests/test-arm-mptimer$(EXESUF)
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@ -708,6 +709,7 @@ tests/pxe-test$(EXESUF): tests/pxe-test.o tests/boot-sector.o $(libqos-obj-y)
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tests/tmp105-test$(EXESUF): tests/tmp105-test.o $(libqos-omap-obj-y)
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tests/pca9552-test$(EXESUF): tests/pca9552-test.o $(libqos-omap-obj-y)
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tests/ds1338-test$(EXESUF): tests/ds1338-test.o $(libqos-imx-obj-y)
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tests/microbit-test$(EXESUF): tests/microbit-test.o
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tests/m25p80-test$(EXESUF): tests/m25p80-test.o
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tests/i440fx-test$(EXESUF): tests/i440fx-test.o $(libqos-pc-obj-y)
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tests/q35-test$(EXESUF): tests/q35-test.o $(libqos-pc-obj-y)
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@ -0,0 +1,160 @@
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/*
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* QTest testcase for Microbit board using the Nordic Semiconductor nRF51 SoC.
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*
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* nRF51:
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* Reference Manual: http://infocenter.nordicsemi.com/pdf/nRF51_RM_v3.0.pdf
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* Product Spec: http://infocenter.nordicsemi.com/pdf/nRF51822_PS_v3.1.pdf
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*
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* Microbit Board: http://microbit.org/
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*
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* Copyright 2018 Steffen Görtz <contrib@steffen-goertz.de>
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*
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* This code is licensed under the GPL version 2 or later. See
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* the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "exec/hwaddr.h"
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#include "libqtest.h"
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#include "hw/arm/nrf51.h"
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#include "hw/gpio/nrf51_gpio.h"
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static void test_nrf51_gpio(void)
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{
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size_t i;
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uint32_t actual, expected;
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struct {
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hwaddr addr;
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uint32_t expected;
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} const reset_state[] = {
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{NRF51_GPIO_REG_OUT, 0x00000000}, {NRF51_GPIO_REG_OUTSET, 0x00000000},
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{NRF51_GPIO_REG_OUTCLR, 0x00000000}, {NRF51_GPIO_REG_IN, 0x00000000},
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{NRF51_GPIO_REG_DIR, 0x00000000}, {NRF51_GPIO_REG_DIRSET, 0x00000000},
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{NRF51_GPIO_REG_DIRCLR, 0x00000000}
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};
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/* Check reset state */
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for (i = 0; i < ARRAY_SIZE(reset_state); i++) {
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expected = reset_state[i].expected;
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actual = readl(NRF51_GPIO_BASE + reset_state[i].addr);
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g_assert_cmpuint(actual, ==, expected);
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}
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for (i = 0; i < NRF51_GPIO_PINS; i++) {
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expected = 0x00000002;
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START + i * 4);
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g_assert_cmpuint(actual, ==, expected);
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}
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/* Check dir bit consistency between dir and cnf */
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/* Check set via DIRSET */
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expected = 0x80000001;
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_DIRSET, expected);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_DIR);
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g_assert_cmpuint(actual, ==, expected);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START) & 0x01;
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g_assert_cmpuint(actual, ==, 0x01);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_END) & 0x01;
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g_assert_cmpuint(actual, ==, 0x01);
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/* Check clear via DIRCLR */
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_DIRCLR, 0x80000001);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_DIR);
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g_assert_cmpuint(actual, ==, 0x00000000);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START) & 0x01;
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g_assert_cmpuint(actual, ==, 0x00);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_END) & 0x01;
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g_assert_cmpuint(actual, ==, 0x00);
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/* Check set via DIR */
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expected = 0x80000001;
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_DIR, expected);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_DIR);
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g_assert_cmpuint(actual, ==, expected);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START) & 0x01;
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g_assert_cmpuint(actual, ==, 0x01);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_END) & 0x01;
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g_assert_cmpuint(actual, ==, 0x01);
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/* Reset DIR */
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_DIR, 0x00000000);
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/* Check Input propagates */
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0x00);
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qtest_set_irq_in(global_qtest, "/machine/nrf51", "unnamed-gpio-in", 0, 0);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
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g_assert_cmpuint(actual, ==, 0x00);
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qtest_set_irq_in(global_qtest, "/machine/nrf51", "unnamed-gpio-in", 0, 1);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
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g_assert_cmpuint(actual, ==, 0x01);
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qtest_set_irq_in(global_qtest, "/machine/nrf51", "unnamed-gpio-in", 0, -1);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
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g_assert_cmpuint(actual, ==, 0x01);
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0x02);
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/* Check pull-up working */
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qtest_set_irq_in(global_qtest, "/machine/nrf51", "unnamed-gpio-in", 0, 0);
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b0000);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
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g_assert_cmpuint(actual, ==, 0x00);
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b1110);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
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g_assert_cmpuint(actual, ==, 0x01);
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0x02);
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/* Check pull-down working */
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qtest_set_irq_in(global_qtest, "/machine/nrf51", "unnamed-gpio-in", 0, 1);
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b0000);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
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g_assert_cmpuint(actual, ==, 0x01);
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b0110);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
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g_assert_cmpuint(actual, ==, 0x00);
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0x02);
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qtest_set_irq_in(global_qtest, "/machine/nrf51", "unnamed-gpio-in", 0, -1);
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/* Check Output propagates */
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irq_intercept_out("/machine/nrf51");
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b0011);
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_OUTSET, 0x01);
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g_assert_true(get_irq(0));
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_OUTCLR, 0x01);
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g_assert_false(get_irq(0));
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/* Check self-stimulation */
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b01);
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_OUTSET, 0x01);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
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g_assert_cmpuint(actual, ==, 0x01);
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_OUTCLR, 0x01);
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actual = readl(NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
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g_assert_cmpuint(actual, ==, 0x00);
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/*
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* Check short-circuit - generates an guest_error which must be checked
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* manually as long as qtest can not scan qemu_log messages
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*/
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b01);
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writel(NRF51_GPIO_BASE + NRF51_GPIO_REG_OUTSET, 0x01);
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qtest_set_irq_in(global_qtest, "/machine/nrf51", "unnamed-gpio-in", 0, 0);
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}
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int main(int argc, char **argv)
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{
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int ret;
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g_test_init(&argc, &argv, NULL);
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global_qtest = qtest_initf("-machine microbit");
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qtest_add_func("/microbit/nrf51/gpio", test_nrf51_gpio);
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ret = g_test_run();
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qtest_quit(global_qtest);
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return ret;
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}
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