From 2ec063788efd3a545c5aa2999159c9303bb476f3 Mon Sep 17 00:00:00 2001 From: Peter Delevoryas Date: Mon, 2 May 2022 17:03:04 +0200 Subject: hw/gpio/aspeed_gpio: Fix QOM pin property I was setting gpioV4-7 to "1110" using the QOM pin property handler and noticed that lowering gpioV7 was inadvertently lowering gpioV4-6 too. (qemu) qom-set /machine/soc/gpio gpioV4 true (qemu) qom-set /machine/soc/gpio gpioV5 true (qemu) qom-set /machine/soc/gpio gpioV6 true (qemu) qom-get /machine/soc/gpio gpioV4 true (qemu) qom-set /machine/soc/gpio gpioV7 false (qemu) qom-get /machine/soc/gpio gpioV4 false An expression in aspeed_gpio_set_pin_level was using a logical NOT operator instead of a bitwise NOT operator: value &= !pin_mask; The original author probably intended to make a bitwise NOT expression "~", but mistakenly used a logical NOT operator "!" instead. Some programming languages like Rust use "!" for both purposes. Fixes: 4b7f956862dc ("hw/gpio: Add basic Aspeed GPIO model for AST2400 and AST2500") Signed-off-by: Peter Delevoryas Message-Id: <20220502080827.244815-1-pdel@fb.com> Signed-off-by: Cédric Le Goater --- tests/qtest/aspeed_gpio-test.c | 87 ++++++++++++++++++++++++++++++++++++++++++ tests/qtest/meson.build | 3 +- 2 files changed, 89 insertions(+), 1 deletion(-) create mode 100644 tests/qtest/aspeed_gpio-test.c (limited to 'tests') diff --git a/tests/qtest/aspeed_gpio-test.c b/tests/qtest/aspeed_gpio-test.c new file mode 100644 index 0000000000..c1003f2d1b --- /dev/null +++ b/tests/qtest/aspeed_gpio-test.c @@ -0,0 +1,87 @@ +/* + * QTest testcase for the Aspeed GPIO Controller. + * + * Copyright (c) Meta Platforms, Inc. and affiliates. (http://www.meta.com) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "qemu/osdep.h" +#include "qemu/bitops.h" +#include "qemu/timer.h" +#include "qapi/qmp/qdict.h" +#include "libqtest-single.h" + +static bool qom_get_bool(QTestState *s, const char *path, const char *property) +{ + QDict *r; + bool b; + + r = qtest_qmp(s, "{ 'execute': 'qom-get', 'arguments': " + "{ 'path': %s, 'property': %s } }", path, property); + b = qdict_get_bool(r, "return"); + qobject_unref(r); + + return b; +} + +static void qom_set_bool(QTestState *s, const char *path, const char *property, + bool value) +{ + QDict *r; + + r = qtest_qmp(s, "{ 'execute': 'qom-set', 'arguments': " + "{ 'path': %s, 'property': %s, 'value': %i } }", + path, property, value); + qobject_unref(r); +} + +static void test_set_colocated_pins(const void *data) +{ + QTestState *s = (QTestState *)data; + + /* + * gpioV4-7 occupy bits within a single 32-bit value, so we want to make + * sure that modifying one doesn't affect the other. + */ + qom_set_bool(s, "/machine/soc/gpio", "gpioV4", true); + qom_set_bool(s, "/machine/soc/gpio", "gpioV5", false); + qom_set_bool(s, "/machine/soc/gpio", "gpioV6", true); + qom_set_bool(s, "/machine/soc/gpio", "gpioV7", false); + g_assert(qom_get_bool(s, "/machine/soc/gpio", "gpioV4")); + g_assert(!qom_get_bool(s, "/machine/soc/gpio", "gpioV5")); + g_assert(qom_get_bool(s, "/machine/soc/gpio", "gpioV6")); + g_assert(!qom_get_bool(s, "/machine/soc/gpio", "gpioV7")); +} + +int main(int argc, char **argv) +{ + QTestState *s; + int r; + + g_test_init(&argc, &argv, NULL); + + s = qtest_init("-machine ast2600-evb"); + qtest_add_data_func("/ast2600/gpio/set_colocated_pins", s, + test_set_colocated_pins); + r = g_test_run(); + qtest_quit(s); + + return r; +} diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index 6b9807c183..32fb8cf755 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -189,7 +189,8 @@ qtests_npcm7xx = \ (slirp.found() ? ['npcm7xx_emc-test'] : []) qtests_aspeed = \ ['aspeed_hace-test', - 'aspeed_smc-test'] + 'aspeed_smc-test', + 'aspeed_gpio-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'] : []) + \ -- cgit v1.2.3-55-g7522