2ec063788e
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: 4b7f956862 ("hw/gpio: Add basic Aspeed GPIO model for AST2400 and
AST2500")
Signed-off-by: Peter Delevoryas <pdel@fb.com>
Message-Id: <20220502080827.244815-1-pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
88 lines
3.0 KiB
C
88 lines
3.0 KiB
C
/*
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* QTest testcase for the Aspeed GPIO Controller.
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*
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* Copyright (c) Meta Platforms, Inc. and affiliates. (http://www.meta.com)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qemu/bitops.h"
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#include "qemu/timer.h"
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#include "qapi/qmp/qdict.h"
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#include "libqtest-single.h"
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static bool qom_get_bool(QTestState *s, const char *path, const char *property)
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{
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QDict *r;
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bool b;
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r = qtest_qmp(s, "{ 'execute': 'qom-get', 'arguments': "
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"{ 'path': %s, 'property': %s } }", path, property);
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b = qdict_get_bool(r, "return");
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qobject_unref(r);
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return b;
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}
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static void qom_set_bool(QTestState *s, const char *path, const char *property,
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bool value)
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{
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QDict *r;
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r = qtest_qmp(s, "{ 'execute': 'qom-set', 'arguments': "
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"{ 'path': %s, 'property': %s, 'value': %i } }",
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path, property, value);
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qobject_unref(r);
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}
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static void test_set_colocated_pins(const void *data)
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{
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QTestState *s = (QTestState *)data;
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/*
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* gpioV4-7 occupy bits within a single 32-bit value, so we want to make
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* sure that modifying one doesn't affect the other.
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*/
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qom_set_bool(s, "/machine/soc/gpio", "gpioV4", true);
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qom_set_bool(s, "/machine/soc/gpio", "gpioV5", false);
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qom_set_bool(s, "/machine/soc/gpio", "gpioV6", true);
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qom_set_bool(s, "/machine/soc/gpio", "gpioV7", false);
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g_assert(qom_get_bool(s, "/machine/soc/gpio", "gpioV4"));
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g_assert(!qom_get_bool(s, "/machine/soc/gpio", "gpioV5"));
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g_assert(qom_get_bool(s, "/machine/soc/gpio", "gpioV6"));
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g_assert(!qom_get_bool(s, "/machine/soc/gpio", "gpioV7"));
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}
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int main(int argc, char **argv)
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{
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QTestState *s;
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int r;
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g_test_init(&argc, &argv, NULL);
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s = qtest_init("-machine ast2600-evb");
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qtest_add_data_func("/ast2600/gpio/set_colocated_pins", s,
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test_set_colocated_pins);
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r = g_test_run();
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qtest_quit(s);
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return r;
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}
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