From: Emmanuel Blot <[email protected]> Introduce a qtest for the PCA9555 16-bit I/O port expander.
This first set covers the power-on reset defaults and the read/write behaviour of the OUTPUT, CONFIG and POLARITY register pairs. Signed-off-by: Emmanuel Blot <[email protected]> Reviewed-by: Glenn Miles <[email protected]> Link: https://lore.kernel.org/qemu-devel/[email protected] Signed-off-by: Cédric Le Goater <[email protected]> --- tests/qtest/pca9555-test.c | 44 ++++++++++++++++++++++++++++++++++++++ tests/qtest/meson.build | 1 + 2 files changed, 45 insertions(+) create mode 100644 tests/qtest/pca9555-test.c diff --git a/tests/qtest/pca9555-test.c b/tests/qtest/pca9555-test.c new file mode 100644 index 000000000000..5945c3441e92 --- /dev/null +++ b/tests/qtest/pca9555-test.c @@ -0,0 +1,44 @@ +/* + * QTest testcase for the PCA9555 16-bit I/O port expander + * + * Copyright (c) Meta Platforms, Inc. and affiliates. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "qemu/osdep.h" +#include "hw/gpio/pca9552_regs.h" +#include "libqos/i2c.h" +#include "libqos/qgraph.h" + +#define PCA9555_TEST_ADDR 0x20 + +/* Verify power-on reset defaults match the PCA9555 datasheet. */ +static void test_reset_defaults(void *obj, void *data, QGuestAllocator *alloc) +{ + QI2CDevice *dev = (QI2CDevice *)obj; + + g_assert_cmphex(i2c_get8(dev, PCA9535_INPUT0), ==, 0xFF); + g_assert_cmphex(i2c_get8(dev, PCA9535_INPUT1), ==, 0xFF); + g_assert_cmphex(i2c_get8(dev, PCA9535_OUTPUT0), ==, 0xFF); + g_assert_cmphex(i2c_get8(dev, PCA9535_OUTPUT1), ==, 0xFF); + g_assert_cmphex(i2c_get8(dev, PCA9535_POLARITY0), ==, 0x00); + g_assert_cmphex(i2c_get8(dev, PCA9535_POLARITY1), ==, 0x00); + g_assert_cmphex(i2c_get8(dev, PCA9535_CONFIG0), ==, 0xFF); + g_assert_cmphex(i2c_get8(dev, PCA9535_CONFIG1), ==, 0xFF); +} + +static void pca9555_register_nodes(void) +{ + QOSGraphEdgeOptions opts = { + .extra_device_opts = "address=0x20" + }; + add_qi2c_address(&opts, &(QI2CAddress) { PCA9555_TEST_ADDR }); + + qos_node_create_driver("pca9555", i2c_device_create); + qos_node_consumes("pca9555", "i2c-bus", &opts); + + qos_add_test("reset-defaults", "pca9555", test_reset_defaults, NULL); +} + +libqos_init(pca9555_register_nodes); diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index 5e1fc597e6d1..e92130bd04dd 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -319,6 +319,7 @@ qos_test_ss.add( 'tulip-test.c', 'nvme-test.c', 'pca9552-test.c', + 'pca9555-test.c', 'pci-test.c', 'pcnet-test.c', 'rs5c372-test.c', -- 2.55.0
