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Provide tests to check the behavior of the multiplexer framework. Two sets of tests are added. One is using an emulated multiplexer driver that can be used to test basic functionality like select, deselect, etc. The other is using the mmio mux which adds tests specific to it. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
105 lines
2.3 KiB
C
105 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
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* Pratyush Yadav <p.yadav@ti.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <mux.h>
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#include <mux-internal.h>
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#include <dm/test.h>
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#include <test/ut.h>
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struct mux_emul_priv {
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u32 state;
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};
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static int mux_emul_set(struct mux_control *mux, int state)
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{
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struct mux_emul_priv *priv = dev_get_priv(mux->dev);
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priv->state = state;
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return 0;
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}
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static int mux_emul_probe(struct udevice *dev)
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{
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struct mux_chip *mux_chip = dev_get_uclass_priv(dev);
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struct mux_control *mux;
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u32 idle_state;
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int ret;
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ret = mux_alloc_controllers(dev, 1);
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if (ret < 0)
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return ret;
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mux = &mux_chip->mux[0];
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ret = dev_read_u32(dev, "idle-state", &idle_state);
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if (ret)
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return ret;
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mux->idle_state = idle_state;
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mux->states = 0x100000;
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return 0;
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}
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static const struct mux_control_ops mux_emul_ops = {
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.set = mux_emul_set,
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};
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static const struct udevice_id mux_emul_of_match[] = {
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{ .compatible = "mux-emul" },
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{ /* sentinel */ },
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};
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U_BOOT_DRIVER(emul_mux) = {
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.name = "mux-emul",
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.id = UCLASS_MUX,
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.of_match = mux_emul_of_match,
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.ops = &mux_emul_ops,
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.probe = mux_emul_probe,
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.priv_auto_alloc_size = sizeof(struct mux_emul_priv),
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};
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static int dm_test_mux_emul_default_state(struct unit_test_state *uts)
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{
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struct udevice *dev;
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struct mux_control *mux;
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struct mux_emul_priv *priv;
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ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "a-test",
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&dev));
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ut_assertok(mux_control_get(dev, "mux4", &mux));
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priv = dev_get_priv(mux->dev);
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ut_asserteq(0xabcd, priv->state);
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return 0;
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}
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DM_TEST(dm_test_mux_emul_default_state, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
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static int dm_test_mux_emul_select_deselect(struct unit_test_state *uts)
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{
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struct udevice *dev;
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struct mux_control *mux;
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struct mux_emul_priv *priv;
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gd->flags &= ~(GD_FLG_SILENT | GD_FLG_RECORD);
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ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "a-test",
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&dev));
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ut_assertok(mux_control_get(dev, "mux4", &mux));
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priv = dev_get_priv(mux->dev);
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ut_assertok(mux_control_select(mux, 0x1234));
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ut_asserteq(priv->state, 0x1234);
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ut_assertok(mux_control_deselect(mux));
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ut_asserteq(priv->state, 0xabcd);
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return 0;
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}
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DM_TEST(dm_test_mux_emul_select_deselect, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
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