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-rw-r--r--roms/u-boot/test/dm/mux-emul.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/roms/u-boot/test/dm/mux-emul.c b/roms/u-boot/test/dm/mux-emul.c
new file mode 100644
index 000000000..58233edc9
--- /dev/null
+++ b/roms/u-boot/test/dm/mux-emul.c
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
+ * Pratyush Yadav <p.yadav@ti.com>
+ */
+#include <common.h>
+#include <dm.h>
+#include <mux.h>
+#include <mux-internal.h>
+#include <dm/test.h>
+#include <test/ut.h>
+#include <asm/global_data.h>
+
+struct mux_emul_priv {
+ u32 state;
+};
+
+static int mux_emul_set(struct mux_control *mux, int state)
+{
+ struct mux_emul_priv *priv = dev_get_priv(mux->dev);
+
+ priv->state = state;
+ return 0;
+}
+
+static int mux_emul_probe(struct udevice *dev)
+{
+ struct mux_chip *mux_chip = dev_get_uclass_priv(dev);
+ struct mux_control *mux;
+ u32 idle_state;
+ int ret;
+
+ ret = mux_alloc_controllers(dev, 1);
+ if (ret < 0)
+ return ret;
+
+ mux = &mux_chip->mux[0];
+
+ ret = dev_read_u32(dev, "idle-state", &idle_state);
+ if (ret)
+ return ret;
+
+ mux->idle_state = idle_state;
+ mux->states = 0x100000;
+
+ return 0;
+}
+
+static const struct mux_control_ops mux_emul_ops = {
+ .set = mux_emul_set,
+};
+
+static const struct udevice_id mux_emul_of_match[] = {
+ { .compatible = "mux-emul" },
+ { /* sentinel */ },
+};
+
+U_BOOT_DRIVER(emul_mux) = {
+ .name = "mux-emul",
+ .id = UCLASS_MUX,
+ .of_match = mux_emul_of_match,
+ .ops = &mux_emul_ops,
+ .probe = mux_emul_probe,
+ .priv_auto = sizeof(struct mux_emul_priv),
+};
+
+static int dm_test_mux_emul_default_state(struct unit_test_state *uts)
+{
+ struct udevice *dev;
+ struct mux_control *mux;
+ struct mux_emul_priv *priv;
+
+ ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "a-test",
+ &dev));
+ ut_assertok(mux_control_get(dev, "mux4", &mux));
+
+ priv = dev_get_priv(mux->dev);
+
+ ut_asserteq(0xabcd, priv->state);
+
+ return 0;
+}
+DM_TEST(dm_test_mux_emul_default_state, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+static int dm_test_mux_emul_select_deselect(struct unit_test_state *uts)
+{
+ struct udevice *dev;
+ struct mux_control *mux;
+ struct mux_emul_priv *priv;
+
+ gd->flags &= ~(GD_FLG_SILENT | GD_FLG_RECORD);
+ ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "a-test",
+ &dev));
+ ut_assertok(mux_control_get(dev, "mux4", &mux));
+
+ priv = dev_get_priv(mux->dev);
+
+ ut_assertok(mux_control_select(mux, 0x1234));
+ ut_asserteq(priv->state, 0x1234);
+
+ ut_assertok(mux_control_deselect(mux));
+ ut_asserteq(priv->state, 0xabcd);
+
+ return 0;
+}
+DM_TEST(dm_test_mux_emul_select_deselect, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);