139 lines
4.3 KiB
C
139 lines
4.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
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* Jean-Jacques Hiblot <jjhiblot@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 <regmap.h>
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#include <syscon.h>
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#include <asm/test.h>
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#include <dm/test.h>
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#include <dm/device-internal.h>
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#include <test/ut.h>
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static int dm_test_mux_mmio_select(struct unit_test_state *uts)
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{
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struct udevice *dev, *dev_b;
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struct regmap *map;
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struct mux_control *ctl0_a, *ctl0_b;
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struct mux_control *ctl1;
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struct mux_control *ctl_err;
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u32 val;
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int i;
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sandbox_set_enable_memio(true);
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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(uclass_get_device_by_name(UCLASS_TEST_FDT, "b-test",
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&dev_b));
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map = syscon_regmap_lookup_by_phandle(dev, "mux-syscon");
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ut_assertok_ptr(map);
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ut_assert(map);
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ut_assertok(mux_control_get(dev, "mux0", &ctl0_a));
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ut_assertok(mux_control_get(dev, "mux1", &ctl1));
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ut_asserteq(-ERANGE, mux_control_get(dev, "mux3", &ctl_err));
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ut_asserteq(-ENODATA, mux_control_get(dev, "dummy", &ctl_err));
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ut_assertok(mux_control_get(dev_b, "mux0", &ctl0_b));
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for (i = 0; i < mux_control_states(ctl0_a); i++) {
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/* Select a new state and verify the value in the regmap. */
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ut_assertok(mux_control_select(ctl0_a, i));
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ut_assertok(regmap_read(map, 0, &val));
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ut_asserteq(i, (val & 0x30) >> 4);
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/*
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* Deselect the mux and verify that the value in the regmap
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* reflects the idle state (fixed to MUX_IDLE_AS_IS).
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*/
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ut_assertok(mux_control_deselect(ctl0_a));
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ut_assertok(regmap_read(map, 0, &val));
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ut_asserteq(i, (val & 0x30) >> 4);
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}
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for (i = 0; i < mux_control_states(ctl1); i++) {
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/* Select a new state and verify the value in the regmap. */
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ut_assertok(mux_control_select(ctl1, i));
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ut_assertok(regmap_read(map, 0xc, &val));
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ut_asserteq(i, (val & 0x1E) >> 1);
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/*
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* Deselect the mux and verify that the value in the regmap
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* reflects the idle state (fixed to 2).
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*/
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ut_assertok(mux_control_deselect(ctl1));
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ut_assertok(regmap_read(map, 0xc, &val));
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ut_asserteq(2, (val & 0x1E) >> 1);
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}
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/* Try unbalanced selection/deselection. */
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ut_assertok(mux_control_select(ctl0_a, 0));
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ut_asserteq(-EBUSY, mux_control_select(ctl0_a, 1));
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ut_asserteq(-EBUSY, mux_control_select(ctl0_a, 0));
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ut_assertok(mux_control_deselect(ctl0_a));
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/* Try concurrent selection. */
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ut_assertok(mux_control_select(ctl0_a, 0));
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ut_assert(mux_control_select(ctl0_b, 0));
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ut_assertok(mux_control_deselect(ctl0_a));
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ut_assertok(mux_control_select(ctl0_b, 0));
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ut_assert(mux_control_select(ctl0_a, 0));
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ut_assertok(mux_control_deselect(ctl0_b));
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ut_assertok(mux_control_select(ctl0_a, 0));
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ut_assertok(mux_control_deselect(ctl0_a));
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return 0;
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}
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DM_TEST(dm_test_mux_mmio_select, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
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/* Test that managed API for mux work correctly */
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static int dm_test_devm_mux_mmio(struct unit_test_state *uts)
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{
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struct udevice *dev, *dev_b;
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struct mux_control *ctl0_a, *ctl0_b;
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struct mux_control *ctl1;
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struct mux_control *ctl_err;
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sandbox_set_enable_memio(true);
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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(uclass_get_device_by_name(UCLASS_TEST_FDT, "b-test",
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&dev_b));
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ctl0_a = devm_mux_control_get(dev, "mux0");
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ut_assertok_ptr(ctl0_a);
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ut_assert(ctl0_a);
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ctl1 = devm_mux_control_get(dev, "mux1");
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ut_assertok_ptr(ctl1);
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ut_assert(ctl1);
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ctl_err = devm_mux_control_get(dev, "mux3");
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ut_asserteq(-ERANGE, PTR_ERR(ctl_err));
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ctl_err = devm_mux_control_get(dev, "dummy");
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ut_asserteq(-ENODATA, PTR_ERR(ctl_err));
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ctl0_b = devm_mux_control_get(dev_b, "mux0");
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ut_assertok_ptr(ctl0_b);
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ut_assert(ctl0_b);
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/* Try concurrent selection. */
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ut_assertok(mux_control_select(ctl0_a, 0));
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ut_assert(mux_control_select(ctl0_b, 0));
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ut_assertok(mux_control_deselect(ctl0_a));
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ut_assertok(mux_control_select(ctl0_b, 0));
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ut_assert(mux_control_select(ctl0_a, 0));
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ut_assertok(mux_control_deselect(ctl0_b));
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/* Remove one device and check that the mux is released. */
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ut_assertok(mux_control_select(ctl0_a, 0));
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ut_assert(mux_control_select(ctl0_b, 0));
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device_remove(dev, DM_REMOVE_NORMAL);
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ut_assertok(mux_control_select(ctl0_b, 0));
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device_remove(dev_b, DM_REMOVE_NORMAL);
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return 0;
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}
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DM_TEST(dm_test_devm_mux_mmio, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
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