test: Add tests for the multiplexer framework
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>
This commit is contained in:
Jean-Jacques Hiblot
Tom Rini
parent
4145fc189c
commit
739592ccbb
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@ -3,6 +3,7 @@
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/gpio/sandbox-gpio.h>
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#include <dt-bindings/pinctrl/sandbox-pinmux.h>
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#include <dt-bindings/mux/mux.h>
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/ {
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model = "sandbox";
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@ -133,6 +134,12 @@
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interrupts-extended = <&irq 3 0>;
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acpi,name = "GHIJ";
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phandle-value = <&gpio_c 10>, <0xFFFFFFFF 20>, <&gpio_a 30>;
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mux-controls = <&muxcontroller0 0>, <&muxcontroller0 1>,
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<&muxcontroller0 2>, <&muxcontroller0 3>,
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<&muxcontroller1>;
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mux-control-names = "mux0", "mux1", "mux2", "mux3", "mux4";
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mux-syscon = <&syscon3>;
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};
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junk {
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@ -170,6 +177,9 @@
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compatible = "denx,u-boot-fdt-test";
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ping-expect = <3>;
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ping-add = <3>;
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mux-controls = <&muxcontroller0 0>;
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mux-control-names = "mux0";
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};
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phy_provider0: gen_phy@0 {
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@ -884,6 +894,29 @@
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0x58 8>;
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};
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syscon3: syscon@3 {
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compatible = "simple-mfd", "syscon";
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reg = <0x000100 0x10>;
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muxcontroller0: a-mux-controller {
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compatible = "mmio-mux";
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#mux-control-cells = <1>;
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mux-reg-masks = <0x0 0x30>, /* 0: reg 0x0, bits 5:4 */
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<0xc 0x1E>, /* 1: reg 0xc, bits 4:1 */
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<0x4 0xFF>; /* 2: reg 0x4, bits 7:0 */
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idle-states = <MUX_IDLE_AS_IS>, <0x02>, <0x73>;
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u-boot,mux-autoprobe;
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};
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};
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muxcontroller1: emul-mux-controller {
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compatible = "mux-emul";
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#mux-control-cells = <0>;
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u-boot,mux-autoprobe;
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idle-state = <0xabcd>;
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};
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timer@0 {
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compatible = "sandbox,timer";
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clock-frequency = <1000000>;
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@ -179,6 +179,8 @@ CONFIG_SPI_FLASH_SPANSION=y
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CONFIG_SPI_FLASH_STMICRO=y
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CONFIG_SPI_FLASH_SST=y
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CONFIG_SPI_FLASH_WINBOND=y
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CONFIG_MULTIPLEXER=y
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CONFIG_MUX_MMIO=y
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CONFIG_DM_ETH=y
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CONFIG_NVME=y
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CONFIG_PCI=y
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@ -57,6 +57,8 @@ obj-$(CONFIG_DM_SPI_FLASH) += sf.o
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obj-$(CONFIG_SMEM) += smem.o
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obj-$(CONFIG_DM_SPI) += spi.o
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obj-y += syscon.o
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obj-$(CONFIG_MUX_MMIO) += mux-mmio.o
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obj-$(CONFIG_MULTIPLEXER) += mux-emul.o
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obj-$(CONFIG_DM_USB) += usb.o
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obj-$(CONFIG_DM_PMIC) += pmic.o
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obj-$(CONFIG_DM_REGULATOR) += regulator.o
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@ -0,0 +1,105 @@
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// 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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@ -0,0 +1,138 @@
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// 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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