test: add a simple test for the adc-keys button driver
Add adc-keys device to the sandbox/test.dts and connect it to the channel #3 of the sandbox_adc driver. The default values sampled by sandbox_adc driver determines that button3 and button4 are released and button5 is pressed. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
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@ -2,6 +2,7 @@
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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/input/input.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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@ -69,6 +70,30 @@
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};
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};
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buttons2 {
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compatible = "adc-keys";
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io-channels = <&adc 3>;
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keyup-threshold-microvolt = <3000000>;
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button-up {
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label = "button3";
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linux,code = <KEY_F3>;
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press-threshold-microvolt = <1500000>;
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};
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button-down {
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label = "button4";
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linux,code = <KEY_F4>;
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press-threshold-microvolt = <1000000>;
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};
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button-enter {
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label = "button5";
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linux,code = <KEY_F5>;
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press-threshold-microvolt = <500000>;
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};
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};
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cros_ec: cros-ec {
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reg = <0 0>;
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compatible = "google,cros-ec-sandbox";
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@ -587,8 +612,9 @@
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i2c-eeprom = <&bootcount_i2c>;
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};
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adc@0 {
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adc: adc@0 {
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compatible = "sandbox,adc";
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#io-channel-cells = <1>;
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vdd-supply = <&buck2>;
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vss-microvolts = <0>;
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};
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@ -122,6 +122,7 @@ CONFIG_DM_BOOTCOUNT=y
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CONFIG_DM_BOOTCOUNT_RTC=y
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CONFIG_DM_BOOTCOUNT_I2C_EEPROM=y
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CONFIG_BUTTON=y
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CONFIG_BUTTON_ADC=y
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CONFIG_BUTTON_GPIO=y
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CONFIG_CLK=y
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CONFIG_CLK_COMPOSITE_CCF=y
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@ -7,7 +7,10 @@
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#include <common.h>
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#include <dm.h>
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#include <adc.h>
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#include <button.h>
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#include <power/regulator.h>
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#include <power/sandbox_pmic.h>
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#include <asm/gpio.h>
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#include <dm/test.h>
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#include <test/ut.h>
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@ -17,11 +20,20 @@ static int dm_test_button_base(struct unit_test_state *uts)
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{
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struct udevice *dev;
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/* Get the top-level device */
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/* Get the top-level gpio buttons device */
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ut_assertok(uclass_get_device(UCLASS_BUTTON, 0, &dev));
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/* Get the 2 gpio buttons */
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ut_assertok(uclass_get_device(UCLASS_BUTTON, 1, &dev));
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ut_assertok(uclass_get_device(UCLASS_BUTTON, 2, &dev));
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ut_asserteq(-ENODEV, uclass_get_device(UCLASS_BUTTON, 3, &dev));
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/* Get the top-level adc buttons device */
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ut_assertok(uclass_get_device(UCLASS_BUTTON, 3, &dev));
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/* Get the 3 adc buttons */
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ut_assertok(uclass_get_device(UCLASS_BUTTON, 4, &dev));
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ut_assertok(uclass_get_device(UCLASS_BUTTON, 5, &dev));
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ut_assertok(uclass_get_device(UCLASS_BUTTON, 6, &dev));
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ut_asserteq(-ENODEV, uclass_get_device(UCLASS_BUTTON, 7, &dev));
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return 0;
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}
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@ -72,3 +84,37 @@ static int dm_test_button_label(struct unit_test_state *uts)
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return 0;
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}
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DM_TEST(dm_test_button_label, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
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/* Test adc-keys driver */
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static int dm_test_button_keys_adc(struct unit_test_state *uts)
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{
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struct udevice *supply;
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struct udevice *dev;
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int uV;
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ut_assertok(uclass_get_device_by_name(UCLASS_ADC, "adc@0", &dev));
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ut_assertok(regulator_get_by_devname(SANDBOX_BUCK2_DEVNAME, &supply));
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ut_assertok(regulator_set_value(supply, SANDBOX_BUCK2_SET_UV));
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ut_asserteq(SANDBOX_BUCK2_SET_UV, regulator_get_value(supply));
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/* Update ADC plat and get new Vdd value */
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ut_assertok(adc_vdd_value(dev, &uV));
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ut_asserteq(SANDBOX_BUCK2_SET_UV, uV);
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/*
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* sandbox-adc returns constant value on channel 3, is used by adc-keys:
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* SANDBOX_ADC_CHANNEL3_DATA * SANDBOX_BUCK2_SET_UV / SANDBOX_ADC_DATA_MASK =
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* 0x3000 * 3300000 / 0xffff = 618759uV
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* This means that button3 and button4 are released and button5
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* is pressed.
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*/
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ut_assertok(button_get_by_label("button3", &dev));
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ut_asserteq(BUTTON_OFF, button_get_state(dev));
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ut_assertok(button_get_by_label("button4", &dev));
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ut_asserteq(BUTTON_OFF, button_get_state(dev));
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ut_assertok(button_get_by_label("button5", &dev));
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ut_asserteq(BUTTON_ON, button_get_state(dev));
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return 0;
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}
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DM_TEST(dm_test_button_keys_adc, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
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