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-rw-r--r--arch/sandbox/dts/test.dts28
-rw-r--r--configs/sandbox_defconfig1
-rw-r--r--test/dm/button.c50
3 files changed, 76 insertions, 3 deletions
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index e95f463..202e091 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -2,6 +2,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/gpio/sandbox-gpio.h>
+#include <dt-bindings/input/input.h>
#include <dt-bindings/pinctrl/sandbox-pinmux.h>
#include <dt-bindings/mux/mux.h>
@@ -69,6 +70,30 @@
};
};
+ buttons2 {
+ compatible = "adc-keys";
+ io-channels = <&adc 3>;
+ keyup-threshold-microvolt = <3000000>;
+
+ button-up {
+ label = "button3";
+ linux,code = <KEY_F3>;
+ press-threshold-microvolt = <1500000>;
+ };
+
+ button-down {
+ label = "button4";
+ linux,code = <KEY_F4>;
+ press-threshold-microvolt = <1000000>;
+ };
+
+ button-enter {
+ label = "button5";
+ linux,code = <KEY_F5>;
+ press-threshold-microvolt = <500000>;
+ };
+ };
+
cros_ec: cros-ec {
reg = <0 0>;
compatible = "google,cros-ec-sandbox";
@@ -587,8 +612,9 @@
i2c-eeprom = <&bootcount_i2c>;
};
- adc@0 {
+ adc: adc@0 {
compatible = "sandbox,adc";
+ #io-channel-cells = <1>;
vdd-supply = <&buck2>;
vss-microvolts = <0>;
};
diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index 0c7674e..3731bf0 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -122,6 +122,7 @@ CONFIG_DM_BOOTCOUNT=y
CONFIG_DM_BOOTCOUNT_RTC=y
CONFIG_DM_BOOTCOUNT_I2C_EEPROM=y
CONFIG_BUTTON=y
+CONFIG_BUTTON_ADC=y
CONFIG_BUTTON_GPIO=y
CONFIG_CLK=y
CONFIG_CLK_COMPOSITE_CCF=y
diff --git a/test/dm/button.c b/test/dm/button.c
index ecaa47c..f8a7fab 100644
--- a/test/dm/button.c
+++ b/test/dm/button.c
@@ -7,7 +7,10 @@
#include <common.h>
#include <dm.h>
+#include <adc.h>
#include <button.h>
+#include <power/regulator.h>
+#include <power/sandbox_pmic.h>
#include <asm/gpio.h>
#include <dm/test.h>
#include <test/ut.h>
@@ -17,11 +20,20 @@ static int dm_test_button_base(struct unit_test_state *uts)
{
struct udevice *dev;
- /* Get the top-level device */
+ /* Get the top-level gpio buttons device */
ut_assertok(uclass_get_device(UCLASS_BUTTON, 0, &dev));
+ /* Get the 2 gpio buttons */
ut_assertok(uclass_get_device(UCLASS_BUTTON, 1, &dev));
ut_assertok(uclass_get_device(UCLASS_BUTTON, 2, &dev));
- ut_asserteq(-ENODEV, uclass_get_device(UCLASS_BUTTON, 3, &dev));
+
+ /* Get the top-level adc buttons device */
+ ut_assertok(uclass_get_device(UCLASS_BUTTON, 3, &dev));
+ /* Get the 3 adc buttons */
+ ut_assertok(uclass_get_device(UCLASS_BUTTON, 4, &dev));
+ ut_assertok(uclass_get_device(UCLASS_BUTTON, 5, &dev));
+ ut_assertok(uclass_get_device(UCLASS_BUTTON, 6, &dev));
+
+ ut_asserteq(-ENODEV, uclass_get_device(UCLASS_BUTTON, 7, &dev));
return 0;
}
@@ -72,3 +84,37 @@ static int dm_test_button_label(struct unit_test_state *uts)
return 0;
}
DM_TEST(dm_test_button_label, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test adc-keys driver */
+static int dm_test_button_keys_adc(struct unit_test_state *uts)
+{
+ struct udevice *supply;
+ struct udevice *dev;
+ int uV;
+
+ ut_assertok(uclass_get_device_by_name(UCLASS_ADC, "adc@0", &dev));
+
+ ut_assertok(regulator_get_by_devname(SANDBOX_BUCK2_DEVNAME, &supply));
+ ut_assertok(regulator_set_value(supply, SANDBOX_BUCK2_SET_UV));
+ ut_asserteq(SANDBOX_BUCK2_SET_UV, regulator_get_value(supply));
+ /* Update ADC plat and get new Vdd value */
+ ut_assertok(adc_vdd_value(dev, &uV));
+ ut_asserteq(SANDBOX_BUCK2_SET_UV, uV);
+
+ /*
+ * sandbox-adc returns constant value on channel 3, is used by adc-keys:
+ * SANDBOX_ADC_CHANNEL3_DATA * SANDBOX_BUCK2_SET_UV / SANDBOX_ADC_DATA_MASK =
+ * 0x3000 * 3300000 / 0xffff = 618759uV
+ * This means that button3 and button4 are released and button5
+ * is pressed.
+ */
+ ut_assertok(button_get_by_label("button3", &dev));
+ ut_asserteq(BUTTON_OFF, button_get_state(dev));
+ ut_assertok(button_get_by_label("button4", &dev));
+ ut_asserteq(BUTTON_OFF, button_get_state(dev));
+ ut_assertok(button_get_by_label("button5", &dev));
+ ut_asserteq(BUTTON_ON, button_get_state(dev));
+
+ return 0;
+}
+DM_TEST(dm_test_button_keys_adc, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);