From 9413ad4f0def2e06a5042106a6e1650a1aa03a5a Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 10 Apr 2017 11:34:56 -0600 Subject: dm: led: Support toggling LEDs Add support for toggling an LED into the uclass interface. This can be efficiently implemented by the driver. Signed-off-by: Simon Glass Reviewed-by: Ziping Chen --- test/dm/led.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'test') diff --git a/test/dm/led.c b/test/dm/led.c index 68aa39b..2cc2412 100644 --- a/test/dm/led.c +++ b/test/dm/led.c @@ -53,6 +53,31 @@ static int dm_test_led_gpio(struct unit_test_state *uts) } DM_TEST(dm_test_led_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); +/* Test that we can toggle LEDs */ +static int dm_test_led_toggle(struct unit_test_state *uts) +{ + const int offset = 1; + struct udevice *dev, *gpio; + + /* + * Check that we can manipulate an LED. LED 1 is connected to GPIO + * bank gpio_a, offset 1. + */ + ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev)); + ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio)); + ut_asserteq(0, sandbox_gpio_get_value(gpio, offset)); + ut_assertok(led_set_state(dev, LEDST_TOGGLE)); + ut_asserteq(1, sandbox_gpio_get_value(gpio, offset)); + ut_asserteq(LEDST_ON, led_get_state(dev)); + + ut_assertok(led_set_state(dev, LEDST_TOGGLE)); + ut_asserteq(0, sandbox_gpio_get_value(gpio, offset)); + ut_asserteq(LEDST_OFF, led_get_state(dev)); + + return 0; +} +DM_TEST(dm_test_led_toggle, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + /* Test obtaining an LED by label */ static int dm_test_led_label(struct unit_test_state *uts) { -- cgit v1.1