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dm: test: Add a test for the LED uclass

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Add a test to confirm that we can adjust LEDs using the led_gpio driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-07-06 12:54:34 -06:00
parent fb8a5ffc77
commit 3c43fba3d2
5 changed files with 95 additions and 0 deletions
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14
arch/sandbox/dts/test.dts
View file

@ -180,6 +180,20 @@
};
};
leds {
compatible = "gpio-leds";
iracibble {
gpios = <&gpio_a 1 0>;
label = "sandbox:red";
};
martinet {
gpios = <&gpio_a 2 0>;
label = "sandbox:green";
};
};
mmc {
compatible = "sandbox,mmc";
};

2
configs/sandbox_defconfig
View file

@ -49,3 +49,5 @@ CONFIG_CLK=y
CONFIG_RESET=y
CONFIG_RAM=y
CONFIG_DM_MMC=y
CONFIG_LED=y
CONFIG_LED_GPIO=y

6
drivers/led/led_gpio.c
View file

@ -41,10 +41,16 @@ static int led_gpio_probe(struct udevice *dev)
static int led_gpio_remove(struct udevice *dev)
{
/*
* The GPIO driver may have already been removed. We will need to
* address this more generally.
*/
#ifndef CONFIG_SANDBOX
struct led_gpio_priv *priv = dev_get_priv(dev);
if (dm_gpio_is_valid(&priv->gpio))
dm_gpio_free(dev, &priv->gpio);
#endif
return 0;
}

1
test/dm/Makefile
View file

@ -19,6 +19,7 @@ obj-$(CONFIG_CLK) += clk.o
obj-$(CONFIG_DM_ETH) += eth.o
obj-$(CONFIG_DM_GPIO) += gpio.o
obj-$(CONFIG_DM_I2C) += i2c.o
obj-$(CONFIG_LED) += led.o
obj-$(CONFIG_DM_MMC) += mmc.o
obj-$(CONFIG_DM_PCI) += pci.o
obj-$(CONFIG_RAM) += ram.o

72
test/dm/led.c Normal file
View file

@ -0,0 +1,72 @@
/*
* Copyright (C) 2015 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <led.h>
#include <asm/gpio.h>
#include <dm/test.h>
#include <test/ut.h>
DECLARE_GLOBAL_DATA_PTR;
/* Base test of the led uclass */
static int dm_test_led_base(struct unit_test_state *uts)
{
struct udevice *dev;
/* Get the top-level device */
ut_assertok(uclass_get_device(UCLASS_LED, 0, &dev));
ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev));
ut_assertok(uclass_get_device(UCLASS_LED, 2, &dev));
ut_asserteq(-ENODEV, uclass_get_device(UCLASS_LED, 3, &dev));
return 0;
}
DM_TEST(dm_test_led_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test of the led uclass using the led_gpio driver */
static int dm_test_led_gpio(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));
led_set_on(dev, 1);
ut_asserteq(1, sandbox_gpio_get_value(gpio, offset));
led_set_on(dev, 0);
ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
return 0;
}
DM_TEST(dm_test_led_gpio, 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)
{
struct udevice *dev, *cmp;
ut_assertok(led_get_by_label("sandbox:red", &dev));
ut_asserteq(1, device_active(dev));
ut_assertok(uclass_get_device(UCLASS_LED, 1, &cmp));
ut_asserteq_ptr(dev, cmp);
ut_assertok(led_get_by_label("sandbox:green", &dev));
ut_asserteq(1, device_active(dev));
ut_assertok(uclass_get_device(UCLASS_LED, 2, &cmp));
ut_asserteq_ptr(dev, cmp);
ut_asserteq(-ENODEV, led_get_by_label("sandbox:blue", &dev));
return 0;
}
DM_TEST(dm_test_led_label, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);