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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 4d9253fb76f59c6f474ca54fe2d45c5706cd86e3 / . / test / dm / led.c
blob: fde700be3864fbbaa4618167f0aca431e3219460 [file] [log] [blame]
Simon Glass3c43fba2015-07-06 12:54:34 -0600[diff] [blame]1/*
2 * Copyright (C) 2015 Google, Inc
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7#include <common.h>
8#include <dm.h>
9#include <led.h>
10#include <asm/gpio.h>
11#include <dm/test.h>
12#include <test/ut.h>
13
14DECLARE_GLOBAL_DATA_PTR;
15
16/* Base test of the led uclass */
17static int dm_test_led_base(struct unit_test_state *uts)
18{
19 struct udevice *dev;
20
21 /* Get the top-level device */
22 ut_assertok(uclass_get_device(UCLASS_LED, 0, &dev));
23 ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev));
24 ut_assertok(uclass_get_device(UCLASS_LED, 2, &dev));
25 ut_asserteq(-ENODEV, uclass_get_device(UCLASS_LED, 3, &dev));
26
27 return 0;
28}
29DM_TEST(dm_test_led_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
30
31/* Test of the led uclass using the led_gpio driver */
32static int dm_test_led_gpio(struct unit_test_state *uts)
33{
34 const int offset = 1;
35 struct udevice *dev, *gpio;
36
37 /*
38 * Check that we can manipulate an LED. LED 1 is connected to GPIO
39 * bank gpio_a, offset 1.
40 */
41 ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev));
42 ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio));
43 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
Simon Glassddae9fc2017-04-10 11:34:54 -0600[diff] [blame]44 ut_assertok(led_set_state(dev, LEDST_ON));
Simon Glass3c43fba2015-07-06 12:54:34 -0600[diff] [blame]45 ut_asserteq(1, sandbox_gpio_get_value(gpio, offset));
Simon Glass8f4b6122017-04-10 11:34:55 -0600[diff] [blame]46 ut_asserteq(LEDST_ON, led_get_state(dev));
Simon Glassddae9fc2017-04-10 11:34:54 -0600[diff] [blame]47
48 ut_assertok(led_set_state(dev, LEDST_OFF));
Simon Glass3c43fba2015-07-06 12:54:34 -0600[diff] [blame]49 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
Simon Glass8f4b6122017-04-10 11:34:55 -0600[diff] [blame]50 ut_asserteq(LEDST_OFF, led_get_state(dev));
Simon Glass3c43fba2015-07-06 12:54:34 -0600[diff] [blame]51
52 return 0;
53}
54DM_TEST(dm_test_led_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
55
Simon Glass9413ad42017-04-10 11:34:56 -0600[diff] [blame]56/* Test that we can toggle LEDs */
57static int dm_test_led_toggle(struct unit_test_state *uts)
58{
59 const int offset = 1;
60 struct udevice *dev, *gpio;
61
62 /*
63 * Check that we can manipulate an LED. LED 1 is connected to GPIO
64 * bank gpio_a, offset 1.
65 */
66 ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev));
67 ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio));
68 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
69 ut_assertok(led_set_state(dev, LEDST_TOGGLE));
70 ut_asserteq(1, sandbox_gpio_get_value(gpio, offset));
71 ut_asserteq(LEDST_ON, led_get_state(dev));
72
73 ut_assertok(led_set_state(dev, LEDST_TOGGLE));
74 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
75 ut_asserteq(LEDST_OFF, led_get_state(dev));
76
77 return 0;
78}
79DM_TEST(dm_test_led_toggle, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
80
Simon Glass3c43fba2015-07-06 12:54:34 -0600[diff] [blame]81/* Test obtaining an LED by label */
82static int dm_test_led_label(struct unit_test_state *uts)
83{
84 struct udevice *dev, *cmp;
85
86 ut_assertok(led_get_by_label("sandbox:red", &dev));
87 ut_asserteq(1, device_active(dev));
88 ut_assertok(uclass_get_device(UCLASS_LED, 1, &cmp));
89 ut_asserteq_ptr(dev, cmp);
90
91 ut_assertok(led_get_by_label("sandbox:green", &dev));
92 ut_asserteq(1, device_active(dev));
93 ut_assertok(uclass_get_device(UCLASS_LED, 2, &cmp));
94 ut_asserteq_ptr(dev, cmp);
95
96 ut_asserteq(-ENODEV, led_get_by_label("sandbox:blue", &dev));
97
98 return 0;
99}
100DM_TEST(dm_test_led_label, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
Simon Glass53378da2017-04-10 11:34:57 -0600[diff] [blame]101
102/* Test LED blinking */
103#ifdef CONFIG_LED_BLINK
104static int dm_test_led_blink(struct unit_test_state *uts)
105{
106 const int offset = 1;
107 struct udevice *dev, *gpio;
108
109 /*
110 * Check that we get an error when trying to blink an LED, since it is
111 * not supported by the GPIO LED driver.
112 */
113 ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev));
114 ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio));
115 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
116 ut_asserteq(-ENOSYS, led_set_state(dev, LEDST_BLINK));
117 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
118 ut_asserteq(LEDST_OFF, led_get_state(dev));
119 ut_asserteq(-ENOSYS, led_set_period(dev, 100));
120
121 return 0;
122}
123DM_TEST(dm_test_led_blink, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
124#endif