2 * Copyright (C) 2013 Google, Inc
4 * SPDX-License-Identifier: GPL-2.0+
16 DECLARE_GLOBAL_DATA_PTR;
18 /* Test that sandbox GPIOs work correctly */
19 static int dm_test_gpio(struct dm_test_state *dms)
21 unsigned int offset, gpio;
22 struct dm_gpio_ops *ops;
29 * We expect to get 3 banks. One is anonymous (just numbered) and
30 * comes from platdata. The other two are named a (20 gpios)
31 * and b (10 gpios) and come from the device tree. See
34 ut_assertok(gpio_lookup_name("b4", &dev, &offset, &gpio));
35 ut_asserteq_str(dev->name, "extra-gpios");
36 ut_asserteq(4, offset);
37 ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 20 + 4, gpio);
39 name = gpio_get_bank_info(dev, &offset_count);
40 ut_asserteq_str("b", name);
41 ut_asserteq(10, offset_count);
43 /* Get the operations for this device */
44 ops = gpio_get_ops(dev);
45 ut_assert(ops->get_function);
47 /* Cannot get a value until it is reserved */
48 ut_asserteq(-EBUSY, gpio_get_value(gpio + 1));
50 * Now some tests that use the 'sandbox' back door. All GPIOs
51 * should default to input, include b4 that we are using here.
53 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
54 ut_asserteq_str("b4: input: 0 [ ]", buf);
56 /* Change it to an output */
57 sandbox_gpio_set_direction(dev, offset, 1);
58 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
59 ut_asserteq_str("b4: output: 0 [ ]", buf);
61 sandbox_gpio_set_value(dev, offset, 1);
62 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
63 ut_asserteq_str("b4: output: 1 [ ]", buf);
65 ut_assertok(gpio_request(gpio, "testing"));
66 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
67 ut_asserteq_str("b4: output: 1 [x] testing", buf);
69 /* Change the value a bit */
70 ut_asserteq(1, ops->get_value(dev, offset));
71 ut_assertok(ops->set_value(dev, offset, 0));
72 ut_asserteq(0, ops->get_value(dev, offset));
73 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
74 ut_asserteq_str("b4: output: 0 [x] testing", buf);
75 ut_assertok(ops->set_value(dev, offset, 1));
76 ut_asserteq(1, ops->get_value(dev, offset));
78 /* Make it an input */
79 ut_assertok(ops->direction_input(dev, offset));
80 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
81 ut_asserteq_str("b4: input: 1 [x] testing", buf);
82 sandbox_gpio_set_value(dev, offset, 0);
83 ut_asserteq(0, sandbox_gpio_get_value(dev, offset));
84 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
85 ut_asserteq_str("b4: input: 0 [x] testing", buf);
87 ut_assertok(gpio_free(gpio));
88 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
89 ut_asserteq_str("b4: input: 0 [ ]", buf);
91 /* Check the 'a' bank also */
92 ut_assertok(gpio_lookup_name("a15", &dev, &offset, &gpio));
93 ut_asserteq_str(dev->name, "base-gpios");
94 ut_asserteq(15, offset);
95 ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 15, gpio);
97 name = gpio_get_bank_info(dev, &offset_count);
98 ut_asserteq_str("a", name);
99 ut_asserteq(20, offset_count);
103 DM_TEST(dm_test_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
105 /* Test that sandbox anonymous GPIOs work correctly */
106 static int dm_test_gpio_anon(struct dm_test_state *dms)
108 unsigned int offset, gpio;
113 /* And the anonymous bank */
114 ut_assertok(gpio_lookup_name("14", &dev, &offset, &gpio));
115 ut_asserteq_str(dev->name, "gpio_sandbox");
116 ut_asserteq(14, offset);
117 ut_asserteq(14, gpio);
119 name = gpio_get_bank_info(dev, &offset_count);
120 ut_asserteq_ptr(NULL, name);
121 ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT, offset_count);
125 DM_TEST(dm_test_gpio_anon, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
127 /* Test that gpio_requestf() works as expected */
128 static int dm_test_gpio_requestf(struct dm_test_state *dms)
130 unsigned int offset, gpio;
134 ut_assertok(gpio_lookup_name("b5", &dev, &offset, &gpio));
135 ut_assertok(gpio_requestf(gpio, "testing %d %s", 1, "hi"));
136 sandbox_gpio_set_direction(dev, offset, 1);
137 sandbox_gpio_set_value(dev, offset, 1);
138 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
139 ut_asserteq_str("b5: output: 1 [x] testing 1 hi", buf);
143 DM_TEST(dm_test_gpio_requestf, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
145 /* Test that gpio_request() copies its string */
146 static int dm_test_gpio_copy(struct dm_test_state *dms)
148 unsigned int offset, gpio;
150 char buf[80], name[10];
152 ut_assertok(gpio_lookup_name("b6", &dev, &offset, &gpio));
153 strcpy(name, "odd_name");
154 ut_assertok(gpio_request(gpio, name));
155 sandbox_gpio_set_direction(dev, offset, 1);
156 sandbox_gpio_set_value(dev, offset, 1);
157 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
158 ut_asserteq_str("b6: output: 1 [x] odd_name", buf);
159 strcpy(name, "nothing");
160 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
161 ut_asserteq_str("b6: output: 1 [x] odd_name", buf);
165 DM_TEST(dm_test_gpio_copy, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
167 /* Test that we don't leak memory with GPIOs */
168 static int dm_test_gpio_leak(struct dm_test_state *dms)
170 ut_assertok(dm_test_gpio(dms));
171 ut_assertok(dm_test_gpio_anon(dms));
172 ut_assertok(dm_test_gpio_requestf(dms));
173 ut_assertok(dm_leak_check_end(dms));
178 DM_TEST(dm_test_gpio_leak, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);