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Simon Glass96495d92014-02-26 15:59:24 -07001/*
2 * Copyright (C) 2013 Google, Inc
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7#include <common.h>
8#include <fdtdec.h>
9#include <dm.h>
Simon Glass43241742014-10-04 11:29:51 -060010#include <dm/root.h>
Simon Glass96495d92014-02-26 15:59:24 -070011#include <dm/ut.h>
12#include <dm/test.h>
13#include <dm/util.h>
14#include <asm/gpio.h>
15
Simon Glass43241742014-10-04 11:29:51 -060016DECLARE_GLOBAL_DATA_PTR;
17
Simon Glass96495d92014-02-26 15:59:24 -070018/* Test that sandbox GPIOs work correctly */
19static int dm_test_gpio(struct dm_test_state *dms)
20{
21 unsigned int offset, gpio;
22 struct dm_gpio_ops *ops;
Heiko Schocher54c5d082014-05-22 12:43:05 +020023 struct udevice *dev;
Simon Glass96495d92014-02-26 15:59:24 -070024 const char *name;
25 int offset_count;
26 char buf[80];
27
28 /*
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
32 * test/dm/test.dts.
33 */
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);
38
39 name = gpio_get_bank_info(dev, &offset_count);
40 ut_asserteq_str("b", name);
41 ut_asserteq(10, offset_count);
42
43 /* Get the operations for this device */
44 ops = gpio_get_ops(dev);
Simon Glass4b8f11c2014-10-04 11:29:48 -060045 ut_assert(ops->get_function);
Simon Glass96495d92014-02-26 15:59:24 -070046
47 /* Cannot get a value until it is reserved */
Simon Glass4b8f11c2014-10-04 11:29:48 -060048 ut_asserteq(-EBUSY, gpio_get_value(gpio + 1));
Simon Glass96495d92014-02-26 15:59:24 -070049 /*
50 * Now some tests that use the 'sandbox' back door. All GPIOs
51 * should default to input, include b4 that we are using here.
52 */
Simon Glass4b8f11c2014-10-04 11:29:48 -060053 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
54 ut_asserteq_str("b4: input: 0 [ ]", buf);
Simon Glass96495d92014-02-26 15:59:24 -070055
56 /* Change it to an output */
57 sandbox_gpio_set_direction(dev, offset, 1);
Simon Glass4b8f11c2014-10-04 11:29:48 -060058 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
59 ut_asserteq_str("b4: output: 0 [ ]", buf);
Simon Glass96495d92014-02-26 15:59:24 -070060
61 sandbox_gpio_set_value(dev, offset, 1);
Simon Glass4b8f11c2014-10-04 11:29:48 -060062 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
63 ut_asserteq_str("b4: output: 1 [ ]", buf);
Simon Glass96495d92014-02-26 15:59:24 -070064
Simon Glass4b8f11c2014-10-04 11:29:48 -060065 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);
Simon Glass96495d92014-02-26 15:59:24 -070068
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));
Simon Glass4b8f11c2014-10-04 11:29:48 -060073 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
74 ut_asserteq_str("b4: output: 0 [x] testing", buf);
Simon Glass96495d92014-02-26 15:59:24 -070075 ut_assertok(ops->set_value(dev, offset, 1));
76 ut_asserteq(1, ops->get_value(dev, offset));
77
78 /* Make it an input */
79 ut_assertok(ops->direction_input(dev, offset));
Simon Glass4b8f11c2014-10-04 11:29:48 -060080 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
81 ut_asserteq_str("b4: input: 1 [x] testing", buf);
Simon Glass96495d92014-02-26 15:59:24 -070082 sandbox_gpio_set_value(dev, offset, 0);
83 ut_asserteq(0, sandbox_gpio_get_value(dev, offset));
Simon Glass4b8f11c2014-10-04 11:29:48 -060084 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
85 ut_asserteq_str("b4: input: 0 [x] testing", buf);
Simon Glass96495d92014-02-26 15:59:24 -070086
Simon Glass4b8f11c2014-10-04 11:29:48 -060087 ut_assertok(gpio_free(gpio));
88 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
89 ut_asserteq_str("b4: input: 0 [ ]", buf);
Simon Glass96495d92014-02-26 15:59:24 -070090
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);
96
97 name = gpio_get_bank_info(dev, &offset_count);
98 ut_asserteq_str("a", name);
99 ut_asserteq(20, offset_count);
100
Simon Glass4b8f11c2014-10-04 11:29:48 -0600101 return 0;
102}
103DM_TEST(dm_test_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
104
105/* Test that sandbox anonymous GPIOs work correctly */
106static int dm_test_gpio_anon(struct dm_test_state *dms)
107{
108 unsigned int offset, gpio;
109 struct udevice *dev;
110 const char *name;
111 int offset_count;
112
Simon Glass96495d92014-02-26 15:59:24 -0700113 /* 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);
118
119 name = gpio_get_bank_info(dev, &offset_count);
120 ut_asserteq_ptr(NULL, name);
121 ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT, offset_count);
122
123 return 0;
124}
Simon Glass4b8f11c2014-10-04 11:29:48 -0600125DM_TEST(dm_test_gpio_anon, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
Simon Glassd44f5972014-10-04 11:29:49 -0600126
127/* Test that gpio_requestf() works as expected */
128static int dm_test_gpio_requestf(struct dm_test_state *dms)
129{
130 unsigned int offset, gpio;
131 struct udevice *dev;
132 char buf[80];
133
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);
140
141 return 0;
142}
143DM_TEST(dm_test_gpio_requestf, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
Simon Glass43241742014-10-04 11:29:51 -0600144
145/* Test that gpio_request() copies its string */
146static int dm_test_gpio_copy(struct dm_test_state *dms)
147{
148 unsigned int offset, gpio;
149 struct udevice *dev;
150 char buf[80], name[10];
151
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);
162
163 return 0;
164}
165DM_TEST(dm_test_gpio_copy, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
166
167/* Test that we don't leak memory with GPIOs */
168static int dm_test_gpio_leak(struct dm_test_state *dms)
169{
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));
174
175 return 0;
176}
Simon Glass43241742014-10-04 11:29:51 -0600177DM_TEST(dm_test_gpio_leak, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
Simon Glass3669e0e2015-01-05 20:05:29 -0700178
179/* Test that we can find GPIOs using phandles */
180static int dm_test_gpio_phandles(struct dm_test_state *dms)
181{
182 struct gpio_desc desc, desc_list[8], desc_list2[8];
183 struct udevice *dev, *gpio_a, *gpio_b;
184
185 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
186 ut_asserteq_str("a-test", dev->name);
187
188 ut_assertok(gpio_request_by_name(dev, "test-gpios", 1, &desc, 0));
189 ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio_a));
190 ut_assertok(uclass_get_device(UCLASS_GPIO, 2, &gpio_b));
191 ut_asserteq_str("base-gpios", gpio_a->name);
192 ut_asserteq(true, !!device_active(gpio_a));
193 ut_asserteq_ptr(gpio_a, desc.dev);
194 ut_asserteq(4, desc.offset);
195 /* GPIOF_INPUT is the sandbox GPIO driver default */
196 ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_a, 4, NULL));
197 ut_assertok(dm_gpio_free(dev, &desc));
198
199 ut_asserteq(-ENOENT, gpio_request_by_name(dev, "test-gpios", 3, &desc,
200 0));
201 ut_asserteq_ptr(NULL, desc.dev);
202 ut_asserteq(desc.offset, 0);
203 ut_asserteq(-ENOENT, gpio_request_by_name(dev, "test-gpios", 5, &desc,
204 0));
205
206 /* Last GPIO is ignord as it comes after <0> */
207 ut_asserteq(3, gpio_request_list_by_name(dev, "test-gpios", desc_list,
208 ARRAY_SIZE(desc_list), 0));
209 ut_asserteq(-EBUSY, gpio_request_list_by_name(dev, "test-gpios",
210 desc_list2,
211 ARRAY_SIZE(desc_list2),
212 0));
213 ut_assertok(gpio_free_list(dev, desc_list, 3));
214 ut_asserteq(3, gpio_request_list_by_name(dev, "test-gpios", desc_list,
215 ARRAY_SIZE(desc_list),
216 GPIOD_IS_OUT |
217 GPIOD_IS_OUT_ACTIVE));
218 ut_asserteq_ptr(gpio_a, desc_list[0].dev);
219 ut_asserteq(1, desc_list[0].offset);
220 ut_asserteq_ptr(gpio_a, desc_list[1].dev);
221 ut_asserteq(4, desc_list[1].offset);
222 ut_asserteq_ptr(gpio_b, desc_list[2].dev);
223 ut_asserteq(5, desc_list[2].offset);
224 ut_asserteq(1, dm_gpio_get_value(desc_list));
225 ut_assertok(gpio_free_list(dev, desc_list, 3));
226
227 ut_asserteq(6, gpio_request_list_by_name(dev, "test2-gpios", desc_list,
228 ARRAY_SIZE(desc_list), 0));
229 /* This was set to output previously, so still will be */
230 ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_a, 1, NULL));
231
232 /* Active low should invert the input value */
233 ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_b, 6, NULL));
234 ut_asserteq(1, dm_gpio_get_value(&desc_list[2]));
235
236 ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_b, 7, NULL));
237 ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_b, 8, NULL));
238 ut_asserteq(0, dm_gpio_get_value(&desc_list[4]));
239 ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_b, 9, NULL));
240 ut_asserteq(1, dm_gpio_get_value(&desc_list[5]));
241
242
243 return 0;
244}
245DM_TEST(dm_test_gpio_phandles, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);