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Simon Glass96495d902014-02-26 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 Glass96495d902014-02-26 15:59:24 -070011#include <dm/test.h>
12#include <dm/util.h>
13#include <asm/gpio.h>
Joe Hershbergere721b882015-05-20 14:27:27 -050014#include <test/ut.h>
Simon Glass96495d902014-02-26 15:59:24 -070015
Simon Glass43241742014-10-04 11:29:51 -060016DECLARE_GLOBAL_DATA_PTR;
17
Simon Glass96495d902014-02-26 15:59:24 -070018/* Test that sandbox GPIOs work correctly */
Joe Hershbergere721b882015-05-20 14:27:27 -050019static int dm_test_gpio(struct unit_test_state *uts)
Simon Glass96495d902014-02-26 15:59:24 -070020{
21 unsigned int offset, gpio;
22 struct dm_gpio_ops *ops;
Heiko Schocher54c5d082014-05-22 12:43:05 +020023 struct udevice *dev;
Simon Glass96495d902014-02-26 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 Glass96495d902014-02-26 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 Glass96495d902014-02-26 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 Glass96495d902014-02-26 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 Glass96495d902014-02-26 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 Glass96495d902014-02-26 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 Glass96495d902014-02-26 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 Glass96495d902014-02-26 15:59:24 -070075 ut_assertok(ops->set_value(dev, offset, 1));
76 ut_asserteq(1, ops->get_value(dev, offset));
77
mario.six@gdsys.cc743268f2016-05-25 15:15:23 +020078 /* Make it an open drain output, and reset it */
79 ut_asserteq(0, sandbox_gpio_get_open_drain(dev, offset));
80 ut_assertok(ops->set_open_drain(dev, offset, 1));
81 ut_asserteq(1, sandbox_gpio_get_open_drain(dev, offset));
82 ut_assertok(ops->set_open_drain(dev, offset, 0));
83 ut_asserteq(0, sandbox_gpio_get_open_drain(dev, offset));
84
Simon Glass96495d902014-02-26 15:59:24 -070085 /* Make it an input */
86 ut_assertok(ops->direction_input(dev, offset));
Simon Glass4b8f11c2014-10-04 11:29:48 -060087 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
88 ut_asserteq_str("b4: input: 1 [x] testing", buf);
Simon Glass96495d902014-02-26 15:59:24 -070089 sandbox_gpio_set_value(dev, offset, 0);
90 ut_asserteq(0, sandbox_gpio_get_value(dev, offset));
Simon Glass4b8f11c2014-10-04 11:29:48 -060091 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
92 ut_asserteq_str("b4: input: 0 [x] testing", buf);
Simon Glass96495d902014-02-26 15:59:24 -070093
Simon Glass4b8f11c2014-10-04 11:29:48 -060094 ut_assertok(gpio_free(gpio));
95 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
96 ut_asserteq_str("b4: input: 0 [ ]", buf);
Simon Glass96495d902014-02-26 15:59:24 -070097
98 /* Check the 'a' bank also */
99 ut_assertok(gpio_lookup_name("a15", &dev, &offset, &gpio));
100 ut_asserteq_str(dev->name, "base-gpios");
101 ut_asserteq(15, offset);
102 ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 15, gpio);
103
104 name = gpio_get_bank_info(dev, &offset_count);
105 ut_asserteq_str("a", name);
106 ut_asserteq(20, offset_count);
107
Simon Glass4b8f11c2014-10-04 11:29:48 -0600108 return 0;
109}
110DM_TEST(dm_test_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
111
112/* Test that sandbox anonymous GPIOs work correctly */
Joe Hershbergere721b882015-05-20 14:27:27 -0500113static int dm_test_gpio_anon(struct unit_test_state *uts)
Simon Glass4b8f11c2014-10-04 11:29:48 -0600114{
115 unsigned int offset, gpio;
116 struct udevice *dev;
117 const char *name;
118 int offset_count;
119
Simon Glass96495d902014-02-26 15:59:24 -0700120 /* And the anonymous bank */
121 ut_assertok(gpio_lookup_name("14", &dev, &offset, &gpio));
122 ut_asserteq_str(dev->name, "gpio_sandbox");
123 ut_asserteq(14, offset);
124 ut_asserteq(14, gpio);
125
126 name = gpio_get_bank_info(dev, &offset_count);
127 ut_asserteq_ptr(NULL, name);
128 ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT, offset_count);
129
130 return 0;
131}
Simon Glass4b8f11c2014-10-04 11:29:48 -0600132DM_TEST(dm_test_gpio_anon, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
Simon Glassd44f5972014-10-04 11:29:49 -0600133
134/* Test that gpio_requestf() works as expected */
Joe Hershbergere721b882015-05-20 14:27:27 -0500135static int dm_test_gpio_requestf(struct unit_test_state *uts)
Simon Glassd44f5972014-10-04 11:29:49 -0600136{
137 unsigned int offset, gpio;
138 struct udevice *dev;
139 char buf[80];
140
141 ut_assertok(gpio_lookup_name("b5", &dev, &offset, &gpio));
142 ut_assertok(gpio_requestf(gpio, "testing %d %s", 1, "hi"));
143 sandbox_gpio_set_direction(dev, offset, 1);
144 sandbox_gpio_set_value(dev, offset, 1);
145 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
146 ut_asserteq_str("b5: output: 1 [x] testing 1 hi", buf);
147
148 return 0;
149}
150DM_TEST(dm_test_gpio_requestf, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
Simon Glass43241742014-10-04 11:29:51 -0600151
152/* Test that gpio_request() copies its string */
Joe Hershbergere721b882015-05-20 14:27:27 -0500153static int dm_test_gpio_copy(struct unit_test_state *uts)
Simon Glass43241742014-10-04 11:29:51 -0600154{
155 unsigned int offset, gpio;
156 struct udevice *dev;
157 char buf[80], name[10];
158
159 ut_assertok(gpio_lookup_name("b6", &dev, &offset, &gpio));
160 strcpy(name, "odd_name");
161 ut_assertok(gpio_request(gpio, name));
162 sandbox_gpio_set_direction(dev, offset, 1);
163 sandbox_gpio_set_value(dev, offset, 1);
164 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
165 ut_asserteq_str("b6: output: 1 [x] odd_name", buf);
166 strcpy(name, "nothing");
167 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
168 ut_asserteq_str("b6: output: 1 [x] odd_name", buf);
169
170 return 0;
171}
172DM_TEST(dm_test_gpio_copy, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
173
174/* Test that we don't leak memory with GPIOs */
Joe Hershbergere721b882015-05-20 14:27:27 -0500175static int dm_test_gpio_leak(struct unit_test_state *uts)
Simon Glass43241742014-10-04 11:29:51 -0600176{
Joe Hershbergere721b882015-05-20 14:27:27 -0500177 ut_assertok(dm_test_gpio(uts));
178 ut_assertok(dm_test_gpio_anon(uts));
179 ut_assertok(dm_test_gpio_requestf(uts));
180 ut_assertok(dm_leak_check_end(uts));
Simon Glass43241742014-10-04 11:29:51 -0600181
182 return 0;
183}
Simon Glass43241742014-10-04 11:29:51 -0600184DM_TEST(dm_test_gpio_leak, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
Simon Glass3669e0e2015-01-05 20:05:29 -0700185
186/* Test that we can find GPIOs using phandles */
Joe Hershbergere721b882015-05-20 14:27:27 -0500187static int dm_test_gpio_phandles(struct unit_test_state *uts)
Simon Glass3669e0e2015-01-05 20:05:29 -0700188{
189 struct gpio_desc desc, desc_list[8], desc_list2[8];
190 struct udevice *dev, *gpio_a, *gpio_b;
191
192 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
193 ut_asserteq_str("a-test", dev->name);
194
195 ut_assertok(gpio_request_by_name(dev, "test-gpios", 1, &desc, 0));
196 ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio_a));
197 ut_assertok(uclass_get_device(UCLASS_GPIO, 2, &gpio_b));
198 ut_asserteq_str("base-gpios", gpio_a->name);
199 ut_asserteq(true, !!device_active(gpio_a));
200 ut_asserteq_ptr(gpio_a, desc.dev);
201 ut_asserteq(4, desc.offset);
202 /* GPIOF_INPUT is the sandbox GPIO driver default */
203 ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_a, 4, NULL));
204 ut_assertok(dm_gpio_free(dev, &desc));
205
206 ut_asserteq(-ENOENT, gpio_request_by_name(dev, "test-gpios", 3, &desc,
207 0));
208 ut_asserteq_ptr(NULL, desc.dev);
209 ut_asserteq(desc.offset, 0);
210 ut_asserteq(-ENOENT, gpio_request_by_name(dev, "test-gpios", 5, &desc,
211 0));
212
213 /* Last GPIO is ignord as it comes after <0> */
214 ut_asserteq(3, gpio_request_list_by_name(dev, "test-gpios", desc_list,
215 ARRAY_SIZE(desc_list), 0));
216 ut_asserteq(-EBUSY, gpio_request_list_by_name(dev, "test-gpios",
217 desc_list2,
218 ARRAY_SIZE(desc_list2),
219 0));
220 ut_assertok(gpio_free_list(dev, desc_list, 3));
221 ut_asserteq(3, gpio_request_list_by_name(dev, "test-gpios", desc_list,
222 ARRAY_SIZE(desc_list),
223 GPIOD_IS_OUT |
224 GPIOD_IS_OUT_ACTIVE));
225 ut_asserteq_ptr(gpio_a, desc_list[0].dev);
226 ut_asserteq(1, desc_list[0].offset);
227 ut_asserteq_ptr(gpio_a, desc_list[1].dev);
228 ut_asserteq(4, desc_list[1].offset);
229 ut_asserteq_ptr(gpio_b, desc_list[2].dev);
230 ut_asserteq(5, desc_list[2].offset);
231 ut_asserteq(1, dm_gpio_get_value(desc_list));
232 ut_assertok(gpio_free_list(dev, desc_list, 3));
233
234 ut_asserteq(6, gpio_request_list_by_name(dev, "test2-gpios", desc_list,
235 ARRAY_SIZE(desc_list), 0));
236 /* This was set to output previously, so still will be */
237 ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_a, 1, NULL));
238
239 /* Active low should invert the input value */
240 ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_b, 6, NULL));
241 ut_asserteq(1, dm_gpio_get_value(&desc_list[2]));
242
243 ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_b, 7, NULL));
244 ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_b, 8, NULL));
245 ut_asserteq(0, dm_gpio_get_value(&desc_list[4]));
246 ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_b, 9, NULL));
247 ut_asserteq(1, dm_gpio_get_value(&desc_list[5]));
248
249
250 return 0;
251}
252DM_TEST(dm_test_gpio_phandles, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);