blob: 33ae98701f418c63c21509daf2c40deb57011310 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Simon Glass96495d92014-02-26 15:59:24 -07002/*
3 * Copyright (C) 2013 Google, Inc
Simon Glass96495d92014-02-26 15:59:24 -07004 */
5
6#include <common.h>
7#include <fdtdec.h>
8#include <dm.h>
Simon Glassf7ae49f2020-05-10 11:40:05 -06009#include <log.h>
Simon Glass336d4612020-02-03 07:36:16 -070010#include <malloc.h>
Simon Glass29126862020-07-07 13:11:44 -060011#include <acpi/acpi_device.h>
Simon Glass0e1fad42020-07-19 10:15:37 -060012#include <asm/gpio.h>
Jean-Jacques Hiblot88e6a602020-09-11 13:43:35 +053013#include <dm/device-internal.h>
Simon Glass43241742014-10-04 11:29:51 -060014#include <dm/root.h>
Simon Glass96495d92014-02-26 15:59:24 -070015#include <dm/test.h>
16#include <dm/util.h>
Simon Glass0e1fad42020-07-19 10:15:37 -060017#include <test/test.h>
Joe Hershbergere721b882015-05-20 14:27:27 -050018#include <test/ut.h>
Simon Glass96495d92014-02-26 15:59:24 -070019
20/* Test that sandbox GPIOs work correctly */
Joe Hershbergere721b882015-05-20 14:27:27 -050021static int dm_test_gpio(struct unit_test_state *uts)
Simon Glass96495d92014-02-26 15:59:24 -070022{
23 unsigned int offset, gpio;
24 struct dm_gpio_ops *ops;
Heiko Schocher54c5d082014-05-22 12:43:05 +020025 struct udevice *dev;
Heiko Schocher9ba84322020-05-22 11:08:58 +020026 struct gpio_desc *desc;
Simon Glass96495d92014-02-26 15:59:24 -070027 const char *name;
28 int offset_count;
29 char buf[80];
30
31 /*
Patrick Delaunayff526652020-01-13 11:35:14 +010032 * We expect to get 4 banks. One is anonymous (just numbered) and
Simon Glasscaa4daa2020-12-03 16:55:18 -070033 * comes from plat. The other are named a (20 gpios),
Patrick Delaunayff526652020-01-13 11:35:14 +010034 * b (10 gpios) and c (10 gpios) and come from the device tree. See
Simon Glass96495d92014-02-26 15:59:24 -070035 * test/dm/test.dts.
36 */
37 ut_assertok(gpio_lookup_name("b4", &dev, &offset, &gpio));
38 ut_asserteq_str(dev->name, "extra-gpios");
39 ut_asserteq(4, offset);
40 ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 20 + 4, gpio);
41
42 name = gpio_get_bank_info(dev, &offset_count);
43 ut_asserteq_str("b", name);
44 ut_asserteq(10, offset_count);
45
46 /* Get the operations for this device */
47 ops = gpio_get_ops(dev);
Simon Glass4b8f11c2014-10-04 11:29:48 -060048 ut_assert(ops->get_function);
Simon Glass96495d92014-02-26 15:59:24 -070049
50 /* Cannot get a value until it is reserved */
Simon Glass4b8f11c2014-10-04 11:29:48 -060051 ut_asserteq(-EBUSY, gpio_get_value(gpio + 1));
Simon Glass96495d92014-02-26 15:59:24 -070052 /*
53 * Now some tests that use the 'sandbox' back door. All GPIOs
54 * should default to input, include b4 that we are using here.
55 */
Simon Glass4b8f11c2014-10-04 11:29:48 -060056 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
57 ut_asserteq_str("b4: input: 0 [ ]", buf);
Simon Glass96495d92014-02-26 15:59:24 -070058
59 /* Change it to an output */
60 sandbox_gpio_set_direction(dev, offset, 1);
Simon Glass4b8f11c2014-10-04 11:29:48 -060061 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
62 ut_asserteq_str("b4: output: 0 [ ]", buf);
Simon Glass96495d92014-02-26 15:59:24 -070063
64 sandbox_gpio_set_value(dev, offset, 1);
Simon Glass4b8f11c2014-10-04 11:29:48 -060065 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
66 ut_asserteq_str("b4: output: 1 [ ]", buf);
Simon Glass96495d92014-02-26 15:59:24 -070067
Simon Glass4b8f11c2014-10-04 11:29:48 -060068 ut_assertok(gpio_request(gpio, "testing"));
69 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
70 ut_asserteq_str("b4: output: 1 [x] testing", buf);
Simon Glass96495d92014-02-26 15:59:24 -070071
72 /* Change the value a bit */
73 ut_asserteq(1, ops->get_value(dev, offset));
74 ut_assertok(ops->set_value(dev, offset, 0));
75 ut_asserteq(0, ops->get_value(dev, offset));
Simon Glass4b8f11c2014-10-04 11:29:48 -060076 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
77 ut_asserteq_str("b4: output: 0 [x] testing", buf);
Simon Glass96495d92014-02-26 15:59:24 -070078 ut_assertok(ops->set_value(dev, offset, 1));
79 ut_asserteq(1, ops->get_value(dev, offset));
80
Patrick Delaunayff526652020-01-13 11:35:14 +010081 /* Make it an open drain output, and reset it */
82 ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE,
Simon Glassa03a0aa2021-02-04 21:21:59 -070083 sandbox_gpio_get_flags(dev, offset));
Simon Glass13979fc2021-02-04 21:21:55 -070084 ut_assertok(ops->set_flags(dev, offset,
85 GPIOD_IS_OUT | GPIOD_OPEN_DRAIN));
Patrick Delaunayff526652020-01-13 11:35:14 +010086 ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN,
Simon Glassa03a0aa2021-02-04 21:21:59 -070087 sandbox_gpio_get_flags(dev, offset));
Simon Glass13979fc2021-02-04 21:21:55 -070088 ut_assertok(ops->set_flags(dev, offset,
89 GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE));
Patrick Delaunayff526652020-01-13 11:35:14 +010090 ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE,
Simon Glassa03a0aa2021-02-04 21:21:59 -070091 sandbox_gpio_get_flags(dev, offset));
Patrick Delaunayff526652020-01-13 11:35:14 +010092
Simon Glass96495d92014-02-26 15:59:24 -070093 /* Make it an input */
94 ut_assertok(ops->direction_input(dev, offset));
Simon Glass4b8f11c2014-10-04 11:29:48 -060095 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
96 ut_asserteq_str("b4: input: 1 [x] testing", buf);
Simon Glass96495d92014-02-26 15:59:24 -070097 sandbox_gpio_set_value(dev, offset, 0);
98 ut_asserteq(0, sandbox_gpio_get_value(dev, offset));
Simon Glass4b8f11c2014-10-04 11:29:48 -060099 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
100 ut_asserteq_str("b4: input: 0 [x] testing", buf);
Simon Glass96495d92014-02-26 15:59:24 -0700101
Simon Glass4b8f11c2014-10-04 11:29:48 -0600102 ut_assertok(gpio_free(gpio));
103 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
104 ut_asserteq_str("b4: input: 0 [ ]", buf);
Simon Glass96495d92014-02-26 15:59:24 -0700105
106 /* Check the 'a' bank also */
107 ut_assertok(gpio_lookup_name("a15", &dev, &offset, &gpio));
108 ut_asserteq_str(dev->name, "base-gpios");
109 ut_asserteq(15, offset);
110 ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 15, gpio);
111
112 name = gpio_get_bank_info(dev, &offset_count);
113 ut_asserteq_str("a", name);
114 ut_asserteq(20, offset_count);
115
Heiko Schocher9ba84322020-05-22 11:08:58 +0200116 /* add gpio hog tests */
117 ut_assertok(gpio_hog_lookup_name("hog_input_active_low", &desc));
118 ut_asserteq(GPIOD_IS_IN | GPIOD_ACTIVE_LOW, desc->flags);
Philippe Reynes037a56d2020-07-24 15:51:53 +0200119 ut_asserteq(10, desc->offset);
Heiko Schocher9ba84322020-05-22 11:08:58 +0200120 ut_asserteq(1, dm_gpio_get_value(desc));
121 ut_assertok(gpio_hog_lookup_name("hog_input_active_high", &desc));
122 ut_asserteq(GPIOD_IS_IN, desc->flags);
Philippe Reynes037a56d2020-07-24 15:51:53 +0200123 ut_asserteq(11, desc->offset);
Heiko Schocher9ba84322020-05-22 11:08:58 +0200124 ut_asserteq(0, dm_gpio_get_value(desc));
125 ut_assertok(gpio_hog_lookup_name("hog_output_low", &desc));
126 ut_asserteq(GPIOD_IS_OUT, desc->flags);
Philippe Reynes037a56d2020-07-24 15:51:53 +0200127 ut_asserteq(12, desc->offset);
Heiko Schocher9ba84322020-05-22 11:08:58 +0200128 ut_asserteq(0, dm_gpio_get_value(desc));
129 ut_assertok(dm_gpio_set_value(desc, 1));
130 ut_asserteq(1, dm_gpio_get_value(desc));
131 ut_assertok(gpio_hog_lookup_name("hog_output_high", &desc));
132 ut_asserteq(GPIOD_IS_OUT, desc->flags);
Philippe Reynes037a56d2020-07-24 15:51:53 +0200133 ut_asserteq(13, desc->offset);
Heiko Schocher9ba84322020-05-22 11:08:58 +0200134 ut_asserteq(1, dm_gpio_get_value(desc));
135 ut_assertok(dm_gpio_set_value(desc, 0));
136 ut_asserteq(0, dm_gpio_get_value(desc));
137
Heiko Schocher2bd261d2020-05-22 11:08:59 +0200138 /* Check if lookup for labels work */
139 ut_assertok(gpio_lookup_name("hog_input_active_low", &dev, &offset,
140 &gpio));
141 ut_asserteq_str(dev->name, "base-gpios");
Philippe Reynes037a56d2020-07-24 15:51:53 +0200142 ut_asserteq(10, offset);
143 ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 10, gpio);
Heiko Schocher2bd261d2020-05-22 11:08:59 +0200144 ut_assert(gpio_lookup_name("hog_not_exist", &dev, &offset,
145 &gpio));
146
Simon Glass4b8f11c2014-10-04 11:29:48 -0600147 return 0;
148}
Simon Glasse180c2b2020-07-28 19:41:12 -0600149DM_TEST(dm_test_gpio, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
Simon Glass4b8f11c2014-10-04 11:29:48 -0600150
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200151/* Test that GPIO open-drain/open-source emulation works correctly */
152static int dm_test_gpio_opendrain_opensource(struct unit_test_state *uts)
153{
154 struct gpio_desc desc_list[8];
155 struct udevice *dev, *gpio_c;
156 char buf[80];
157
158 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
159 ut_asserteq_str("a-test", dev->name);
160
161 ut_assertok(uclass_get_device(UCLASS_GPIO, 3, &gpio_c));
162 ut_asserteq_str("pinmux-gpios", gpio_c->name);
163
164 ut_asserteq(8, gpio_request_list_by_name(dev, "test3-gpios", desc_list,
165 ARRAY_SIZE(desc_list), 0))
166
167 ut_asserteq(true, !!device_active(gpio_c));
168 ut_asserteq_ptr(gpio_c, desc_list[0].dev);
169 ut_asserteq_ptr(gpio_c, desc_list[1].dev);
170 ut_asserteq_ptr(gpio_c, desc_list[2].dev);
171 ut_asserteq_ptr(gpio_c, desc_list[3].dev);
172 ut_asserteq_ptr(gpio_c, desc_list[4].dev);
173 ut_asserteq_ptr(gpio_c, desc_list[5].dev);
174 ut_asserteq_ptr(gpio_c, desc_list[6].dev);
175 ut_asserteq_ptr(gpio_c, desc_list[7].dev);
176
177 /* GPIO 0 is (GPIO_OUT|GPIO_OPEN_DRAIN) */
178 ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN,
Simon Glassa03a0aa2021-02-04 21:21:59 -0700179 sandbox_gpio_get_flags(gpio_c, 0));
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200180
Simon Glass7e0a96d2021-02-04 21:22:03 -0700181 /* Set it as output high */
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200182 ut_assertok(dm_gpio_set_value(&desc_list[0], 1));
Simon Glass7e0a96d2021-02-04 21:22:03 -0700183 ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN | GPIOD_IS_OUT_ACTIVE,
184 sandbox_gpio_get_flags(gpio_c, 0));
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200185
Simon Glass7e0a96d2021-02-04 21:22:03 -0700186 /* Set it as output low */
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200187 ut_assertok(dm_gpio_set_value(&desc_list[0], 0));
Simon Glass7e0a96d2021-02-04 21:22:03 -0700188 ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN,
189 sandbox_gpio_get_flags(gpio_c, 0));
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200190
191 /* GPIO 1 is (GPIO_OUT|GPIO_OPEN_SOURCE) */
192 ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_SOURCE,
Simon Glassa03a0aa2021-02-04 21:21:59 -0700193 sandbox_gpio_get_flags(gpio_c, 1));
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200194
195 /* Set it as output high, should become output high */
196 ut_assertok(dm_gpio_set_value(&desc_list[1], 1));
197 ut_assertok(gpio_get_status(gpio_c, 1, buf, sizeof(buf)));
198 ut_asserteq_str("c1: output: 1 [x] a-test.test3-gpios1", buf);
199
Simon Glass7e0a96d2021-02-04 21:22:03 -0700200 /* Set it as output low */
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200201 ut_assertok(dm_gpio_set_value(&desc_list[1], 0));
Simon Glass7e0a96d2021-02-04 21:22:03 -0700202 ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_SOURCE,
203 sandbox_gpio_get_flags(gpio_c, 1));
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200204
Simon Glass7e0a96d2021-02-04 21:22:03 -0700205 ut_assertok(gpio_get_status(gpio_c, 1, buf, sizeof(buf)));
206 ut_asserteq_str("c1: output: 0 [x] a-test.test3-gpios1", buf);
207
208 /*
209 * GPIO 6 is (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_DRAIN). Looking at it
210 * directlt from the driver, we get GPIOD_IS_OUT_ACTIVE also, since it
211 * is active low
212 */
213 ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_DRAIN |
214 GPIOD_IS_OUT_ACTIVE,
Simon Glassa03a0aa2021-02-04 21:21:59 -0700215 sandbox_gpio_get_flags(gpio_c, 6));
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200216
217 /* Set it as output high, should become output low */
218 ut_assertok(dm_gpio_set_value(&desc_list[6], 1));
219 ut_assertok(gpio_get_status(gpio_c, 6, buf, sizeof(buf)));
220 ut_asserteq_str("c6: output: 0 [x] a-test.test3-gpios6", buf);
221
Simon Glass7e0a96d2021-02-04 21:22:03 -0700222 /* Set it as output low */
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200223 ut_assertok(dm_gpio_set_value(&desc_list[6], 0));
Simon Glass7e0a96d2021-02-04 21:22:03 -0700224 ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_DRAIN |
225 GPIOD_IS_OUT_ACTIVE,
226 sandbox_gpio_get_flags(gpio_c, 6));
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200227
228 /* GPIO 7 is (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_SOURCE) */
Simon Glass7e0a96d2021-02-04 21:22:03 -0700229 ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_SOURCE |
230 GPIOD_IS_OUT_ACTIVE,
Simon Glassa03a0aa2021-02-04 21:21:59 -0700231 sandbox_gpio_get_flags(gpio_c, 7));
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200232
Simon Glass7e0a96d2021-02-04 21:22:03 -0700233 /* Set it as output high */
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200234 ut_assertok(dm_gpio_set_value(&desc_list[7], 1));
Simon Glass7e0a96d2021-02-04 21:22:03 -0700235 ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_SOURCE,
236 sandbox_gpio_get_flags(gpio_c, 7));
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200237
238 /* Set it as output low, should become output high */
239 ut_assertok(dm_gpio_set_value(&desc_list[7], 0));
240 ut_assertok(gpio_get_status(gpio_c, 7, buf, sizeof(buf)));
241 ut_asserteq_str("c7: output: 1 [x] a-test.test3-gpios7", buf);
242
243 ut_assertok(gpio_free_list(dev, desc_list, 8));
244
245 return 0;
246}
247DM_TEST(dm_test_gpio_opendrain_opensource,
Simon Glasse180c2b2020-07-28 19:41:12 -0600248 UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
Neil Armstrong9bf87e22020-05-05 10:43:18 +0200249
Simon Glass4b8f11c2014-10-04 11:29:48 -0600250/* Test that sandbox anonymous GPIOs work correctly */
Joe Hershbergere721b882015-05-20 14:27:27 -0500251static int dm_test_gpio_anon(struct unit_test_state *uts)
Simon Glass4b8f11c2014-10-04 11:29:48 -0600252{
253 unsigned int offset, gpio;
254 struct udevice *dev;
255 const char *name;
256 int offset_count;
257
Simon Glass96495d92014-02-26 15:59:24 -0700258 /* And the anonymous bank */
259 ut_assertok(gpio_lookup_name("14", &dev, &offset, &gpio));
Walter Lozanoe3e24702020-06-25 01:10:04 -0300260 ut_asserteq_str(dev->name, "sandbox_gpio");
Simon Glass96495d92014-02-26 15:59:24 -0700261 ut_asserteq(14, offset);
262 ut_asserteq(14, gpio);
263
264 name = gpio_get_bank_info(dev, &offset_count);
265 ut_asserteq_ptr(NULL, name);
266 ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT, offset_count);
267
268 return 0;
269}
Simon Glasse180c2b2020-07-28 19:41:12 -0600270DM_TEST(dm_test_gpio_anon, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
Simon Glassd44f5972014-10-04 11:29:49 -0600271
272/* Test that gpio_requestf() works as expected */
Joe Hershbergere721b882015-05-20 14:27:27 -0500273static int dm_test_gpio_requestf(struct unit_test_state *uts)
Simon Glassd44f5972014-10-04 11:29:49 -0600274{
275 unsigned int offset, gpio;
276 struct udevice *dev;
277 char buf[80];
278
279 ut_assertok(gpio_lookup_name("b5", &dev, &offset, &gpio));
280 ut_assertok(gpio_requestf(gpio, "testing %d %s", 1, "hi"));
281 sandbox_gpio_set_direction(dev, offset, 1);
282 sandbox_gpio_set_value(dev, offset, 1);
283 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
284 ut_asserteq_str("b5: output: 1 [x] testing 1 hi", buf);
285
286 return 0;
287}
Simon Glasse180c2b2020-07-28 19:41:12 -0600288DM_TEST(dm_test_gpio_requestf, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
Simon Glass43241742014-10-04 11:29:51 -0600289
290/* Test that gpio_request() copies its string */
Joe Hershbergere721b882015-05-20 14:27:27 -0500291static int dm_test_gpio_copy(struct unit_test_state *uts)
Simon Glass43241742014-10-04 11:29:51 -0600292{
293 unsigned int offset, gpio;
294 struct udevice *dev;
295 char buf[80], name[10];
296
297 ut_assertok(gpio_lookup_name("b6", &dev, &offset, &gpio));
298 strcpy(name, "odd_name");
299 ut_assertok(gpio_request(gpio, name));
300 sandbox_gpio_set_direction(dev, offset, 1);
301 sandbox_gpio_set_value(dev, offset, 1);
302 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
303 ut_asserteq_str("b6: output: 1 [x] odd_name", buf);
304 strcpy(name, "nothing");
305 ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
306 ut_asserteq_str("b6: output: 1 [x] odd_name", buf);
307
308 return 0;
309}
Simon Glasse180c2b2020-07-28 19:41:12 -0600310DM_TEST(dm_test_gpio_copy, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
Simon Glass43241742014-10-04 11:29:51 -0600311
312/* Test that we don't leak memory with GPIOs */
Joe Hershbergere721b882015-05-20 14:27:27 -0500313static int dm_test_gpio_leak(struct unit_test_state *uts)
Simon Glass43241742014-10-04 11:29:51 -0600314{
Joe Hershbergere721b882015-05-20 14:27:27 -0500315 ut_assertok(dm_test_gpio(uts));
316 ut_assertok(dm_test_gpio_anon(uts));
317 ut_assertok(dm_test_gpio_requestf(uts));
318 ut_assertok(dm_leak_check_end(uts));
Simon Glass43241742014-10-04 11:29:51 -0600319
320 return 0;
321}
Simon Glasse180c2b2020-07-28 19:41:12 -0600322DM_TEST(dm_test_gpio_leak, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
Simon Glass3669e0e2015-01-05 20:05:29 -0700323
324/* Test that we can find GPIOs using phandles */
Joe Hershbergere721b882015-05-20 14:27:27 -0500325static int dm_test_gpio_phandles(struct unit_test_state *uts)
Simon Glass3669e0e2015-01-05 20:05:29 -0700326{
327 struct gpio_desc desc, desc_list[8], desc_list2[8];
328 struct udevice *dev, *gpio_a, *gpio_b;
329
330 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
331 ut_asserteq_str("a-test", dev->name);
332
333 ut_assertok(gpio_request_by_name(dev, "test-gpios", 1, &desc, 0));
334 ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio_a));
335 ut_assertok(uclass_get_device(UCLASS_GPIO, 2, &gpio_b));
336 ut_asserteq_str("base-gpios", gpio_a->name);
337 ut_asserteq(true, !!device_active(gpio_a));
338 ut_asserteq_ptr(gpio_a, desc.dev);
339 ut_asserteq(4, desc.offset);
340 /* GPIOF_INPUT is the sandbox GPIO driver default */
341 ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_a, 4, NULL));
342 ut_assertok(dm_gpio_free(dev, &desc));
343
344 ut_asserteq(-ENOENT, gpio_request_by_name(dev, "test-gpios", 3, &desc,
345 0));
346 ut_asserteq_ptr(NULL, desc.dev);
347 ut_asserteq(desc.offset, 0);
348 ut_asserteq(-ENOENT, gpio_request_by_name(dev, "test-gpios", 5, &desc,
349 0));
350
351 /* Last GPIO is ignord as it comes after <0> */
352 ut_asserteq(3, gpio_request_list_by_name(dev, "test-gpios", desc_list,
353 ARRAY_SIZE(desc_list), 0));
354 ut_asserteq(-EBUSY, gpio_request_list_by_name(dev, "test-gpios",
355 desc_list2,
356 ARRAY_SIZE(desc_list2),
357 0));
Patrick Delaunayff526652020-01-13 11:35:14 +0100358 ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_a, 4, NULL));
Simon Glass3669e0e2015-01-05 20:05:29 -0700359 ut_assertok(gpio_free_list(dev, desc_list, 3));
Patrick Delaunayff526652020-01-13 11:35:14 +0100360 ut_asserteq(GPIOF_UNUSED, gpio_get_function(gpio_a, 4, NULL));
Simon Glass3669e0e2015-01-05 20:05:29 -0700361 ut_asserteq(3, gpio_request_list_by_name(dev, "test-gpios", desc_list,
362 ARRAY_SIZE(desc_list),
363 GPIOD_IS_OUT |
364 GPIOD_IS_OUT_ACTIVE));
Patrick Delaunayff526652020-01-13 11:35:14 +0100365 ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_a, 4, NULL));
Simon Glass3669e0e2015-01-05 20:05:29 -0700366 ut_asserteq_ptr(gpio_a, desc_list[0].dev);
367 ut_asserteq(1, desc_list[0].offset);
368 ut_asserteq_ptr(gpio_a, desc_list[1].dev);
369 ut_asserteq(4, desc_list[1].offset);
370 ut_asserteq_ptr(gpio_b, desc_list[2].dev);
371 ut_asserteq(5, desc_list[2].offset);
372 ut_asserteq(1, dm_gpio_get_value(desc_list));
373 ut_assertok(gpio_free_list(dev, desc_list, 3));
374
Patrick Delaunayff526652020-01-13 11:35:14 +0100375 ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE,
Simon Glassa03a0aa2021-02-04 21:21:59 -0700376 sandbox_gpio_get_flags(gpio_a, 1));
Simon Glass3669e0e2015-01-05 20:05:29 -0700377 ut_asserteq(6, gpio_request_list_by_name(dev, "test2-gpios", desc_list,
378 ARRAY_SIZE(desc_list), 0));
Patrick Delaunayff526652020-01-13 11:35:14 +0100379
380 /* This was set to output previously but flags resetted to 0 = INPUT */
Simon Glassa03a0aa2021-02-04 21:21:59 -0700381 ut_asserteq(0, sandbox_gpio_get_flags(gpio_a, 1));
Patrick Delaunayff526652020-01-13 11:35:14 +0100382 ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_a, 1, NULL));
Simon Glass3669e0e2015-01-05 20:05:29 -0700383
384 /* Active low should invert the input value */
385 ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_b, 6, NULL));
386 ut_asserteq(1, dm_gpio_get_value(&desc_list[2]));
387
388 ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_b, 7, NULL));
389 ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_b, 8, NULL));
390 ut_asserteq(0, dm_gpio_get_value(&desc_list[4]));
391 ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_b, 9, NULL));
392 ut_asserteq(1, dm_gpio_get_value(&desc_list[5]));
393
Simon Glass3669e0e2015-01-05 20:05:29 -0700394 return 0;
395}
Simon Glasse180c2b2020-07-28 19:41:12 -0600396DM_TEST(dm_test_gpio_phandles, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
Patrick Delaunayff526652020-01-13 11:35:14 +0100397
398/* Check the gpio pin configuration get from device tree information */
399static int dm_test_gpio_get_dir_flags(struct unit_test_state *uts)
400{
401 struct gpio_desc desc_list[6];
402 struct udevice *dev;
403 ulong flags;
404
405 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
406
407 ut_asserteq(6, gpio_request_list_by_name(dev, "test3-gpios", desc_list,
408 ARRAY_SIZE(desc_list), 0));
409
Simon Glassc0c1e622021-02-04 21:21:57 -0700410 ut_assertok(dm_gpio_get_flags(&desc_list[0], &flags));
Patrick Delaunayff526652020-01-13 11:35:14 +0100411 ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN, flags);
412
Simon Glassc0c1e622021-02-04 21:21:57 -0700413 ut_assertok(dm_gpio_get_flags(&desc_list[1], &flags));
Patrick Delaunayff526652020-01-13 11:35:14 +0100414 ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_SOURCE, flags);
415
Simon Glassc0c1e622021-02-04 21:21:57 -0700416 ut_assertok(dm_gpio_get_flags(&desc_list[2], &flags));
Patrick Delaunayff526652020-01-13 11:35:14 +0100417 ut_asserteq(GPIOD_IS_OUT, flags);
418
Simon Glassc0c1e622021-02-04 21:21:57 -0700419 ut_assertok(dm_gpio_get_flags(&desc_list[3], &flags));
Patrick Delaunayff526652020-01-13 11:35:14 +0100420 ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_UP, flags);
421
Simon Glassc0c1e622021-02-04 21:21:57 -0700422 ut_assertok(dm_gpio_get_flags(&desc_list[4], &flags));
Patrick Delaunayff526652020-01-13 11:35:14 +0100423 ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_DOWN, flags);
424
Simon Glassc0c1e622021-02-04 21:21:57 -0700425 ut_assertok(dm_gpio_get_flags(&desc_list[5], &flags));
Patrick Delaunayff526652020-01-13 11:35:14 +0100426 ut_asserteq(GPIOD_IS_IN, flags);
427
428 ut_assertok(gpio_free_list(dev, desc_list, 6));
429
430 return 0;
431}
Simon Glasse180c2b2020-07-28 19:41:12 -0600432DM_TEST(dm_test_gpio_get_dir_flags, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
Simon Glass29126862020-07-07 13:11:44 -0600433
434/* Test of gpio_get_acpi() */
435static int dm_test_gpio_get_acpi(struct unit_test_state *uts)
436{
437 struct acpi_gpio agpio;
438 struct udevice *dev;
439 struct gpio_desc desc;
440
441 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
442 ut_asserteq_str("a-test", dev->name);
443 ut_assertok(gpio_request_by_name(dev, "test-gpios", 1, &desc, 0));
444
445 /* See sb_gpio_get_acpi() */
446 ut_assertok(gpio_get_acpi(&desc, &agpio));
447 ut_asserteq(1, agpio.pin_count);
448 ut_asserteq(4, agpio.pins[0]);
449 ut_asserteq(ACPI_GPIO_TYPE_IO, agpio.type);
450 ut_asserteq(ACPI_GPIO_PULL_UP, agpio.pull);
451 ut_asserteq_str("\\_SB.PINC", agpio.resource);
452 ut_asserteq(0, agpio.interrupt_debounce_timeout);
453 ut_asserteq(0, agpio.irq.pin);
454 ut_asserteq(1234, agpio.output_drive_strength);
455 ut_asserteq(true, agpio.io_shared);
456 ut_asserteq(ACPI_GPIO_IO_RESTRICT_INPUT, agpio.io_restrict);
457 ut_asserteq(ACPI_GPIO_ACTIVE_HIGH, agpio.polarity);
458
459 return 0;
460}
Simon Glasse180c2b2020-07-28 19:41:12 -0600461DM_TEST(dm_test_gpio_get_acpi, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
Simon Glass29126862020-07-07 13:11:44 -0600462
463/* Test of gpio_get_acpi() with an interrupt GPIO */
464static int dm_test_gpio_get_acpi_irq(struct unit_test_state *uts)
465{
466 struct acpi_gpio agpio;
467 struct udevice *dev;
468 struct gpio_desc desc;
469
470 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
471 ut_asserteq_str("a-test", dev->name);
472 ut_assertok(gpio_request_by_name(dev, "test2-gpios", 2, &desc, 0));
473
474 /* See sb_gpio_get_acpi() */
475 ut_assertok(gpio_get_acpi(&desc, &agpio));
476 ut_asserteq(1, agpio.pin_count);
477 ut_asserteq(6, agpio.pins[0]);
478 ut_asserteq(ACPI_GPIO_TYPE_INTERRUPT, agpio.type);
479 ut_asserteq(ACPI_GPIO_PULL_DOWN, agpio.pull);
480 ut_asserteq_str("\\_SB.PINC", agpio.resource);
481 ut_asserteq(4321, agpio.interrupt_debounce_timeout);
482 ut_asserteq(6, agpio.irq.pin);
483 ut_asserteq(ACPI_IRQ_ACTIVE_BOTH, agpio.irq.polarity);
484 ut_asserteq(ACPI_IRQ_SHARED, agpio.irq.shared);
485 ut_asserteq(true, agpio.irq.wake);
486 ut_asserteq(0, agpio.output_drive_strength);
487 ut_asserteq(false, agpio.io_shared);
488 ut_asserteq(0, agpio.io_restrict);
489 ut_asserteq(ACPI_GPIO_ACTIVE_LOW, agpio.polarity);
490
491 return 0;
492}
Simon Glasse180c2b2020-07-28 19:41:12 -0600493DM_TEST(dm_test_gpio_get_acpi_irq, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
Jean-Jacques Hiblot88e6a602020-09-11 13:43:35 +0530494
495/* Test that we can get/release GPIOs using managed API */
496static int dm_test_gpio_devm(struct unit_test_state *uts)
497{
498 static const u32 flags = GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE;
499 struct gpio_desc *desc1, *desc2, *desc3, *desc_err;
500 struct udevice *dev;
501 struct udevice *dev2;
502
503 ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "a-test",
504 &dev));
505 ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "another-test",
506 &dev2));
507
508 /* Get 3 GPIOs from 'a-test' dev */
509 desc1 = devm_gpiod_get_index(dev, "test4", 0, flags);
510 ut_assert(!IS_ERR(desc1));
511 desc2 = devm_gpiod_get_index(dev, "test4", 1, flags);
512 ut_assert(!IS_ERR(desc2));
513 desc3 = devm_gpiod_get_index_optional(dev, "test5", 0, flags);
514 ut_assert(!IS_ERR(desc3));
515 ut_assert(desc3);
516
517 /*
518 * Try get the same 3 GPIOs from 'a-test' and 'another-test' devices.
519 * check that it fails
520 */
521 desc_err = devm_gpiod_get_index(dev, "test4", 0, flags);
522 ut_asserteq(-EBUSY, PTR_ERR(desc_err));
523 desc_err = devm_gpiod_get_index(dev2, "test4", 0, flags);
524 ut_asserteq(-EBUSY, PTR_ERR(desc_err));
525 desc_err = devm_gpiod_get_index(dev, "test4", 1, flags);
526 ut_asserteq(-EBUSY, PTR_ERR(desc_err));
527 desc_err = devm_gpiod_get_index(dev2, "test4", 1, flags);
528 ut_asserteq(-EBUSY, PTR_ERR(desc_err));
529 desc_err = devm_gpiod_get_index_optional(dev, "test5", 0, flags);
530 ut_asserteq_ptr(NULL, desc_err);
531 desc_err = devm_gpiod_get_index_optional(dev2, "test5", 0, flags);
532 ut_asserteq_ptr(NULL, desc_err);
533
534 /* Try get GPIOs outside of the list */
535 desc_err = devm_gpiod_get_index(dev, "test4", 2, flags);
536 ut_assert(IS_ERR(desc_err));
537 desc_err = devm_gpiod_get_index_optional(dev, "test5", 1, flags);
538 ut_asserteq_ptr(NULL, desc_err);
539
540 /* Manipulate the GPIOs */
541 ut_assertok(dm_gpio_set_value(desc1, 1));
542 ut_asserteq(1, dm_gpio_get_value(desc1));
543 ut_assertok(dm_gpio_set_value(desc1, 0));
544 ut_asserteq(0, dm_gpio_get_value(desc1));
545
546 ut_assertok(dm_gpio_set_value(desc2, 1));
547 ut_asserteq(1, dm_gpio_get_value(desc2));
548 ut_assertok(dm_gpio_set_value(desc2, 0));
549 ut_asserteq(0, dm_gpio_get_value(desc2));
550
551 ut_assertok(dm_gpio_set_value(desc3, 1));
552 ut_asserteq(1, dm_gpio_get_value(desc3));
553 ut_assertok(dm_gpio_set_value(desc3, 0));
554 ut_asserteq(0, dm_gpio_get_value(desc3));
555
556 /* Check that the GPIO cannot be owned by more than one device */
557 desc_err = devm_gpiod_get_index(dev2, "test4", 0, flags);
558 ut_asserteq(-EBUSY, PTR_ERR(desc_err));
559 desc_err = devm_gpiod_get_index(dev2, "test4", 1, flags);
560 ut_asserteq(-EBUSY, PTR_ERR(desc_err));
561 desc_err = devm_gpiod_get_index_optional(dev2, "test5", 0, flags);
562 ut_asserteq_ptr(NULL, desc_err);
563
564 /*
565 * Release one GPIO and check that we can get it back using
566 * 'another-test' and then 'a-test'
567 */
568 devm_gpiod_put(dev, desc2);
569 desc2 = devm_gpiod_get_index(dev2, "test4", 1, flags);
570 ut_assert(!IS_ERR(desc2));
571
572 devm_gpiod_put(dev2, desc2);
573 desc2 = devm_gpiod_get_index(dev, "test4", 1, flags);
574 ut_assert(!IS_ERR(desc2));
575
576 /* Release one GPIO before removing the 'a-test' dev. */
577 devm_gpiod_put(dev, desc2);
578 device_remove(dev, DM_REMOVE_NORMAL);
579
580 /* All the GPIOs must have been freed. We should be able to claim
581 * them with the 'another-test' device.
582 */
583 desc1 = devm_gpiod_get_index(dev2, "test4", 0, flags);
584 ut_assert(!IS_ERR(desc1));
585 desc2 = devm_gpiod_get_index(dev2, "test4", 1, flags);
586 ut_assert(!IS_ERR(desc2));
587 desc3 = devm_gpiod_get_index_optional(dev2, "test5", 0, flags);
588 ut_assert(!IS_ERR(desc3));
589 ut_assert(desc3);
590
591 device_remove(dev2, DM_REMOVE_NORMAL);
592 return 0;
593}
594DM_TEST(dm_test_gpio_devm, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
Simon Glass7e0a96d2021-02-04 21:22:03 -0700595
596static int dm_test_clrset_flags(struct unit_test_state *uts)
597{
598 struct gpio_desc desc;
599 struct udevice *dev;
600 ulong flags;
601
602 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
603 ut_asserteq_str("a-test", dev->name);
604 ut_assertok(gpio_request_by_name(dev, "test-gpios", 1, &desc, 0));
605
606 ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_MASK_DIR, GPIOD_IS_OUT));
607 ut_assertok(dm_gpio_get_flags(&desc, &flags));
608 ut_asserteq(GPIOD_IS_OUT, flags);
609 ut_asserteq(GPIOD_IS_OUT, desc.flags);
610 ut_asserteq(0, sandbox_gpio_get_value(desc.dev, desc.offset));
611
612 ut_assertok(dm_gpio_clrset_flags(&desc, 0, GPIOD_IS_OUT_ACTIVE));
613 ut_assertok(dm_gpio_get_flags(&desc, &flags));
614 ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE, flags);
615 ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE, desc.flags);
616 ut_asserteq(1, sandbox_gpio_get_value(desc.dev, desc.offset));
617 ut_asserteq(1, dm_gpio_get_value(&desc));
618
619 ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_MASK_DIR, GPIOD_IS_IN));
620 ut_assertok(dm_gpio_get_flags(&desc, &flags));
621 ut_asserteq(GPIOD_IS_IN, flags & GPIOD_MASK_DIR);
622 ut_asserteq(GPIOD_IS_IN, desc.flags & GPIOD_MASK_DIR);
623
624 ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_MASK_PULL,
625 GPIOD_PULL_UP));
626 ut_assertok(dm_gpio_get_flags(&desc, &flags));
627 ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_UP, flags);
628 ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_UP, desc.flags);
629
630 /* Check we cannot set both PULL_UP and PULL_DOWN */
631 ut_asserteq(-EINVAL, dm_gpio_clrset_flags(&desc, 0, GPIOD_PULL_DOWN));
632
633 return 0;
634}
635DM_TEST(dm_test_clrset_flags, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
636
637/* Check that an active-low GPIO works as expected */
638static int dm_test_clrset_flags_invert(struct unit_test_state *uts)
639{
640 struct gpio_desc desc;
641 struct udevice *dev;
642 ulong flags;
643
644 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
645 ut_asserteq_str("a-test", dev->name);
646 ut_assertok(gpio_request_by_name(dev, "test-gpios", 1, &desc,
647 GPIOD_IS_OUT | GPIOD_ACTIVE_LOW));
648
649 /*
650 * From this size we see it as 0 (active low), but the sandbox driver
651 * sees the pin value high
652 */
653 ut_asserteq(0, dm_gpio_get_value(&desc));
654 ut_asserteq(1, sandbox_gpio_get_value(desc.dev, desc.offset));
655
656 ut_assertok(dm_gpio_set_value(&desc, 1));
657 ut_asserteq(1, dm_gpio_get_value(&desc));
658 ut_asserteq(0, sandbox_gpio_get_value(desc.dev, desc.offset));
659
660 /* Do the same with dm_gpio_clrset_flags() */
661 ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_IS_OUT_ACTIVE, 0));
662 ut_asserteq(0, dm_gpio_get_value(&desc));
663 ut_asserteq(1, sandbox_gpio_get_value(desc.dev, desc.offset));
664
665 ut_assertok(dm_gpio_clrset_flags(&desc, 0, GPIOD_IS_OUT_ACTIVE));
666 ut_asserteq(1, dm_gpio_get_value(&desc));
667 ut_asserteq(0, sandbox_gpio_get_value(desc.dev, desc.offset));
668
669 ut_assertok(dm_gpio_get_flags(&desc, &flags));
670 ut_asserteq(GPIOD_IS_OUT | GPIOD_ACTIVE_LOW | GPIOD_IS_OUT_ACTIVE,
671 flags);
672 ut_asserteq(GPIOD_IS_OUT | GPIOD_ACTIVE_LOW | GPIOD_IS_OUT_ACTIVE,
673 desc.flags);
674
675 ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_IS_OUT_ACTIVE, 0));
676 ut_assertok(dm_gpio_get_flags(&desc, &flags));
677 ut_asserteq(GPIOD_IS_OUT | GPIOD_ACTIVE_LOW, flags);
678 ut_asserteq(GPIOD_IS_OUT | GPIOD_ACTIVE_LOW, desc.flags);
679
680 return 0;
681}
682DM_TEST(dm_test_clrset_flags_invert, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
Simon Glass8a45b222021-02-04 21:22:09 -0700683
684static int set_gpios(struct unit_test_state *uts, struct gpio_desc *desc,
685 int count, uint value)
686{
687 int i;
688
689 for (i = 0; i < count; i++) {
690 const uint mask = 1 << i;
691
692 ut_assertok(sandbox_gpio_set_value(desc[i].dev, desc[i].offset,
693 value & mask));
694 }
695
696 return 0;
697}
698
699/* Check that an active-low GPIO works as expected */
700static int dm_test_gpio_get_values_as_int(struct unit_test_state *uts)
701{
702 const int gpio_count = 3;
703 struct gpio_desc desc[gpio_count];
704 struct udevice *dev;
705
706 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
707 ut_asserteq_str("a-test", dev->name);
708
709 ut_asserteq(3, gpio_request_list_by_name(dev, "test-gpios", desc,
710 gpio_count, GPIOD_IS_IN));
711 ut_assertok(set_gpios(uts, desc, gpio_count, 0));
712 ut_asserteq(0, dm_gpio_get_values_as_int(desc, gpio_count));
713
714 ut_assertok(set_gpios(uts, desc, gpio_count, 5));
715 ut_asserteq(5, dm_gpio_get_values_as_int(desc, gpio_count));
716
717 ut_assertok(set_gpios(uts, desc, gpio_count, 7));
718 ut_asserteq(7, dm_gpio_get_values_as_int(desc, gpio_count));
719
720 return 0;
721}
722DM_TEST(dm_test_gpio_get_values_as_int,
723 UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
724
725/* Check that an active-low GPIO works as expected */
726static int dm_test_gpio_get_values_as_int_base3(struct unit_test_state *uts)
727{
728 const int gpio_count = 3;
729 struct gpio_desc desc[gpio_count];
730 struct udevice *dev;
731
732 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
733 ut_asserteq_str("a-test", dev->name);
734
735 ut_asserteq(3, gpio_request_list_by_name(dev, "test-gpios", desc,
736 gpio_count, GPIOD_IS_IN));
737
738 /*
739 * First test the sandbox GPIO driver works as expected. The external
740 * pull resistor should be stronger than the internal one.
741 */
742 sandbox_gpio_set_flags(desc[0].dev, desc[0].offset,
743 GPIOD_IS_IN | GPIOD_EXT_PULL_UP | GPIOD_PULL_UP);
744 ut_asserteq(1, dm_gpio_get_value(desc));
745
746 sandbox_gpio_set_flags(desc[0].dev, desc[0].offset, GPIOD_IS_IN |
747 GPIOD_EXT_PULL_DOWN | GPIOD_PULL_UP);
748 ut_asserteq(0, dm_gpio_get_value(desc));
749
750 sandbox_gpio_set_flags(desc[0].dev, desc[0].offset,
751 GPIOD_IS_IN | GPIOD_PULL_UP);
752 ut_asserteq(1, dm_gpio_get_value(desc));
753
754 sandbox_gpio_set_flags(desc[0].dev, desc[0].offset, GPIOD_PULL_DOWN);
755 ut_asserteq(0, dm_gpio_get_value(desc));
756
757 /*
758 * Set up pins: pull-up (1), pull-down (0) and floating (2). This should
759 * result in digits 2 0 1, i.e. 2 * 9 + 1 * 3 = 19
760 */
761 sandbox_gpio_set_flags(desc[0].dev, desc[0].offset, GPIOD_EXT_PULL_UP);
762 sandbox_gpio_set_flags(desc[1].dev, desc[1].offset,
763 GPIOD_EXT_PULL_DOWN);
764 sandbox_gpio_set_flags(desc[2].dev, desc[2].offset, 0);
765 ut_asserteq(19, dm_gpio_get_values_as_int_base3(desc, gpio_count));
766
767 /*
768 * Set up pins: floating (2), pull-up (1) and pull-down (0). This should
769 * result in digits 0 1 2, i.e. 1 * 3 + 2 = 5
770 */
771 sandbox_gpio_set_flags(desc[0].dev, desc[0].offset, 0);
772 sandbox_gpio_set_flags(desc[1].dev, desc[1].offset, GPIOD_EXT_PULL_UP);
773 sandbox_gpio_set_flags(desc[2].dev, desc[2].offset,
774 GPIOD_EXT_PULL_DOWN);
775 ut_asserteq(5, dm_gpio_get_values_as_int_base3(desc, gpio_count));
776
777 return 0;
778}
779DM_TEST(dm_test_gpio_get_values_as_int_base3,
780 UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);