[u-boot.git] / test / dm / gpio.c

/*
 * Copyright (C) 2013 Google, Inc
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <fdtdec.h>
#include <dm.h>
#include <dm/root.h>
#include <dm/ut.h>
#include <dm/test.h>
#include <dm/util.h>
#include <asm/gpio.h>

DECLARE_GLOBAL_DATA_PTR;

/* Test that sandbox GPIOs work correctly */
static int dm_test_gpio(struct dm_test_state *dms)
{
	unsigned int offset, gpio;
	struct dm_gpio_ops *ops;
	struct udevice *dev;
	const char *name;
	int offset_count;
	char buf[80];

	/*
	 * We expect to get 3 banks. One is anonymous (just numbered) and
	 * comes from platdata. The other two are named a (20 gpios)
	 * and b (10 gpios) and come from the device tree. See
	 * test/dm/test.dts.
	 */
	ut_assertok(gpio_lookup_name("b4", &dev, &offset, &gpio));
	ut_asserteq_str(dev->name, "extra-gpios");
	ut_asserteq(4, offset);
	ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 20 + 4, gpio);

	name = gpio_get_bank_info(dev, &offset_count);
	ut_asserteq_str("b", name);
	ut_asserteq(10, offset_count);

	/* Get the operations for this device */
	ops = gpio_get_ops(dev);
	ut_assert(ops->get_function);

	/* Cannot get a value until it is reserved */
	ut_asserteq(-EBUSY, gpio_get_value(gpio + 1));
	/*
	 * Now some tests that use the 'sandbox' back door. All GPIOs
	 * should default to input, include b4 that we are using here.
	 */
	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
	ut_asserteq_str("b4: input: 0 [ ]", buf);

	/* Change it to an output */
	sandbox_gpio_set_direction(dev, offset, 1);
	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
	ut_asserteq_str("b4: output: 0 [ ]", buf);

	sandbox_gpio_set_value(dev, offset, 1);
	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
	ut_asserteq_str("b4: output: 1 [ ]", buf);

	ut_assertok(gpio_request(gpio, "testing"));
	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
	ut_asserteq_str("b4: output: 1 [x] testing", buf);

	/* Change the value a bit */
	ut_asserteq(1, ops->get_value(dev, offset));
	ut_assertok(ops->set_value(dev, offset, 0));
	ut_asserteq(0, ops->get_value(dev, offset));
	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
	ut_asserteq_str("b4: output: 0 [x] testing", buf);
	ut_assertok(ops->set_value(dev, offset, 1));
	ut_asserteq(1, ops->get_value(dev, offset));

	/* Make it an input */
	ut_assertok(ops->direction_input(dev, offset));
	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
	ut_asserteq_str("b4: input: 1 [x] testing", buf);
	sandbox_gpio_set_value(dev, offset, 0);
	ut_asserteq(0, sandbox_gpio_get_value(dev, offset));
	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
	ut_asserteq_str("b4: input: 0 [x] testing", buf);

	ut_assertok(gpio_free(gpio));
	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
	ut_asserteq_str("b4: input: 0 [ ]", buf);

	/* Check the 'a' bank also */
	ut_assertok(gpio_lookup_name("a15", &dev, &offset, &gpio));
	ut_asserteq_str(dev->name, "base-gpios");
	ut_asserteq(15, offset);
	ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 15, gpio);

	name = gpio_get_bank_info(dev, &offset_count);
	ut_asserteq_str("a", name);
	ut_asserteq(20, offset_count);

	return 0;
}
DM_TEST(dm_test_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);

/* Test that sandbox anonymous GPIOs work correctly */
static int dm_test_gpio_anon(struct dm_test_state *dms)
{
	unsigned int offset, gpio;
	struct udevice *dev;
	const char *name;
	int offset_count;

	/* And the anonymous bank */
	ut_assertok(gpio_lookup_name("14", &dev, &offset, &gpio));
	ut_asserteq_str(dev->name, "gpio_sandbox");
	ut_asserteq(14, offset);
	ut_asserteq(14, gpio);

	name = gpio_get_bank_info(dev, &offset_count);
	ut_asserteq_ptr(NULL, name);
	ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT, offset_count);

	return 0;
}
DM_TEST(dm_test_gpio_anon, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);

/* Test that gpio_requestf() works as expected */
static int dm_test_gpio_requestf(struct dm_test_state *dms)
{
	unsigned int offset, gpio;
	struct udevice *dev;
	char buf[80];

	ut_assertok(gpio_lookup_name("b5", &dev, &offset, &gpio));
	ut_assertok(gpio_requestf(gpio, "testing %d %s", 1, "hi"));
	sandbox_gpio_set_direction(dev, offset, 1);
	sandbox_gpio_set_value(dev, offset, 1);
	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
	ut_asserteq_str("b5: output: 1 [x] testing 1 hi", buf);

	return 0;
}
DM_TEST(dm_test_gpio_requestf, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);

/* Test that gpio_request() copies its string */
static int dm_test_gpio_copy(struct dm_test_state *dms)
{
	unsigned int offset, gpio;
	struct udevice *dev;
	char buf[80], name[10];

	ut_assertok(gpio_lookup_name("b6", &dev, &offset, &gpio));
	strcpy(name, "odd_name");
	ut_assertok(gpio_request(gpio, name));
	sandbox_gpio_set_direction(dev, offset, 1);
	sandbox_gpio_set_value(dev, offset, 1);
	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
	ut_asserteq_str("b6: output: 1 [x] odd_name", buf);
	strcpy(name, "nothing");
	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
	ut_asserteq_str("b6: output: 1 [x] odd_name", buf);

	return 0;
}
DM_TEST(dm_test_gpio_copy, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);

/* Test that we don't leak memory with GPIOs */
static int dm_test_gpio_leak(struct dm_test_state *dms)
{
	ut_assertok(dm_test_gpio(dms));
	ut_assertok(dm_test_gpio_anon(dms));
	ut_assertok(dm_test_gpio_requestf(dms));
	ut_assertok(dm_leak_check_end(dms));

	return 0;
}
DM_TEST(dm_test_gpio_leak, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);

/* Test that we can find GPIOs using phandles */
static int dm_test_gpio_phandles(struct dm_test_state *dms)
{
	struct gpio_desc desc, desc_list[8], desc_list2[8];
	struct udevice *dev, *gpio_a, *gpio_b;

	ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
	ut_asserteq_str("a-test", dev->name);

	ut_assertok(gpio_request_by_name(dev, "test-gpios", 1, &desc, 0));
	ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio_a));
	ut_assertok(uclass_get_device(UCLASS_GPIO, 2, &gpio_b));
	ut_asserteq_str("base-gpios", gpio_a->name);
	ut_asserteq(true, !!device_active(gpio_a));
	ut_asserteq_ptr(gpio_a, desc.dev);
	ut_asserteq(4, desc.offset);
	/* GPIOF_INPUT is the sandbox GPIO driver default */
	ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_a, 4, NULL));
	ut_assertok(dm_gpio_free(dev, &desc));

	ut_asserteq(-ENOENT, gpio_request_by_name(dev, "test-gpios", 3, &desc,
						  0));
	ut_asserteq_ptr(NULL, desc.dev);
	ut_asserteq(desc.offset, 0);
	ut_asserteq(-ENOENT, gpio_request_by_name(dev, "test-gpios", 5, &desc,
						  0));

	/* Last GPIO is ignord as it comes after <0> */
	ut_asserteq(3, gpio_request_list_by_name(dev, "test-gpios", desc_list,
						 ARRAY_SIZE(desc_list), 0));
	ut_asserteq(-EBUSY, gpio_request_list_by_name(dev, "test-gpios",
						      desc_list2,
						      ARRAY_SIZE(desc_list2),
						      0));
	ut_assertok(gpio_free_list(dev, desc_list, 3));
	ut_asserteq(3, gpio_request_list_by_name(dev,  "test-gpios", desc_list,
						 ARRAY_SIZE(desc_list),
						 GPIOD_IS_OUT |
						 GPIOD_IS_OUT_ACTIVE));
	ut_asserteq_ptr(gpio_a, desc_list[0].dev);
	ut_asserteq(1, desc_list[0].offset);
	ut_asserteq_ptr(gpio_a, desc_list[1].dev);
	ut_asserteq(4, desc_list[1].offset);
	ut_asserteq_ptr(gpio_b, desc_list[2].dev);
	ut_asserteq(5, desc_list[2].offset);
	ut_asserteq(1, dm_gpio_get_value(desc_list));
	ut_assertok(gpio_free_list(dev, desc_list, 3));

	ut_asserteq(6, gpio_request_list_by_name(dev, "test2-gpios", desc_list,
						 ARRAY_SIZE(desc_list), 0));
	/* This was set to output previously, so still will be */
	ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_a, 1, NULL));

	/* Active low should invert the input value */
	ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_b, 6, NULL));
	ut_asserteq(1, dm_gpio_get_value(&desc_list[2]));

	ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_b, 7, NULL));
	ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_b, 8, NULL));
	ut_asserteq(0, dm_gpio_get_value(&desc_list[4]));
	ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_b, 9, NULL));
	ut_asserteq(1, dm_gpio_get_value(&desc_list[5]));


	return 0;
}
DM_TEST(dm_test_gpio_phandles, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
Commit	Line	Data
96495d90 SG	1	/*
	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>
4324174d	10	#include <dm/root.h>
96495d90 SG	11	#include <dm/ut.h>
	12	#include <dm/test.h>
	13	#include <dm/util.h>
	14	#include <asm/gpio.h>
	15
4324174d SG	16	DECLARE_GLOBAL_DATA_PTR;
4324174d SG	17
96495d90 SG	18	/* Test that sandbox GPIOs work correctly */
	19	static int dm_test_gpio(struct dm_test_state *dms)
	20	{
	21	unsigned int offset, gpio;
	22	struct dm_gpio_ops *ops;
54c5d08a	23	struct udevice *dev;
96495d90 SG	24	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);
4b8f11c2	45	ut_assert(ops->get_function);
96495d90 SG	46
96495d90 SG	47	/* Cannot get a value until it is reserved */
4b8f11c2	48	ut_asserteq(-EBUSY, gpio_get_value(gpio + 1));
96495d90 SG	49	/*
	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	*/
4b8f11c2 SG	53	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
4b8f11c2 SG	54	ut_asserteq_str("b4: input: 0 [ ]", buf);
96495d90 SG	55
	56	/* Change it to an output */
	57	sandbox_gpio_set_direction(dev, offset, 1);
4b8f11c2 SG	58	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
4b8f11c2 SG	59	ut_asserteq_str("b4: output: 0 [ ]", buf);
96495d90 SG	60
96495d90 SG	61	sandbox_gpio_set_value(dev, offset, 1);
4b8f11c2 SG	62	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
4b8f11c2 SG	63	ut_asserteq_str("b4: output: 1 [ ]", buf);
96495d90	64
4b8f11c2 SG	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);
96495d90 SG	68
	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));
4b8f11c2 SG	73	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
4b8f11c2 SG	74	ut_asserteq_str("b4: output: 0 [x] testing", buf);
96495d90 SG	75	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));
4b8f11c2 SG	80	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
4b8f11c2 SG	81	ut_asserteq_str("b4: input: 1 [x] testing", buf);
96495d90 SG	82	sandbox_gpio_set_value(dev, offset, 0);
96495d90 SG	83	ut_asserteq(0, sandbox_gpio_get_value(dev, offset));
4b8f11c2 SG	84	ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
4b8f11c2 SG	85	ut_asserteq_str("b4: input: 0 [x] testing", buf);
96495d90	86
4b8f11c2 SG	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);
96495d90 SG	90
	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
4b8f11c2 SG	101	return 0;
	102	}
	103	DM_TEST(dm_test_gpio, DM_TESTF_SCAN_PDATA \| DM_TESTF_SCAN_FDT);
	104
	105	/* Test that sandbox anonymous GPIOs work correctly */
	106	static 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
96495d90 SG	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);
	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	}
4b8f11c2	125	DM_TEST(dm_test_gpio_anon, DM_TESTF_SCAN_PDATA \| DM_TESTF_SCAN_FDT);
d44f597b SG	126
	127	/* Test that gpio_requestf() works as expected */
	128	static 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	}
	143	DM_TEST(dm_test_gpio_requestf, DM_TESTF_SCAN_PDATA \| DM_TESTF_SCAN_FDT);
4324174d SG	144
	145	/* Test that gpio_request() copies its string */
	146	static 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	}
	165	DM_TEST(dm_test_gpio_copy, DM_TESTF_SCAN_PDATA \| DM_TESTF_SCAN_FDT);
	166
	167	/* Test that we don't leak memory with GPIOs */
	168	static 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	}
4324174d	177	DM_TEST(dm_test_gpio_leak, DM_TESTF_SCAN_PDATA \| DM_TESTF_SCAN_FDT);
3669e0e7 SG	178
	179	/* Test that we can find GPIOs using phandles */
	180	static 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	}
245	DM_TEST(dm_test_gpio_phandles, DM_TESTF_SCAN_PDATA \| DM_TESTF_SCAN_FDT);