brain-hackers_pepepper-mirror/u-boot-brain
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u-boot-brain/test/dm/gpio.c
Walter Lozano e3e2470fdd drivers: rename drivers to match compatible string 
When using OF_PLATDATA, the bind process between devices and drivers
is performed trying to match compatible string with driver names.
However driver names are not strictly defined, and also there are different
names used when declaring a driver with U_BOOT_DRIVER, the name of the
symbol used in the linker list and the used in the struct driver_info.

In order to make things a bit more clear, rename the drivers names. This
will also help for further OF_PLATDATA improvements, such as checking
for valid driver names.

Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add a fix for sandbox of-platdata to avoid using an invalid ANSI colour:
Signed-off-by: Simon Glass <sjg@chromium.org>
2020-07-09 18:57:22 -06:00

420 lines
15 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2013 Google, Inc
*/
#include <common.h>
#include <fdtdec.h>
#include <dm.h>
#include <log.h>
#include <malloc.h>
#include <dm/root.h>
#include <dm/test.h>
#include <dm/util.h>
#include <asm/gpio.h>
#include <test/ut.h>
/* Test that sandbox GPIOs work correctly */
static int dm_test_gpio(struct unit_test_state *uts)
{
unsigned int offset, gpio;
struct dm_gpio_ops *ops;
struct udevice *dev;
struct gpio_desc *desc;
const char *name;
int offset_count;
char buf[80];
/*
* We expect to get 4 banks. One is anonymous (just numbered) and
* comes from platdata. The other are named a (20 gpios),
* b (10 gpios) and c (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 open drain output, and reset it */
ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE,
sandbox_gpio_get_dir_flags(dev, offset));
ut_assertok(ops->set_dir_flags(dev, offset,
GPIOD_IS_OUT | GPIOD_OPEN_DRAIN));
ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN,
sandbox_gpio_get_dir_flags(dev, offset));
ut_assertok(ops->set_dir_flags(dev, offset,
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE));
ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE,
sandbox_gpio_get_dir_flags(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);
/* add gpio hog tests */
ut_assertok(gpio_hog_lookup_name("hog_input_active_low", &desc));
ut_asserteq(GPIOD_IS_IN | GPIOD_ACTIVE_LOW, desc->flags);
ut_asserteq(0, desc->offset);
ut_asserteq(1, dm_gpio_get_value(desc));
ut_assertok(gpio_hog_lookup_name("hog_input_active_high", &desc));
ut_asserteq(GPIOD_IS_IN, desc->flags);
ut_asserteq(1, desc->offset);
ut_asserteq(0, dm_gpio_get_value(desc));
ut_assertok(gpio_hog_lookup_name("hog_output_low", &desc));
ut_asserteq(GPIOD_IS_OUT, desc->flags);
ut_asserteq(2, desc->offset);
ut_asserteq(0, dm_gpio_get_value(desc));
ut_assertok(dm_gpio_set_value(desc, 1));
ut_asserteq(1, dm_gpio_get_value(desc));
ut_assertok(gpio_hog_lookup_name("hog_output_high", &desc));
ut_asserteq(GPIOD_IS_OUT, desc->flags);
ut_asserteq(3, desc->offset);
ut_asserteq(1, dm_gpio_get_value(desc));
ut_assertok(dm_gpio_set_value(desc, 0));
ut_asserteq(0, dm_gpio_get_value(desc));
/* Check if lookup for labels work */
ut_assertok(gpio_lookup_name("hog_input_active_low", &dev, &offset,
&gpio));
ut_asserteq_str(dev->name, "base-gpios");
ut_asserteq(0, offset);
ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 0, gpio);
ut_assert(gpio_lookup_name("hog_not_exist", &dev, &offset,
&gpio));
return 0;
}
DM_TEST(dm_test_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test that GPIO open-drain/open-source emulation works correctly */
static int dm_test_gpio_opendrain_opensource(struct unit_test_state *uts)
{
struct gpio_desc desc_list[8];
struct udevice *dev, *gpio_c;
char buf[80];
ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
ut_asserteq_str("a-test", dev->name);
ut_assertok(uclass_get_device(UCLASS_GPIO, 3, &gpio_c));
ut_asserteq_str("pinmux-gpios", gpio_c->name);
ut_asserteq(8, gpio_request_list_by_name(dev, "test3-gpios", desc_list,
ARRAY_SIZE(desc_list), 0))
ut_asserteq(true, !!device_active(gpio_c));
ut_asserteq_ptr(gpio_c, desc_list[0].dev);
ut_asserteq_ptr(gpio_c, desc_list[1].dev);
ut_asserteq_ptr(gpio_c, desc_list[2].dev);
ut_asserteq_ptr(gpio_c, desc_list[3].dev);
ut_asserteq_ptr(gpio_c, desc_list[4].dev);
ut_asserteq_ptr(gpio_c, desc_list[5].dev);
ut_asserteq_ptr(gpio_c, desc_list[6].dev);
ut_asserteq_ptr(gpio_c, desc_list[7].dev);
/* GPIO 0 is (GPIO_OUT|GPIO_OPEN_DRAIN) */
ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN,
sandbox_gpio_get_dir_flags(gpio_c, 0));
/* Set it as output high, should become an input */
ut_assertok(dm_gpio_set_value(&desc_list[0], 1));
ut_assertok(gpio_get_status(gpio_c, 0, buf, sizeof(buf)));
ut_asserteq_str("c0: input: 0 [x] a-test.test3-gpios0", buf);
/* Set it as output low, should become output low */
ut_assertok(dm_gpio_set_value(&desc_list[0], 0));
ut_assertok(gpio_get_status(gpio_c, 0, buf, sizeof(buf)));
ut_asserteq_str("c0: output: 0 [x] a-test.test3-gpios0", buf);
/* GPIO 1 is (GPIO_OUT|GPIO_OPEN_SOURCE) */
ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_SOURCE,
sandbox_gpio_get_dir_flags(gpio_c, 1));
/* Set it as output high, should become output high */
ut_assertok(dm_gpio_set_value(&desc_list[1], 1));
ut_assertok(gpio_get_status(gpio_c, 1, buf, sizeof(buf)));
ut_asserteq_str("c1: output: 1 [x] a-test.test3-gpios1", buf);
/* Set it as output low, should become an input */
ut_assertok(dm_gpio_set_value(&desc_list[1], 0));
ut_assertok(gpio_get_status(gpio_c, 1, buf, sizeof(buf)));
ut_asserteq_str("c1: input: 1 [x] a-test.test3-gpios1", buf);
/* GPIO 6 is (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_DRAIN) */
ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_DRAIN,
sandbox_gpio_get_dir_flags(gpio_c, 6));
/* Set it as output high, should become output low */
ut_assertok(dm_gpio_set_value(&desc_list[6], 1));
ut_assertok(gpio_get_status(gpio_c, 6, buf, sizeof(buf)));
ut_asserteq_str("c6: output: 0 [x] a-test.test3-gpios6", buf);
/* Set it as output low, should become an input */
ut_assertok(dm_gpio_set_value(&desc_list[6], 0));
ut_assertok(gpio_get_status(gpio_c, 6, buf, sizeof(buf)));
ut_asserteq_str("c6: input: 0 [x] a-test.test3-gpios6", buf);
/* GPIO 7 is (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_SOURCE) */
ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_SOURCE,
sandbox_gpio_get_dir_flags(gpio_c, 7));
/* Set it as output high, should become an input */
ut_assertok(dm_gpio_set_value(&desc_list[7], 1));
ut_assertok(gpio_get_status(gpio_c, 7, buf, sizeof(buf)));
ut_asserteq_str("c7: input: 0 [x] a-test.test3-gpios7", buf);
/* Set it as output low, should become output high */
ut_assertok(dm_gpio_set_value(&desc_list[7], 0));
ut_assertok(gpio_get_status(gpio_c, 7, buf, sizeof(buf)));
ut_asserteq_str("c7: output: 1 [x] a-test.test3-gpios7", buf);
ut_assertok(gpio_free_list(dev, desc_list, 8));
return 0;
}
DM_TEST(dm_test_gpio_opendrain_opensource,
DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test that sandbox anonymous GPIOs work correctly */
static int dm_test_gpio_anon(struct unit_test_state *uts)
{
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, "sandbox_gpio");
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 unit_test_state *uts)
{
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 unit_test_state *uts)
{
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 unit_test_state *uts)
{
ut_assertok(dm_test_gpio(uts));
ut_assertok(dm_test_gpio_anon(uts));
ut_assertok(dm_test_gpio_requestf(uts));
ut_assertok(dm_leak_check_end(uts));
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 unit_test_state *uts)
{
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_asserteq(GPIOF_INPUT, gpio_get_function(gpio_a, 4, NULL));
ut_assertok(gpio_free_list(dev, desc_list, 3));
ut_asserteq(GPIOF_UNUSED, gpio_get_function(gpio_a, 4, NULL));
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(GPIOF_OUTPUT, gpio_get_function(gpio_a, 4, NULL));
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(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE,
sandbox_gpio_get_dir_flags(gpio_a, 1));
ut_asserteq(6, gpio_request_list_by_name(dev, "test2-gpios", desc_list,
ARRAY_SIZE(desc_list), 0));
/* This was set to output previously but flags resetted to 0 = INPUT */
ut_asserteq(0, sandbox_gpio_get_dir_flags(gpio_a, 1));
ut_asserteq(GPIOF_INPUT, 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);
/* Check the gpio pin configuration get from device tree information */
static int dm_test_gpio_get_dir_flags(struct unit_test_state *uts)
{
struct gpio_desc desc_list[6];
struct udevice *dev;
ulong flags;
ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
ut_asserteq(6, gpio_request_list_by_name(dev, "test3-gpios", desc_list,
ARRAY_SIZE(desc_list), 0));
ut_assertok(dm_gpio_get_dir_flags(&desc_list[0], &flags));
ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN, flags);
ut_assertok(dm_gpio_get_dir_flags(&desc_list[1], &flags));
ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_SOURCE, flags);
ut_assertok(dm_gpio_get_dir_flags(&desc_list[2], &flags));
ut_asserteq(GPIOD_IS_OUT, flags);
ut_assertok(dm_gpio_get_dir_flags(&desc_list[3], &flags));
ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_UP, flags);
ut_assertok(dm_gpio_get_dir_flags(&desc_list[4], &flags));
ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_DOWN, flags);
ut_assertok(dm_gpio_get_dir_flags(&desc_list[5], &flags));
ut_asserteq(GPIOD_IS_IN, flags);
ut_assertok(gpio_free_list(dev, desc_list, 6));
return 0;
}
DM_TEST(dm_test_gpio_get_dir_flags, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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