diff options
Diffstat (limited to 'roms/u-boot/test/dm/gpio.c')
| -rw-r--r-- | roms/u-boot/test/dm/gpio.c | 780 |
1 files changed, 780 insertions, 0 deletions
diff --git a/roms/u-boot/test/dm/gpio.c b/roms/u-boot/test/dm/gpio.c new file mode 100644 index 000000000..33ae98701 --- /dev/null +++ b/roms/u-boot/test/dm/gpio.c @@ -0,0 +1,780 @@ +// 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 <acpi/acpi_device.h> +#include <asm/gpio.h> +#include <dm/device-internal.h> +#include <dm/root.h> +#include <dm/test.h> +#include <dm/util.h> +#include <test/test.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 plat. 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_flags(dev, offset)); + ut_assertok(ops->set_flags(dev, offset, + GPIOD_IS_OUT | GPIOD_OPEN_DRAIN)); + ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN, + sandbox_gpio_get_flags(dev, offset)); + ut_assertok(ops->set_flags(dev, offset, + GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE)); + ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE, + sandbox_gpio_get_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(10, 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(11, 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(12, 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(13, 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(10, offset); + ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 10, gpio); + ut_assert(gpio_lookup_name("hog_not_exist", &dev, &offset, + &gpio)); + + return 0; +} +DM_TEST(dm_test_gpio, UT_TESTF_SCAN_PDATA | UT_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_flags(gpio_c, 0)); + + /* Set it as output high */ + ut_assertok(dm_gpio_set_value(&desc_list[0], 1)); + ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN | GPIOD_IS_OUT_ACTIVE, + sandbox_gpio_get_flags(gpio_c, 0)); + + /* Set it as output low */ + ut_assertok(dm_gpio_set_value(&desc_list[0], 0)); + ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN, + sandbox_gpio_get_flags(gpio_c, 0)); + + /* GPIO 1 is (GPIO_OUT|GPIO_OPEN_SOURCE) */ + ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_SOURCE, + sandbox_gpio_get_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 */ + ut_assertok(dm_gpio_set_value(&desc_list[1], 0)); + ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_SOURCE, + sandbox_gpio_get_flags(gpio_c, 1)); + + ut_assertok(gpio_get_status(gpio_c, 1, buf, sizeof(buf))); + ut_asserteq_str("c1: output: 0 [x] a-test.test3-gpios1", buf); + + /* + * GPIO 6 is (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_DRAIN). Looking at it + * directlt from the driver, we get GPIOD_IS_OUT_ACTIVE also, since it + * is active low + */ + ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_DRAIN | + GPIOD_IS_OUT_ACTIVE, + sandbox_gpio_get_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 */ + ut_assertok(dm_gpio_set_value(&desc_list[6], 0)); + ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_DRAIN | + GPIOD_IS_OUT_ACTIVE, + sandbox_gpio_get_flags(gpio_c, 6)); + + /* GPIO 7 is (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_SOURCE) */ + ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_SOURCE | + GPIOD_IS_OUT_ACTIVE, + sandbox_gpio_get_flags(gpio_c, 7)); + + /* Set it as output high */ + ut_assertok(dm_gpio_set_value(&desc_list[7], 1)); + ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_SOURCE, + sandbox_gpio_get_flags(gpio_c, 7)); + + /* 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, + UT_TESTF_SCAN_PDATA | UT_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, UT_TESTF_SCAN_PDATA | UT_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, UT_TESTF_SCAN_PDATA | UT_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, UT_TESTF_SCAN_PDATA | UT_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, UT_TESTF_SCAN_PDATA | UT_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_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_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, UT_TESTF_SCAN_PDATA | UT_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_flags(&desc_list[0], &flags)); + ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN, flags); + + ut_assertok(dm_gpio_get_flags(&desc_list[1], &flags)); + ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_SOURCE, flags); + + ut_assertok(dm_gpio_get_flags(&desc_list[2], &flags)); + ut_asserteq(GPIOD_IS_OUT, flags); + + ut_assertok(dm_gpio_get_flags(&desc_list[3], &flags)); + ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_UP, flags); + + ut_assertok(dm_gpio_get_flags(&desc_list[4], &flags)); + ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_DOWN, flags); + + ut_assertok(dm_gpio_get_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, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); + +/* Test of gpio_get_acpi() */ +static int dm_test_gpio_get_acpi(struct unit_test_state *uts) +{ + struct acpi_gpio agpio; + struct udevice *dev; + struct gpio_desc desc; + + 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)); + + /* See sb_gpio_get_acpi() */ + ut_assertok(gpio_get_acpi(&desc, &agpio)); + ut_asserteq(1, agpio.pin_count); + ut_asserteq(4, agpio.pins[0]); + ut_asserteq(ACPI_GPIO_TYPE_IO, agpio.type); + ut_asserteq(ACPI_GPIO_PULL_UP, agpio.pull); + ut_asserteq_str("\\_SB.PINC", agpio.resource); + ut_asserteq(0, agpio.interrupt_debounce_timeout); + ut_asserteq(0, agpio.irq.pin); + ut_asserteq(1234, agpio.output_drive_strength); + ut_asserteq(true, agpio.io_shared); + ut_asserteq(ACPI_GPIO_IO_RESTRICT_INPUT, agpio.io_restrict); + ut_asserteq(ACPI_GPIO_ACTIVE_HIGH, agpio.polarity); + + return 0; +} +DM_TEST(dm_test_gpio_get_acpi, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); + +/* Test of gpio_get_acpi() with an interrupt GPIO */ +static int dm_test_gpio_get_acpi_irq(struct unit_test_state *uts) +{ + struct acpi_gpio agpio; + struct udevice *dev; + struct gpio_desc desc; + + ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev)); + ut_asserteq_str("a-test", dev->name); + ut_assertok(gpio_request_by_name(dev, "test2-gpios", 2, &desc, 0)); + + /* See sb_gpio_get_acpi() */ + ut_assertok(gpio_get_acpi(&desc, &agpio)); + ut_asserteq(1, agpio.pin_count); + ut_asserteq(6, agpio.pins[0]); + ut_asserteq(ACPI_GPIO_TYPE_INTERRUPT, agpio.type); + ut_asserteq(ACPI_GPIO_PULL_DOWN, agpio.pull); + ut_asserteq_str("\\_SB.PINC", agpio.resource); + ut_asserteq(4321, agpio.interrupt_debounce_timeout); + ut_asserteq(6, agpio.irq.pin); + ut_asserteq(ACPI_IRQ_ACTIVE_BOTH, agpio.irq.polarity); + ut_asserteq(ACPI_IRQ_SHARED, agpio.irq.shared); + ut_asserteq(true, agpio.irq.wake); + ut_asserteq(0, agpio.output_drive_strength); + ut_asserteq(false, agpio.io_shared); + ut_asserteq(0, agpio.io_restrict); + ut_asserteq(ACPI_GPIO_ACTIVE_LOW, agpio.polarity); + + return 0; +} +DM_TEST(dm_test_gpio_get_acpi_irq, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); + +/* Test that we can get/release GPIOs using managed API */ +static int dm_test_gpio_devm(struct unit_test_state *uts) +{ + static const u32 flags = GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE; + struct gpio_desc *desc1, *desc2, *desc3, *desc_err; + struct udevice *dev; + struct udevice *dev2; + + ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "a-test", + &dev)); + ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "another-test", + &dev2)); + + /* Get 3 GPIOs from 'a-test' dev */ + desc1 = devm_gpiod_get_index(dev, "test4", 0, flags); + ut_assert(!IS_ERR(desc1)); + desc2 = devm_gpiod_get_index(dev, "test4", 1, flags); + ut_assert(!IS_ERR(desc2)); + desc3 = devm_gpiod_get_index_optional(dev, "test5", 0, flags); + ut_assert(!IS_ERR(desc3)); + ut_assert(desc3); + + /* + * Try get the same 3 GPIOs from 'a-test' and 'another-test' devices. + * check that it fails + */ + desc_err = devm_gpiod_get_index(dev, "test4", 0, flags); + ut_asserteq(-EBUSY, PTR_ERR(desc_err)); + desc_err = devm_gpiod_get_index(dev2, "test4", 0, flags); + ut_asserteq(-EBUSY, PTR_ERR(desc_err)); + desc_err = devm_gpiod_get_index(dev, "test4", 1, flags); + ut_asserteq(-EBUSY, PTR_ERR(desc_err)); + desc_err = devm_gpiod_get_index(dev2, "test4", 1, flags); + ut_asserteq(-EBUSY, PTR_ERR(desc_err)); + desc_err = devm_gpiod_get_index_optional(dev, "test5", 0, flags); + ut_asserteq_ptr(NULL, desc_err); + desc_err = devm_gpiod_get_index_optional(dev2, "test5", 0, flags); + ut_asserteq_ptr(NULL, desc_err); + + /* Try get GPIOs outside of the list */ + desc_err = devm_gpiod_get_index(dev, "test4", 2, flags); + ut_assert(IS_ERR(desc_err)); + desc_err = devm_gpiod_get_index_optional(dev, "test5", 1, flags); + ut_asserteq_ptr(NULL, desc_err); + + /* Manipulate the GPIOs */ + ut_assertok(dm_gpio_set_value(desc1, 1)); + ut_asserteq(1, dm_gpio_get_value(desc1)); + ut_assertok(dm_gpio_set_value(desc1, 0)); + ut_asserteq(0, dm_gpio_get_value(desc1)); + + ut_assertok(dm_gpio_set_value(desc2, 1)); + ut_asserteq(1, dm_gpio_get_value(desc2)); + ut_assertok(dm_gpio_set_value(desc2, 0)); + ut_asserteq(0, dm_gpio_get_value(desc2)); + + ut_assertok(dm_gpio_set_value(desc3, 1)); + ut_asserteq(1, dm_gpio_get_value(desc3)); + ut_assertok(dm_gpio_set_value(desc3, 0)); + ut_asserteq(0, dm_gpio_get_value(desc3)); + + /* Check that the GPIO cannot be owned by more than one device */ + desc_err = devm_gpiod_get_index(dev2, "test4", 0, flags); + ut_asserteq(-EBUSY, PTR_ERR(desc_err)); + desc_err = devm_gpiod_get_index(dev2, "test4", 1, flags); + ut_asserteq(-EBUSY, PTR_ERR(desc_err)); + desc_err = devm_gpiod_get_index_optional(dev2, "test5", 0, flags); + ut_asserteq_ptr(NULL, desc_err); + + /* + * Release one GPIO and check that we can get it back using + * 'another-test' and then 'a-test' + */ + devm_gpiod_put(dev, desc2); + desc2 = devm_gpiod_get_index(dev2, "test4", 1, flags); + ut_assert(!IS_ERR(desc2)); + + devm_gpiod_put(dev2, desc2); + desc2 = devm_gpiod_get_index(dev, "test4", 1, flags); + ut_assert(!IS_ERR(desc2)); + + /* Release one GPIO before removing the 'a-test' dev. */ + devm_gpiod_put(dev, desc2); + device_remove(dev, DM_REMOVE_NORMAL); + + /* All the GPIOs must have been freed. We should be able to claim + * them with the 'another-test' device. + */ + desc1 = devm_gpiod_get_index(dev2, "test4", 0, flags); + ut_assert(!IS_ERR(desc1)); + desc2 = devm_gpiod_get_index(dev2, "test4", 1, flags); + ut_assert(!IS_ERR(desc2)); + desc3 = devm_gpiod_get_index_optional(dev2, "test5", 0, flags); + ut_assert(!IS_ERR(desc3)); + ut_assert(desc3); + + device_remove(dev2, DM_REMOVE_NORMAL); + return 0; +} +DM_TEST(dm_test_gpio_devm, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); + +static int dm_test_clrset_flags(struct unit_test_state *uts) +{ + struct gpio_desc desc; + struct udevice *dev; + ulong flags; + + 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(dm_gpio_clrset_flags(&desc, GPIOD_MASK_DIR, GPIOD_IS_OUT)); + ut_assertok(dm_gpio_get_flags(&desc, &flags)); + ut_asserteq(GPIOD_IS_OUT, flags); + ut_asserteq(GPIOD_IS_OUT, desc.flags); + ut_asserteq(0, sandbox_gpio_get_value(desc.dev, desc.offset)); + + ut_assertok(dm_gpio_clrset_flags(&desc, 0, GPIOD_IS_OUT_ACTIVE)); + ut_assertok(dm_gpio_get_flags(&desc, &flags)); + ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE, flags); + ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE, desc.flags); + ut_asserteq(1, sandbox_gpio_get_value(desc.dev, desc.offset)); + ut_asserteq(1, dm_gpio_get_value(&desc)); + + ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_MASK_DIR, GPIOD_IS_IN)); + ut_assertok(dm_gpio_get_flags(&desc, &flags)); + ut_asserteq(GPIOD_IS_IN, flags & GPIOD_MASK_DIR); + ut_asserteq(GPIOD_IS_IN, desc.flags & GPIOD_MASK_DIR); + + ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_MASK_PULL, + GPIOD_PULL_UP)); + ut_assertok(dm_gpio_get_flags(&desc, &flags)); + ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_UP, flags); + ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_UP, desc.flags); + + /* Check we cannot set both PULL_UP and PULL_DOWN */ + ut_asserteq(-EINVAL, dm_gpio_clrset_flags(&desc, 0, GPIOD_PULL_DOWN)); + + return 0; +} +DM_TEST(dm_test_clrset_flags, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); + +/* Check that an active-low GPIO works as expected */ +static int dm_test_clrset_flags_invert(struct unit_test_state *uts) +{ + struct gpio_desc desc; + struct udevice *dev; + ulong flags; + + 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, + GPIOD_IS_OUT | GPIOD_ACTIVE_LOW)); + + /* + * From this size we see it as 0 (active low), but the sandbox driver + * sees the pin value high + */ + ut_asserteq(0, dm_gpio_get_value(&desc)); + ut_asserteq(1, sandbox_gpio_get_value(desc.dev, desc.offset)); + + ut_assertok(dm_gpio_set_value(&desc, 1)); + ut_asserteq(1, dm_gpio_get_value(&desc)); + ut_asserteq(0, sandbox_gpio_get_value(desc.dev, desc.offset)); + + /* Do the same with dm_gpio_clrset_flags() */ + ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_IS_OUT_ACTIVE, 0)); + ut_asserteq(0, dm_gpio_get_value(&desc)); + ut_asserteq(1, sandbox_gpio_get_value(desc.dev, desc.offset)); + + ut_assertok(dm_gpio_clrset_flags(&desc, 0, GPIOD_IS_OUT_ACTIVE)); + ut_asserteq(1, dm_gpio_get_value(&desc)); + ut_asserteq(0, sandbox_gpio_get_value(desc.dev, desc.offset)); + + ut_assertok(dm_gpio_get_flags(&desc, &flags)); + ut_asserteq(GPIOD_IS_OUT | GPIOD_ACTIVE_LOW | GPIOD_IS_OUT_ACTIVE, + flags); + ut_asserteq(GPIOD_IS_OUT | GPIOD_ACTIVE_LOW | GPIOD_IS_OUT_ACTIVE, + desc.flags); + + ut_assertok(dm_gpio_clrset_flags(&desc, GPIOD_IS_OUT_ACTIVE, 0)); + ut_assertok(dm_gpio_get_flags(&desc, &flags)); + ut_asserteq(GPIOD_IS_OUT | GPIOD_ACTIVE_LOW, flags); + ut_asserteq(GPIOD_IS_OUT | GPIOD_ACTIVE_LOW, desc.flags); + + return 0; +} +DM_TEST(dm_test_clrset_flags_invert, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); + +static int set_gpios(struct unit_test_state *uts, struct gpio_desc *desc, + int count, uint value) +{ + int i; + + for (i = 0; i < count; i++) { + const uint mask = 1 << i; + + ut_assertok(sandbox_gpio_set_value(desc[i].dev, desc[i].offset, + value & mask)); + } + + return 0; +} + +/* Check that an active-low GPIO works as expected */ +static int dm_test_gpio_get_values_as_int(struct unit_test_state *uts) +{ + const int gpio_count = 3; + struct gpio_desc desc[gpio_count]; + struct udevice *dev; + + ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev)); + ut_asserteq_str("a-test", dev->name); + + ut_asserteq(3, gpio_request_list_by_name(dev, "test-gpios", desc, + gpio_count, GPIOD_IS_IN)); + ut_assertok(set_gpios(uts, desc, gpio_count, 0)); + ut_asserteq(0, dm_gpio_get_values_as_int(desc, gpio_count)); + + ut_assertok(set_gpios(uts, desc, gpio_count, 5)); + ut_asserteq(5, dm_gpio_get_values_as_int(desc, gpio_count)); + + ut_assertok(set_gpios(uts, desc, gpio_count, 7)); + ut_asserteq(7, dm_gpio_get_values_as_int(desc, gpio_count)); + + return 0; +} +DM_TEST(dm_test_gpio_get_values_as_int, + UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); + +/* Check that an active-low GPIO works as expected */ +static int dm_test_gpio_get_values_as_int_base3(struct unit_test_state *uts) +{ + const int gpio_count = 3; + struct gpio_desc desc[gpio_count]; + struct udevice *dev; + + ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev)); + ut_asserteq_str("a-test", dev->name); + + ut_asserteq(3, gpio_request_list_by_name(dev, "test-gpios", desc, + gpio_count, GPIOD_IS_IN)); + + /* + * First test the sandbox GPIO driver works as expected. The external + * pull resistor should be stronger than the internal one. + */ + sandbox_gpio_set_flags(desc[0].dev, desc[0].offset, + GPIOD_IS_IN | GPIOD_EXT_PULL_UP | GPIOD_PULL_UP); + ut_asserteq(1, dm_gpio_get_value(desc)); + + sandbox_gpio_set_flags(desc[0].dev, desc[0].offset, GPIOD_IS_IN | + GPIOD_EXT_PULL_DOWN | GPIOD_PULL_UP); + ut_asserteq(0, dm_gpio_get_value(desc)); + + sandbox_gpio_set_flags(desc[0].dev, desc[0].offset, + GPIOD_IS_IN | GPIOD_PULL_UP); + ut_asserteq(1, dm_gpio_get_value(desc)); + + sandbox_gpio_set_flags(desc[0].dev, desc[0].offset, GPIOD_PULL_DOWN); + ut_asserteq(0, dm_gpio_get_value(desc)); + + /* + * Set up pins: pull-up (1), pull-down (0) and floating (2). This should + * result in digits 2 0 1, i.e. 2 * 9 + 1 * 3 = 19 + */ + sandbox_gpio_set_flags(desc[0].dev, desc[0].offset, GPIOD_EXT_PULL_UP); + sandbox_gpio_set_flags(desc[1].dev, desc[1].offset, + GPIOD_EXT_PULL_DOWN); + sandbox_gpio_set_flags(desc[2].dev, desc[2].offset, 0); + ut_asserteq(19, dm_gpio_get_values_as_int_base3(desc, gpio_count)); + + /* + * Set up pins: floating (2), pull-up (1) and pull-down (0). This should + * result in digits 0 1 2, i.e. 1 * 3 + 2 = 5 + */ + sandbox_gpio_set_flags(desc[0].dev, desc[0].offset, 0); + sandbox_gpio_set_flags(desc[1].dev, desc[1].offset, GPIOD_EXT_PULL_UP); + sandbox_gpio_set_flags(desc[2].dev, desc[2].offset, + GPIOD_EXT_PULL_DOWN); + ut_asserteq(5, dm_gpio_get_values_as_int_base3(desc, gpio_count)); + + return 0; +} +DM_TEST(dm_test_gpio_get_values_as_int_base3, + UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); |